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pygoscelis
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Posts: 389

PostPosted: Mon Feb 10, 2020 8:26 pm    Post subject: X won't start in desired resolution Reply with quote

I have a 2560x1440 monitor which used to work seamlessly at full resolution until today's emerge. Now X starts in 1920x1200 mode.

I am able to manually switch to the desired resolution with xrandr, but this is mildly annoying.

I tried to create device/screen/monitor sections in xorg.conf, but it didn't work.

Code:

Section "Device"
  Identifier  "Intel"
EndSection

Section "Monitor"
  Identifier  "DVI screen"
  Option      "PreferredMode" "2560x1440"
  HorizSync   30.0-62.0
  VertRefresh 50.0-70.0

EndSection

Section "Screen"
    Identifier    "Default Screen"
    Monitor       "DVI screen"
    Device        "Intel"
    DefaultDepth    24
    SubSection "Display"
        Depth    24
        Modes     "2560x1440"
    EndSubSection
EndSection


How can I re-enable my resolution by default? Thanks.
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dmpogo
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PostPosted: Mon Feb 10, 2020 11:44 pm    Post subject: Re: X won't start in desired resolution Reply with quote

pygoscelis wrote:
I have a 2560x1440 monitor which used to work seamlessly at full resolution until today's emerge. Now X starts in 1920x1200 mode.

I am able to manually switch to the desired resolution with xrandr, but this is mildly annoying.

I tried to create device/screen/monitor sections in xorg.conf, but it didn't work.

Code:

Section "Device"
  Identifier  "Intel"
EndSection

Section "Monitor"
  Identifier  "DVI screen"
  Option      "PreferredMode" "2560x1440"
  HorizSync   30.0-62.0
  VertRefresh 50.0-70.0

EndSection

Section "Screen"
    Identifier    "Default Screen"
    Monitor       "DVI screen"
    Device        "Intel"
    DefaultDepth    24
    SubSection "Display"
        Depth    24
        Modes     "2560x1440"
    EndSubSection
EndSection


How can I re-enable my resolution by default? Thanks.



can you remove your xorg.conf (well, save it somewhere for later), and post output of /var/log/Xorg.0.log after you boot ? (and presumably end up in 1920x1200 mode)

Also, what is your physical connection to the monitor ? DVI-I, DVI-D, displayport, HDMI ?
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Jaglover
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PostPosted: Mon Feb 10, 2020 11:47 pm    Post subject: Reply with quote

In addition, your DE can have its own idea about your resolution. If you have a DE, that is.
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pygoscelis
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PostPosted: Tue Feb 11, 2020 6:44 pm    Post subject: Reply with quote

Here's tge log file. It doesn't change if I remove or restore the xorg.conf.

Code:

[  2324.267] (--) Log file renamed from "/var/log/Xorg.pid-9802.log" to "/var/log/Xorg.0.log"
[  2324.267]
X.Org X Server 1.20.6
X Protocol Version 11, Revision 0
[  2324.267] Build Operating System: Linux 4.19.72-gentoo x86_64 Gentoo
[  2324.267] Current Operating System: Linux gentoojr 4.19.72-gentoo #1 SMP Fri Oct 11 23:13:33 IDT 2019 x86_64
[  2324.268] Kernel command line: BOOT_IMAGE=/kernel-genkernel-x86_64-4.19.72-gentoo root=UUID=f92695fc-8ddf-4d36-9027-da6c6b8cba45 ro
[  2324.268] Build Date: 09 February 2020  01:17:37AM
[  2324.268] 
[  2324.268] Current version of pixman: 0.38.4
[  2324.268]    Before reporting problems, check http://wiki.x.org
   to make sure that you have the latest version.
[  2324.268] Markers: (--) probed, (**) from config file, (==) default setting,
   (++) from command line, (!!) notice, (II) informational,
   (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[  2324.268] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Feb 10 22:10:19 2020
[  2324.268] (==) Using config directory: "/etc/X11/xorg.conf.d"
[  2324.268] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[  2324.268] (==) No Layout section.  Using the first Screen section.
[  2324.268] (**) |-->Screen "Default Screen" (0)
[  2324.268] (**) |   |-->Monitor "DVI screen"
[  2324.268] (**) |   |-->Device "Intel"
[  2324.268] (==) Automatically adding devices
[  2324.268] (==) Automatically enabling devices
[  2324.268] (==) Automatically adding GPU devices
[  2324.268] (==) Max clients allowed: 256, resource mask: 0x1fffff
[  2324.268] (WW) The directory "/usr/share/fonts/OTF/" does not exist.
[  2324.268]    Entry deleted from font path.
[  2324.268] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/100dpi/".
[  2324.268]    Entry deleted from font path.
[  2324.268]    (Run 'mkfontdir' on "/usr/share/fonts/100dpi/").
[  2324.268] (WW) `fonts.dir' not found (or not valid) in "/usr/share/fonts/75dpi/".
[  2324.268]    Entry deleted from font path.
[  2324.268]    (Run 'mkfontdir' on "/usr/share/fonts/75dpi/").
[  2324.268] (==) FontPath set to:
   /usr/share/fonts/misc/,
   /usr/share/fonts/TTF/,
   /usr/share/fonts/Type1/
[  2324.268] (==) ModulePath set to "/usr/lib64/xorg/modules"
[  2324.268] (II) The server relies on udev to provide the list of input devices.
   If no devices become available, reconfigure udev or disable AutoAddDevices.
[  2324.268] (II) Loader magic: 0x5573b5046c40
[  2324.268] (II) Module ABI versions:
[  2324.268]    X.Org ANSI C Emulation: 0.4
[  2324.268]    X.Org Video Driver: 24.0
[  2324.268]    X.Org XInput driver : 24.1
[  2324.268]    X.Org Server Extension : 10.0
[  2324.269] (II) xfree86: Adding drm device (/dev/dri/card0)
[  2324.279] (--) PCI:*(0@0:2:0) 8086:0412:8086:2049 rev 6, Mem @ 0xf7800000/4194304, 0xe0000000/268435456, I/O @ 0x0000f000/64, BIOS @ 0x????????/131072
[  2324.279] (II) LoadModule: "glx"
[  2324.279] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[  2324.280] (II) Module glx: vendor="X.Org Foundation"
[  2324.280]    compiled for 1.20.6, module version = 1.0.0
[  2324.280]    ABI class: X.Org Server Extension, version 10.0
[  2324.280] (==) Matched intel as autoconfigured driver 0
[  2324.280] (==) Matched modesetting as autoconfigured driver 1
[  2324.280] (==) Matched fbdev as autoconfigured driver 2
[  2324.280] (==) Matched vesa as autoconfigured driver 3
[  2324.280] (==) Assigned the driver to the xf86ConfigLayout
[  2324.280] (II) LoadModule: "intel"
[  2324.280] (II) Loading /usr/lib64/xorg/modules/drivers/intel_drv.so
[  2324.281] (II) Module intel: vendor="X.Org Foundation"
[  2324.281]    compiled for 1.20.6, module version = 2.99.917
[  2324.281]    Module class: X.Org Video Driver
[  2324.281]    ABI class: X.Org Video Driver, version 24.0
[  2324.281] (II) LoadModule: "modesetting"
[  2324.281] (II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
[  2324.281] (II) Module modesetting: vendor="X.Org Foundation"
[  2324.281]    compiled for 1.20.6, module version = 1.20.6
[  2324.281]    Module class: X.Org Video Driver
[  2324.281]    ABI class: X.Org Video Driver, version 24.0
[  2324.281] (II) LoadModule: "fbdev"
[  2324.281] (WW) Warning, couldn't open module fbdev
[  2324.281] (EE) Failed to load module "fbdev" (module does not exist, 0)
[  2324.281] (II) LoadModule: "vesa"
[  2324.281] (WW) Warning, couldn't open module vesa
[  2324.281] (EE) Failed to load module "vesa" (module does not exist, 0)
[  2324.281] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
   i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
   915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
   Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
   GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[  2324.282] (II) intel: Driver for Intel(R) HD Graphics
[  2324.282] (II) intel: Driver for Intel(R) Iris(TM) Graphics
[  2324.282] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics
[  2324.282] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[  2324.282] (++) using VT number 7

[  2324.299] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20180719
[  2324.299] (WW) Falling back to old probe method for modesetting
[  2324.300] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 4600
[  2324.300] (--) intel(0): CPU: x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx, avx2; using a maximum of 4 threads
[  2324.300] (**) intel(0): Depth 24, (--) framebuffer bpp 32
[  2324.300] (==) intel(0): RGB weight 888
[  2324.300] (==) intel(0): Default visual is TrueColor
[  2324.300] (II) intel(0): Output VGA1 using monitor section DVI screen
[  2324.300] (**) intel(0): Option "PreferredMode" "2560x1440"
[  2324.300] (II) intel(0): Enabled output VGA1
[  2324.300] (II) intel(0): Output HDMI1 has no monitor section
[  2324.300] (II) intel(0): Enabled output HDMI1
[  2324.300] (II) intel(0): Output DP1 has no monitor section
[  2324.301] (II) intel(0): Enabled output DP1
[  2324.301] (II) intel(0): Output HDMI2 has no monitor section
[  2324.301] (II) intel(0): Enabled output HDMI2
[  2324.301] (II) intel(0): Output HDMI3 has no monitor section
[  2324.301] (II) intel(0): Enabled output HDMI3
[  2324.301] (--) intel(0): Using a maximum size of 256x256 for hardware cursors
[  2324.301] (II) intel(0): Output VIRTUAL1 has no monitor section
[  2324.301] (II) intel(0): Enabled output VIRTUAL1
[  2324.301] (II) intel(0): EDID for output DP1
[  2324.315] (II) intel(0): EDID for output HDMI1
[  2324.315] (II) intel(0): Manufacturer: DEL  Model: 407e  Serial#: 926365004
[  2324.315] (II) intel(0): Year: 2013  Week: 35
[  2324.315] (II) intel(0): EDID Version: 1.3
[  2324.315] (II) intel(0): Digital Display Input
[  2324.315] (II) intel(0): Max Image Size [cm]: horiz.: 60  vert.: 34
[  2324.315] (II) intel(0): Gamma: 2.20
[  2324.315] (II) intel(0): DPMS capabilities: StandBy Suspend Off
[  2324.315] (II) intel(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4
[  2324.315] (II) intel(0): First detailed timing is preferred mode
[  2324.315] (II) intel(0): redX: 0.653 redY: 0.336   greenX: 0.295 greenY: 0.640
[  2324.315] (II) intel(0): blueX: 0.146 blueY: 0.042   whiteX: 0.313 whiteY: 0.329
[  2324.315] (II) intel(0): Supported established timings:
[  2324.315] (II) intel(0): 720x400@70Hz
[  2324.315] (II) intel(0): 640x480@60Hz
[  2324.315] (II) intel(0): 640x480@75Hz
[  2324.315] (II) intel(0): 800x600@60Hz
[  2324.315] (II) intel(0): 800x600@75Hz
[  2324.315] (II) intel(0): 1024x768@60Hz
[  2324.315] (II) intel(0): 1024x768@75Hz
[  2324.315] (II) intel(0): 1280x1024@75Hz
[  2324.315] (II) intel(0): Manufacturer's mask: 0
[  2324.315] (II) intel(0): Supported standard timings:
[  2324.315] (II) intel(0): #0: hsize: 1280  vsize 800  refresh: 60  vid: 129
[  2324.315] (II) intel(0): #1: hsize: 1680  vsize 1050  refresh: 60  vid: 179
[  2324.315] (II) intel(0): #2: hsize: 1920  vsize 1200  refresh: 60  vid: 209
[  2324.315] (II) intel(0): #3: hsize: 1152  vsize 864  refresh: 75  vid: 20337
[  2324.315] (II) intel(0): #4: hsize: 1600  vsize 1200  refresh: 60  vid: 16553
[  2324.315] (II) intel(0): #5: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
[  2324.315] (II) intel(0): #6: hsize: 1920  vsize 1080  refresh: 60  vid: 49361
[  2324.315] (II) intel(0): Supported detailed timing:
[  2324.315] (II) intel(0): clock: 241.5 MHz   Image Size:  597 x 336 mm
[  2324.315] (II) intel(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
[  2324.315] (II) intel(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1481 v_border: 0
[  2324.315] (II) intel(0): Serial No: 7JNY538T775L
[  2324.315] (II) intel(0): Monitor name: DELL U2713HM
[  2324.315] (II) intel(0): Ranges: V min: 49 V max: 86 Hz, H min: 29 H max: 113 kHz, PixClock max 285 MHz
[  2324.316] (II) intel(0): EDID (in hex):
[  2324.316] (II) intel(0):    00ffffffffffff0010ac7e404c353737
[  2324.316] (II) intel(0):    23170103803c2278ea4bb5a7564ba325
[  2324.316] (II) intel(0):    0a5054a54b008100b300d100714fa940
[  2324.316] (II) intel(0):    8180d1c00101565e00a0a0a029503020
[  2324.316] (II) intel(0):    350055502100001a000000ff00374a4e
[  2324.316] (II) intel(0):    59353338543737354c0a000000fc0044
[  2324.316] (II) intel(0):    454c4c205532373133484d0a000000fd
[  2324.316] (II) intel(0):    0031561d711c000a20202020202000b3
[  2324.316] (II) intel(0): Printing probed modes for output HDMI1
[  2324.316] (II) intel(0): Modeline "1920x1200"x60.0  154.00  1920 1968 2000 2080  1200 1203 1209 1235 +hsync -vsync (74.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 -hsync -vsync (67.5 kHz e)
[  2324.316] (II) intel(0): Modeline "1600x1200"x60.0  162.00  1600 1664 1856 2160  1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1680x1050"x60.0  119.00  1680 1728 1760 1840  1050 1053 1059 1080 +hsync -vsync (64.7 kHz e)
[  2324.316] (II) intel(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1280x800"x60.0   71.00  1280 1328 1360 1440  800 803 809 823 +hsync -vsync (49.3 kHz e)
[  2324.316] (II) intel(0): Modeline "1152x864"x75.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
[  2324.316] (II) intel(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[  2324.316] (II) intel(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[  2324.316] (II) intel(0): Modeline "800x600"x60.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[  2324.316] (II) intel(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[  2324.316] (II) intel(0): Modeline "640x480"x60.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[  2324.316] (II) intel(0): Modeline "720x400"x70.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
[  2324.317] (II) intel(0): EDID for output HDMI2
[  2324.319] (II) intel(0): EDID for output HDMI3
[  2324.332] (II) intel(0): EDID for output VGA1
[  2324.332] (II) intel(0): EDID for output VIRTUAL1
[  2324.332] (II) intel(0): Output DP1 disconnected
[  2324.332] (II) intel(0): Output HDMI1 connected
[  2324.332] (II) intel(0): Output HDMI2 disconnected
[  2324.332] (II) intel(0): Output HDMI3 disconnected
[  2324.332] (II) intel(0): Output VGA1 disconnected
[  2324.332] (II) intel(0): Output VIRTUAL1 disconnected
[  2324.332] (II) intel(0): Using exact sizes for initial modes
[  2324.332] (II) intel(0): Output HDMI1 using initial mode 1920x1080 +0+0
[  2324.332] (==) intel(0): TearFree disabled
[  2324.332] (==) intel(0): Using gamma correction (1.0, 1.0, 1.0)
[  2324.332] (==) intel(0): DPI set to (96, 96)
[  2324.332] (II) Loading sub module "dri3"
[  2324.332] (II) LoadModule: "dri3"
[  2324.332] (II) Module "dri3" already built-in
[  2324.332] (II) Loading sub module "dri2"
[  2324.332] (II) LoadModule: "dri2"
[  2324.332] (II) Module "dri2" already built-in
[  2324.332] (II) Loading sub module "present"
[  2324.332] (II) LoadModule: "present"
[  2324.333] (II) Module "present" already built-in
[  2324.333] (II) UnloadModule: "modesetting"
[  2324.333] (II) Unloading modesetting
[  2324.333] (II) intel(0): SNA initialized with Haswell (gen7.5, gt2) backend
[  2324.333] (==) intel(0): Backing store enabled
[  2324.333] (==) intel(0): Silken mouse enabled
[  2324.333] (II) intel(0): HW Cursor enabled
[  2324.333] (==) intel(0): DPMS enabled
[  2324.333] (==) intel(0): Display hotplug detection enabled
[  2324.333] (II) intel(0): [DRI2] Setup complete
[  2324.333] (II) intel(0): [DRI2]   DRI driver: i965
[  2324.333] (II) intel(0): [DRI2]   VDPAU driver: va_gl
[  2324.333] (II) intel(0): direct rendering: DRI2 DRI3 enabled
[  2324.333] (II) intel(0): hardware support for Present enabled
[  2324.333] (WW) intel(0): Option "PreferredMode" is not used
[  2324.333] (II) Initializing extension Generic Event Extension
[  2324.333] (II) Initializing extension SHAPE
[  2324.333] (II) Initializing extension MIT-SHM
[  2324.333] (II) Initializing extension XInputExtension
[  2324.334] (II) Initializing extension XTEST
[  2324.334] (II) Initializing extension BIG-REQUESTS
[  2324.334] (II) Initializing extension SYNC
[  2324.334] (II) Initializing extension XKEYBOARD
[  2324.334] (II) Initializing extension XC-MISC
[  2324.334] (II) Initializing extension XFIXES
[  2324.334] (II) Initializing extension RENDER
[  2324.334] (II) Initializing extension RANDR
[  2324.334] (II) Initializing extension COMPOSITE
[  2324.334] (II) Initializing extension DAMAGE
[  2324.334] (II) Initializing extension MIT-SCREEN-SAVER
[  2324.334] (II) Initializing extension DOUBLE-BUFFER
[  2324.334] (II) Initializing extension RECORD
[  2324.334] (II) Initializing extension DPMS
[  2324.334] (II) Initializing extension Present
[  2324.334] (II) Initializing extension DRI3
[  2324.334] (II) Initializing extension X-Resource
[  2324.334] (II) Initializing extension XVideo
[  2324.334] (II) Initializing extension XVideo-MotionCompensation
[  2324.334] (II) Initializing extension GLX
[  2324.344] (II) AIGLX: Loaded and initialized i965
[  2324.344] (II) GLX: Initialized DRI2 GL provider for screen 0
[  2324.344] (II) Initializing extension XFree86-VidModeExtension
[  2324.344] (II) Initializing extension XFree86-DGA
[  2324.344] (II) Initializing extension XFree86-DRI
[  2324.344] (II) Initializing extension DRI2
[  2324.346] (II) intel(0): switch to mode 1920x1080@60.0 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection none
[  2324.360] (II) intel(0): Setting screen physical size to 508 x 285
[  2324.396] (II) config/udev: Adding input device Power Button (/dev/input/event1)
[  2324.396] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[  2324.396] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[  2324.396] (II) LoadModule: "libinput"
[  2324.396] (II) Loading /usr/lib64/xorg/modules/input/libinput_drv.so
[  2324.396] (II) Module libinput: vendor="X.Org Foundation"
[  2324.396]    compiled for 1.20.6, module version = 0.29.0
[  2324.396]    Module class: X.Org XInput Driver
[  2324.396]    ABI class: X.Org XInput driver, version 24.1
[  2324.396] (II) Using input driver 'libinput' for 'Power Button'
[  2324.396] (**) Power Button: always reports core events
[  2324.396] (**) Option "Device" "/dev/input/event1"
[  2324.397] (**) Option "_source" "server/udev"
[  2324.398] (II) event1  - Power Button: is tagged by udev as: Keyboard
[  2324.398] (II) event1  - Power Button: device is a keyboard
[  2324.398] (II) event1  - Power Button: device removed
[  2324.414] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input1/event1"
[  2324.414] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6)
[  2324.414] (II) event1  - Power Button: is tagged by udev as: Keyboard
[  2324.414] (II) event1  - Power Button: device is a keyboard
[  2324.415] (II) config/udev: Adding input device Video Bus (/dev/input/event7)
[  2324.415] (**) Video Bus: Applying InputClass "evdev keyboard catchall"
[  2324.415] (**) Video Bus: Applying InputClass "libinput keyboard catchall"
[  2324.415] (II) Using input driver 'libinput' for 'Video Bus'
[  2324.415] (**) Video Bus: always reports core events
[  2324.415] (**) Option "Device" "/dev/input/event7"
[  2324.415] (**) Option "_source" "server/udev"
[  2324.416] (II) event7  - Video Bus: is tagged by udev as: Keyboard
[  2324.416] (II) event7  - Video Bus: device is a keyboard
[  2324.416] (II) event7  - Video Bus: device removed
[  2324.433] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/LNXVIDEO:00/input/input9/event7"
[  2324.433] (II) XINPUT: Adding extended input device "Video Bus" (type: KEYBOARD, id 7)
[  2324.433] (II) event7  - Video Bus: is tagged by udev as: Keyboard
[  2324.433] (II) event7  - Video Bus: device is a keyboard
[  2324.434] (II) config/udev: Adding input device Power Button (/dev/input/event0)
[  2324.434] (**) Power Button: Applying InputClass "evdev keyboard catchall"
[  2324.434] (**) Power Button: Applying InputClass "libinput keyboard catchall"
[  2324.434] (II) Using input driver 'libinput' for 'Power Button'
[  2324.434] (**) Power Button: always reports core events
[  2324.434] (**) Option "Device" "/dev/input/event0"
[  2324.434] (**) Option "_source" "server/udev"
[  2324.435] (II) event0  - Power Button: is tagged by udev as: Keyboard
[  2324.435] (II) event0  - Power Button: device is a keyboard
[  2324.435] (II) event0  - Power Button: device removed
[  2324.445] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input0/event0"
[  2324.445] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 8)
[  2324.445] (II) event0  - Power Button: is tagged by udev as: Keyboard
[  2324.445] (II) event0  - Power Button: device is a keyboard
[  2324.446] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=3 (/dev/input/event16)
[  2324.446] (II) No input driver specified, ignoring this device.
[  2324.446] (II) This device may have been added with another device file.
[  2324.447] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=7 (/dev/input/event17)
[  2324.447] (II) No input driver specified, ignoring this device.
[  2324.447] (II) This device may have been added with another device file.
[  2324.447] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=8 (/dev/input/event18)
[  2324.448] (II) No input driver specified, ignoring this device.
[  2324.448] (II) This device may have been added with another device file.
[  2324.448] (II) config/udev: Adding input device HDA Intel HDMI HDMI/DP,pcm=9 (/dev/input/event19)
[  2324.448] (II) No input driver specified, ignoring this device.
[  2324.448] (II) This device may have been added with another device file.
[  2324.449] (II) config/udev: Adding input device Lenovo Lenovo Traditional USB Keyboard (/dev/input/event20)
[  2324.449] (**) Lenovo Lenovo Traditional USB Keyboard: Applying InputClass "evdev keyboard catchall"
[  2324.449] (**) Lenovo Lenovo Traditional USB Keyboard: Applying InputClass "libinput keyboard catchall"
[  2324.449] (II) Using input driver 'libinput' for 'Lenovo Lenovo Traditional USB Keyboard'
[  2324.449] (**) Lenovo Lenovo Traditional USB Keyboard: always reports core events
[  2324.449] (**) Option "Device" "/dev/input/event20"
[  2324.449] (**) Option "_source" "server/udev"
[  2324.451] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: is tagged by udev as: Keyboard
[  2324.451] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: device is a keyboard
[  2324.451] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: device removed
[  2324.461] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-14/3-14:1.0/0003:17EF:6099.0004/input/input21/event20"
[  2324.461] (II) XINPUT: Adding extended input device "Lenovo Lenovo Traditional USB Keyboard" (type: KEYBOARD, id 9)
[  2324.461] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: is tagged by udev as: Keyboard
[  2324.462] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: device is a keyboard
[  2324.463] (II) config/udev: Adding input device Logitech USB Receiver (/dev/input/event2)
[  2324.463] (**) Logitech USB Receiver: Applying InputClass "evdev keyboard catchall"
[  2324.463] (**) Logitech USB Receiver: Applying InputClass "libinput keyboard catchall"
[  2324.463] (II) Using input driver 'libinput' for 'Logitech USB Receiver'
[  2324.463] (**) Logitech USB Receiver: always reports core events
[  2324.463] (**) Option "Device" "/dev/input/event2"
[  2324.463] (**) Option "_source" "server/udev"
[  2324.464] (II) event2  - Logitech USB Receiver: is tagged by udev as: Keyboard
[  2324.464] (II) event2  - Logitech USB Receiver: device is a keyboard
[  2324.464] (II) event2  - Logitech USB Receiver: device removed
[  2324.473] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-6/3-6.4/3-6.4.4/3-6.4.4:1.0/0003:046D:C52B.0001/input/input2/event2"
[  2324.473] (II) XINPUT: Adding extended input device "Logitech USB Receiver" (type: KEYBOARD, id 10)
[  2324.474] (II) event2  - Logitech USB Receiver: is tagged by udev as: Keyboard
[  2324.474] (II) event2  - Logitech USB Receiver: device is a keyboard
[  2324.475] (II) config/udev: Adding input device Logitech USB Receiver Mouse (/dev/input/event3)
[  2324.475] (**) Logitech USB Receiver Mouse: Applying InputClass "evdev pointer catchall"
[  2324.475] (**) Logitech USB Receiver Mouse: Applying InputClass "libinput pointer catchall"
[  2324.475] (II) Using input driver 'libinput' for 'Logitech USB Receiver Mouse'
[  2324.475] (**) Logitech USB Receiver Mouse: always reports core events
[  2324.475] (**) Option "Device" "/dev/input/event3"
[  2324.475] (**) Option "_source" "server/udev"
[  2324.477] (II) event3  - Logitech USB Receiver Mouse: is tagged by udev as: Mouse
[  2324.477] (II) event3  - Logitech USB Receiver Mouse: device is a pointer
[  2324.477] (II) event3  - Logitech USB Receiver Mouse: device removed
[  2324.497] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-6/3-6.4/3-6.4.4/3-6.4.4:1.1/0003:046D:C52B.0002/input/input3/event3"
[  2324.497] (II) XINPUT: Adding extended input device "Logitech USB Receiver Mouse" (type: MOUSE, id 11)
[  2324.497] (**) Option "AccelerationScheme" "none"
[  2324.497] (**) Logitech USB Receiver Mouse: (accel) selected scheme none/0
[  2324.497] (**) Logitech USB Receiver Mouse: (accel) acceleration factor: 2.000
[  2324.497] (**) Logitech USB Receiver Mouse: (accel) acceleration threshold: 4
[  2324.498] (II) event3  - Logitech USB Receiver Mouse: is tagged by udev as: Mouse
[  2324.498] (II) event3  - Logitech USB Receiver Mouse: device is a pointer
[  2324.500] (II) config/udev: Adding input device Logitech USB Receiver Mouse (/dev/input/mouse0)
[  2324.500] (II) No input driver specified, ignoring this device.
[  2324.500] (II) This device may have been added with another device file.
[  2324.501] (II) config/udev: Adding input device Logitech USB Receiver Consumer Control (/dev/input/event4)
[  2324.501] (**) Logitech USB Receiver Consumer Control: Applying InputClass "evdev keyboard catchall"
[  2324.501] (**) Logitech USB Receiver Consumer Control: Applying InputClass "libinput keyboard catchall"
[  2324.501] (II) Using input driver 'libinput' for 'Logitech USB Receiver Consumer Control'
[  2324.501] (**) Logitech USB Receiver Consumer Control: always reports core events
[  2324.501] (**) Option "Device" "/dev/input/event4"
[  2324.501] (**) Option "_source" "server/udev"
[  2324.503] (II) event4  - Logitech USB Receiver Consumer Control: is tagged by udev as: Keyboard
[  2324.503] (II) event4  - Logitech USB Receiver Consumer Control: device is a keyboard
[  2324.503] (II) event4  - Logitech USB Receiver Consumer Control: device removed
[  2324.513] (II) libinput: Logitech USB Receiver Consumer Control: needs a virtual subdevice
[  2324.513] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-6/3-6.4/3-6.4.4/3-6.4.4:1.1/0003:046D:C52B.0002/input/input4/event4"
[  2324.513] (II) XINPUT: Adding extended input device "Logitech USB Receiver Consumer Control" (type: MOUSE, id 12)
[  2324.513] (**) Option "AccelerationScheme" "none"
[  2324.513] (**) Logitech USB Receiver Consumer Control: (accel) selected scheme none/0
[  2324.513] (**) Logitech USB Receiver Consumer Control: (accel) acceleration factor: 2.000
[  2324.513] (**) Logitech USB Receiver Consumer Control: (accel) acceleration threshold: 4
[  2324.514] (II) event4  - Logitech USB Receiver Consumer Control: is tagged by udev as: Keyboard
[  2324.514] (II) event4  - Logitech USB Receiver Consumer Control: device is a keyboard
[  2324.515] (II) config/udev: Adding input device Logitech USB Receiver System Control (/dev/input/event5)
[  2324.515] (**) Logitech USB Receiver System Control: Applying InputClass "evdev keyboard catchall"
[  2324.515] (**) Logitech USB Receiver System Control: Applying InputClass "libinput keyboard catchall"
[  2324.515] (II) Using input driver 'libinput' for 'Logitech USB Receiver System Control'
[  2324.515] (**) Logitech USB Receiver System Control: always reports core events
[  2324.515] (**) Option "Device" "/dev/input/event5"
[  2324.515] (**) Option "_source" "server/udev"
[  2324.517] (II) event5  - Logitech USB Receiver System Control: is tagged by udev as: Keyboard
[  2324.517] (II) event5  - Logitech USB Receiver System Control: device is a keyboard
[  2324.517] (II) event5  - Logitech USB Receiver System Control: device removed
[  2324.529] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-6/3-6.4/3-6.4.4/3-6.4.4:1.1/0003:046D:C52B.0002/input/input5/event5"
[  2324.529] (II) XINPUT: Adding extended input device "Logitech USB Receiver System Control" (type: KEYBOARD, id 13)
[  2324.530] (II) event5  - Logitech USB Receiver System Control: is tagged by udev as: Keyboard
[  2324.530] (II) event5  - Logitech USB Receiver System Control: device is a keyboard
[  2324.531] (II) config/udev: Adding input device HDA Intel PCH Front Mic (/dev/input/event9)
[  2324.531] (II) No input driver specified, ignoring this device.
[  2324.531] (II) This device may have been added with another device file.
[  2324.531] (II) config/udev: Adding input device HDA Intel PCH Rear Mic (/dev/input/event10)
[  2324.531] (II) No input driver specified, ignoring this device.
[  2324.531] (II) This device may have been added with another device file.
[  2324.532] (II) config/udev: Adding input device HDA Intel PCH Line (/dev/input/event11)
[  2324.532] (II) No input driver specified, ignoring this device.
[  2324.532] (II) This device may have been added with another device file.
[  2324.532] (II) config/udev: Adding input device HDA Intel PCH Line Out Front (/dev/input/event12)
[  2324.532] (II) No input driver specified, ignoring this device.
[  2324.532] (II) This device may have been added with another device file.
[  2324.533] (II) config/udev: Adding input device HDA Intel PCH Line Out Surround (/dev/input/event13)
[  2324.533] (II) No input driver specified, ignoring this device.
[  2324.533] (II) This device may have been added with another device file.
[  2324.533] (II) config/udev: Adding input device HDA Intel PCH Line Out CLFE (/dev/input/event14)
[  2324.533] (II) No input driver specified, ignoring this device.
[  2324.533] (II) This device may have been added with another device file.
[  2324.534] (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event15)
[  2324.534] (II) No input driver specified, ignoring this device.
[  2324.534] (II) This device may have been added with another device file.
[  2324.534] (II) config/udev: Adding input device HDA Digital PCBeep (/dev/input/event8)
[  2324.534] (II) No input driver specified, ignoring this device.
[  2324.534] (II) This device may have been added with another device file.
[  2324.535] (II) config/udev: Adding input device PC Speaker (/dev/input/event6)
[  2324.535] (II) No input driver specified, ignoring this device.
[  2324.535] (II) This device may have been added with another device file.
[  2324.580] (**) Logitech USB Receiver Consumer Control: Applying InputClass "evdev keyboard catchall"
[  2324.580] (**) Logitech USB Receiver Consumer Control: Applying InputClass "libinput keyboard catchall"
[  2324.580] (II) Using input driver 'libinput' for 'Logitech USB Receiver Consumer Control'
[  2324.580] (**) Logitech USB Receiver Consumer Control: always reports core events
[  2324.580] (**) Option "Device" "/dev/input/event4"
[  2324.580] (**) Option "_source" "_driver/libinput"
[  2324.580] (II) libinput: Logitech USB Receiver Consumer Control: is a virtual subdevice
[  2324.580] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:14.0/usb3/3-6/3-6.4/3-6.4.4/3-6.4.4:1.1/0003:046D:C52B.0002/input/input4/event4"
[  2324.580] (II) XINPUT: Adding extended input device "Logitech USB Receiver Consumer Control" (type: KEYBOARD, id 14)
[  2324.581] (EE) Failed to open authorization file "/var/run/sddm/{d521c2ca-09b9-433d-8816-a4ff1e2abf42}": No such file or directory
[  2334.165] (II) intel(0): resizing framebuffer to 1920x1200
[  2334.180] (II) intel(0): switch to mode 1920x1200@60.0 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection none
[  2340.793] (II) event1  - Power Button: device removed
[  2340.803] (II) event7  - Video Bus: device removed
[  2340.826] (II) event0  - Power Button: device removed
[  2340.839] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: device removed
[  2340.849] (II) event2  - Logitech USB Receiver: device removed
[  2340.864] (II) event3  - Logitech USB Receiver Mouse: device removed
[  2340.893] (II) event5  - Logitech USB Receiver System Control: device removed
[  2340.909] (II) event4  - Logitech USB Receiver Consumer Control: device removed
[  2340.921] (II) AIGLX: Suspending AIGLX clients for VT switch
[  2351.156] (II) AIGLX: Resuming AIGLX clients after VT switch
[  2351.156] (II) intel(0): switch to mode 1920x1200@60.0 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection none
[  2351.227] (II) event1  - Power Button: is tagged by udev as: Keyboard
[  2351.227] (II) event1  - Power Button: device is a keyboard
[  2351.230] (II) event7  - Video Bus: is tagged by udev as: Keyboard
[  2351.230] (II) event7  - Video Bus: device is a keyboard
[  2351.232] (II) event0  - Power Button: is tagged by udev as: Keyboard
[  2351.232] (II) event0  - Power Button: device is a keyboard
[  2351.234] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: is tagged by udev as: Keyboard
[  2351.234] (II) event20 - Lenovo Lenovo Traditional USB Keyboard: device is a keyboard
[  2351.237] (II) event2  - Logitech USB Receiver: is tagged by udev as: Keyboard
[  2351.237] (II) event2  - Logitech USB Receiver: device is a keyboard
[  2351.240] (II) event3  - Logitech USB Receiver Mouse: is tagged by udev as: Mouse
[  2351.240] (II) event3  - Logitech USB Receiver Mouse: device is a pointer
[  2351.243] (II) event4  - Logitech USB Receiver Consumer Control: is tagged by udev as: Keyboard
[  2351.243] (II) event4  - Logitech USB Receiver Consumer Control: device is a keyboard
[  2351.245] (II) event5  - Logitech USB Receiver System Control: is tagged by udev as: Keyboard
[  2351.246] (II) event5  - Logitech USB Receiver System Control: device is a keyboard

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NeddySeagoon
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PostPosted: Tue Feb 11, 2020 7:05 pm    Post subject: Reply with quote

pygoscelis,

Either your display lies about its capabilities in the EDID data reported by the display, or a piece of your Dual Link DVI system has failed and your DVI link to the display is detected as single link.
Code:
Modeline "1920x1200"x60.0
is as good as it gets for single link DVI.

Code:
[  2324.315] (II) intel(0): Monitor name: DELL U2713HM
I used to have one of those but my son kept asking me if I was going to upgrade it. :)

Code:
[  2324.315] (II) intel(0): h_active: 2560  h_sync: 2608  h_sync_end 2640 h_blank_end 2720 h_border: 0
[  2324.315] (II) intel(0): v_active: 1440  v_sync: 1443  v_sync_end 1448 v_blanking: 1481 v_border: 0

The display is advertising 2560x1440, so that's OK.

Code:
[  2324.333] (WW) intel(0): Option "PreferredMode" is not used

The intel driver does not understand PreferredMode.

Check your video cable.
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dmpogo
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PostPosted: Tue Feb 11, 2020 7:13 pm    Post subject: Reply with quote

What I see is

[ 2324.332] (II) intel(0): Output DP1 disconnected
[ 2324.332] (II) intel(0): Output HDMI1 connected
[ 2324.332] (II) intel(0): Output HDMI2 disconnected
[ 2324.332] (II) intel(0): Output HDMI3 disconnected
[ 2324.332] (II) intel(0): Output VGA1 disconnected
[ 2324.332] (II) intel(0): Output VIRTUAL1 disconnected
[ 2324.332] (II) intel(0): Using exact sizes for initial modes
[ 2324.332] (II) intel(0): Output HDMI1 using initial mode 1920x1080 +0+0

HDMI (classical) does not support modes higher than 1920x1080. You should connect it via DP1 (display port), or if both cables are connected, perhaps switch input on the monitor ?
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PostPosted: Tue Feb 11, 2020 7:16 pm    Post subject: Reply with quote

dmpogo,

Well caught!
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Ionen
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PostPosted: Tue Feb 11, 2020 7:32 pm    Post subject: Reply with quote

Edit: nevermind

Last edited by Ionen on Tue Feb 11, 2020 8:20 pm; edited 1 time in total
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PostPosted: Tue Feb 11, 2020 7:36 pm    Post subject: Reply with quote

Hi dmpogo,

this is interesting, Why am I able to switch the resolution manually with xrandr then?

Code:

xrandr --newmode "2560x1440_55.00"  284.00  2560 2744 3016 3472  1440 1443 1448 1489 -hsync +vsync
xrandr --addmode HDMI1 2560x1440_55.00
xrandr --output HDMI1 --mode 2560x1440_55.00


This script works.

I don't have a DP cable. I will get one and see what happens. Thanks!
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PostPosted: Tue Feb 11, 2020 7:49 pm    Post subject: Reply with quote

Scratch my previous post, your monitor is HDMI 1.3 apparently and looking at the wiki it can do 2560x1440@60Hz
Quote:
HDMI 1.3 was released on June 22, 2006, and increased the maximum TMDS clock to 340 MHz (10.2 Gbit/s).[6][38][96] Like previous versions, it uses 8b/10b encoding, giving it a maximum video bandwidth of 8.16 Gbit/s (1920 × 1080 at 120 Hz or 2560 × 1440 at 60 Hz).
Maybe it's some variation of the mode that Xorg is trying to set but can't. DP may work better either way, this is borderline.

Edit: from google I see people having issue setting this mode through HDMI on this monitor (even on windows), but are able to use the resolution at lower refresh rate like 30Hz (so 55 may borderline work, but X is likely want 60 and not looking at alternatives)
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PostPosted: Tue Feb 11, 2020 8:00 pm    Post subject: Reply with quote

I'd just put the xrandr command in .xinitrc, if it were me. :)
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PostPosted: Tue Feb 11, 2020 8:06 pm    Post subject: Reply with quote

Well, from the sound of it also means being stuck at 55Hz over 60Hz, I mean it's not a "huge" difference but I'd hate it :)
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PostPosted: Tue Feb 11, 2020 8:13 pm    Post subject: Reply with quote

Ionen wrote:
Scratch my previous post, your monitor is HDMI 1.3 apparently and looking at the wiki it can do 2560x1440@60Hz
Quote:
HDMI 1.3 was released on June 22, 2006, and increased the maximum TMDS clock to 340 MHz (10.2 Gbit/s).[6][38][96] Like previous versions, it uses 8b/10b encoding, giving it a maximum video bandwidth of 8.16 Gbit/s (1920 × 1080 at 120 Hz or 2560 × 1440 at 60 Hz).
Maybe it's some variation of the mode that Xorg is trying to set but can't. DP may work better either way, this is borderline.

Edit: from google I see people having issue setting this mode through HDMI on this monitor (even on windows), but are able to use the resolution at lower refresh rate like 30Hz (so 55 may borderline work, but X is likely want 60 and not looking at alternatives)


There are few variables here

1) I don't see EDID advertising anything higher than that standard HDMI resolution, so first of all autodetect of the mode will not work.

To be exact, I am not sure whether
Code:

 [  2324.316] (II) intel(0): EDID (in hex):
[  2324.316] (II) intel(0):    00ffffffffffff0010ac7e404c353737
[  2324.316] (II) intel(0):    23170103803c2278ea4bb5a7564ba325
[  2324.316] (II) intel(0):    0a5054a54b008100b300d100714fa940
[  2324.316] (II) intel(0):    8180d1c00101565e00a0a0a029503020
[  2324.316] (II) intel(0):    350055502100001a000000ff00374a4e
[  2324.316] (II) intel(0):    59353338543737354c0a000000fc0044
[  2324.316] (II) intel(0):    454c4c205532373133484d0a000000fd
[  2324.316] (II) intel(0):    0031561d711c000a20202020202000b3
[  2324.316] (II) intel(0): Printing probed modes for output HDMI1
[  2324.316] (II) intel(0): Modeline "1920x1200"x60.0  154.00  1920 1968 2000 2080  1200 1203 1209 1235 +hsync -vsync (74.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1920x1080"x60.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 -hsync -vsync (67.5 kHz e)
[  2324.316] (II) intel(0): Modeline "1600x1200"x60.0  162.00  1600 1664 1856 2160  1200 1201 1204 1250 +hsync +vsync (75.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1680x1050"x60.0  119.00  1680 1728 1760 1840  1050 1053 1059 1080 +hsync -vsync (64.7 kHz e)
[  2324.316] (II) intel(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1280x800"x60.0   71.00  1280 1328 1360 1440  800 803 809 823 +hsync -vsync (49.3 kHz e)
[  2324.316] (II) intel(0): Modeline "1152x864"x75.0  108.00  1152 1216 1344 1600  864 865 868 900 +hsync +vsync (67.5 kHz e)
[  2324.316] (II) intel(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[  2324.316] (II) intel(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[  2324.316] (II) intel(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[  2324.316] (II) intel(0): Modeline "800x600"x60.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[  2324.316] (II) intel(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[  2324.316] (II) intel(0): Modeline "640x480"x60.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[  2324.316] (II) intel(0): Modeline "720x400"x70.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)


means monitor did not advertise, or intel driver did not try to probe. Anyway, autonegotiation on HDMI1 does not see an enhanced mode.

Maybe you can switch manually to non-advertised mode.


2) Result also depends on what level HDMI is supported on computer side.

3) And after all, the final result - on quality of the cable (that will propbably manifest itself in instabilities, rather than refusing to enter the mode)
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dmpogo
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PostPosted: Tue Feb 11, 2020 8:27 pm    Post subject: Reply with quote

pygoscelis wrote:


I don't have a DP cable. I will get one and see what happens. Thanks!


Buy it if you have (mini or full) displayport or USB-C with alternative mode as an output on your computer.
Modern laptops will have it. Then you'll have as direct digital connection to monitor without any conversions as it can be.
On amazon it should be around 10-15 USD


Last edited by dmpogo on Tue Feb 11, 2020 8:43 pm; edited 1 time in total
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PostPosted: Tue Feb 11, 2020 8:28 pm    Post subject: Reply with quote

You're right, my monitor does something similar by not advertising the 75Hz mode I want to use (it's a oddball 75Hz monitor, but edid defaults to 1920x1080@60Hz), so I just added the Modeline to my xorg.conf and it works. Like:
Code:
Section "Monitor"
        Identifier      "AUS VG245"
        Modeline        "1920x1080"     220.64 1920 2056 2264 2608 1080 1081 1084 1128 -hsync +vsync
        Modeline        "1280x720"       95.65 1280 1352 1488 1696  720  721  724  752 -hsync +vsync
EndSection
And I told my nvidia drivers to also ignore edid/vesa modes and use this mode by default, so it's the only two available modes I have now shown by xrandr :)

Hardware/cable would need to be pretty old not to support HDMI 1.3 though (but who knows if you use old cables you've had laying around for over a decade).
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PostPosted: Tue Feb 11, 2020 8:30 pm    Post subject: Reply with quote

Ionen wrote:
You're right, my monitor does something similar by not advertising the 75Hz mode I want to use (it's a oddball 75Hz monitor, but edid defaults to 1920x1080@60Hz), so I just added the Modeline to my xorg.conf and it works. Like:
Code:
Section "Monitor"
        Identifier      "AUS VG245"
        Modeline        "1920x1080"     220.64 1920 2056 2264 2608 1080 1081 1084 1128 -hsync +vsync
        Modeline        "1280x720"       95.65 1280 1352 1488 1696  720  721  724  752 -hsync +vsync
EndSection
And I told my nvidia drivers to also ignore edid/vesa modes and use this mode by default, so it's the only two available modes I have now shown by xrandr :)

Hardware/cable would need to be pretty old not to support HDMI 1.3 though (but who knows if you use old cables you've had laying around for over a decade).



You can buy crappy cable even now if you want :)
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PostPosted: Tue Feb 11, 2020 8:33 pm    Post subject: Reply with quote

pygoscelis,

You can try writing a modeline to force Xorg to do what you want.
Code:
modeline "2560x1440@60"  241.5 2560 2608 2640 2720 1440 1443 1448 1481


Then tell Xorg to use
Code:
modes "2560x1440@60"


dmpogo,

<nit> Its a bit naughty to redefine the predefined modes that way.
The predefinded modes can't then be used on other displays. </nit>
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Last edited by NeddySeagoon on Tue Feb 11, 2020 8:36 pm; edited 1 time in total
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PostPosted: Tue Feb 11, 2020 8:34 pm    Post subject: Reply with quote

dmpogo wrote:
You can buy crappy cable even now if you want :)
Good point :)
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PostPosted: Tue Feb 11, 2020 8:36 pm    Post subject: Reply with quote

Ionen wrote:
You're right, my monitor does something similar by not advertising the 75Hz mode I want to use (it's a oddball 75Hz monitor, but edid defaults to 1920x1080@60Hz), so I just added the Modeline to my xorg.conf and it works. Like:
Code:
Section "Monitor"
        Identifier      "AUS VG245"
        Modeline        "1920x1080"     220.64 1920 2056 2264 2608 1080 1081 1084 1128 -hsync +vsync
        Modeline        "1280x720"       95.65 1280 1352 1488 1696  720  721  724  752 -hsync +vsync
EndSection
And I told my nvidia drivers to also ignore edid/vesa modes and use this mode by default, so it's the only two available modes I have now shown by xrandr :)

Hardware/cable would need to be pretty old not to support HDMI 1.3 though (but who knows if you use old cables you've had laying around for over a decade).



On VGA analog monitors one could write any custom mode you wish, and it would work, probably with screwed up picture ( unless monitor blows if it is out of specs :) ). Not sure now - can be that you have to hit exactly the mode monitor knows about ( ?? )
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PostPosted: Tue Feb 11, 2020 8:41 pm    Post subject: Reply with quote

NeddySeagoon wrote:


dmpogo,

<nit> Its a bit naughty to redefine the predefined modes that way.
The predefinded modes can't then be used on other displays. </nit>


I wrote plenty of custom modes in the days of analog monitors :) Was not satisfied with predefined. A bit higher refresh,
a bit narrower boundaries :) Never tried it with LCDs panels, though.
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PostPosted: Tue Feb 11, 2020 8:52 pm    Post subject: Reply with quote

dmpogo,

Me too. :)

I didn't ever kill one but I got some very odd visual artefacts from time to time.
Digital displays don't have quite the same flexibility because you can't squeeze a few more pixels in.
As long as the pixel count is right, the rest can vary a little.

A digital display doesn't need the flyback blanking because there is no electron beam flyback and settling.

When you don't use an integer divisor to map the pixel buffer to a digital display, edges can look a bit odd.
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PostPosted: Tue Feb 11, 2020 8:58 pm    Post subject: Reply with quote

dmpogo wrote:
On VGA analog monitors one could write any custom mode you wish, and it would work, probably with screwed up picture ( unless monitor blows if it is out of specs :) ). Not sure now - can be that you have to hit exactly the mode monitor knows about ( ?? )
Been a while but looking at my shell history I just used "gtf 1920 1080 75 -x" provided by xorg. A few oddball modes I added were working I recall (as long as within the monitor specs, but I removed them because I never use them), that 1280x720@75Hz works too and it's definitely not known to the monitor, or at least not in the edid. I like looking at this clean xrandr output with only 2 modes :)
Code:
HDMI-0 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 530mm x 300mm
   1920x1080     75.00*+
   1280x720      75.00 
Edit: there used to be modes like 800x600 set by the edid and it stretched the picture rather than add black bars.. like no.. I'm never, ever, using this -- if something tries to set that mode, please fail to, I'll leave that to my old 4:3 CRT if need be. I don't really use 1280x720 either actually, it's more like a zoom button. For things like old games that can't do higher I rather play at native res in a window, or another monitor.
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