Xorg resolution 2560x1600

Message

skyPhyr · Post by **skyPhyr** » Thu Feb 24, 2005 5:04 pm

Hi All,

I've got an Apple 30" monitor which is 2560x1600, but even though I've set my xorg.conf I'm having no luck.

I have this for my modes

Section "Modes"
Identifier "Snazzy"
Modeline "2560x1600" 336.15 2560 2752 3032 3504 1600 1601 1604 1654
EndSection

with the relevant usemodes and modes statements, but it still doen't appear to get up to full res.

Cheers,

Alan.

psychomunky · Post by **psychomunky** » Thu Feb 24, 2005 5:32 pm

Are you sure your video card can handle that resolution?? That is a pretty high resolution for most cards that I know of. If your video card does support it, what kind is it and what driver are you using??

hvengel · Post by **hvengel** » Thu Feb 24, 2005 11:30 pm

My understanding is that to use that resolution with that monitor you must use two DVI connectors and two video cards or a card with dual DVI outputs. Is that right - does it have two DVI inputs? Each video output would be setup to cover half of the display. So each would be setup for 1280x1600. You would then use Xinerama to make the two screens be one display. If you have a video card that will do this than it should be a very nice setup. With current xorg or XFree drivers you will not have full 3d hardware support with Xinerama. But this should be a great 2d setup.

Edit

Just wanted to add that I am green with envy.

End Edit

skyPhyr · Post by **skyPhyr** » Fri Feb 25, 2005 10:57 am

Hi Guys,

The video card is an nvidia quadro FX3400. The monitor uses a single DVI input. It's working at correct resolution under XP, but for some reason it's not under X. The screen's one piece and the 4:3 res is just stretched across the screen which looks approx 16:9ish - though I haven't checked the exact specs.

Cheers,

Alan.

hvengel · Post by **hvengel** » Fri Feb 25, 2005 4:33 pm

Found this by googling:

"However the standard DVI interface has enough pins for two TMDS links and there are both displays and cards with a single or dual TMDS implemented (12 or 24 pins). A dual link DVI interface has double the bandwidth and therefore a maximum resolution of 2048 x 1536."

The above was for a 60 Hz refresh rate. So the max resolution for a dual TMDS DVI interface at a 60 Hz refresh rate is 2048 x 1536. This is a hardware bandwidth limit. Now this is fairly close to the monitor resolution of 2560 x 1600 and perhaps this is what Windows is sending to the monitor? If Windows is actualy sending 2560 x 1600 to the monitor than it must be doing this a refresh rate lower than 60 Hz. The X drivers may have a lower max resolution than the Windows driver or may not support the lower refresh rates. Have you tried setting your modeline for lower refresh rates? My calculations indicate that the fastest refresh rate that will support that resolution is 46 Hz. gtf 2560 1600 46 gives the following modeline:

# 2560x1600 @ 46.00 Hz (GTF) hsync: 75.58 kHz; pclk: 261.20 MHz
Modeline "2560x1600_46.00" 261.20 2560 2728 3008 3456 1600 1601 1604 1643 -HSync +Vsync

This is significanly different from yours which is very close to what gtf gives for 60 Hz.

# 2560x1600 @ 60.00 Hz (GTF) hsync: 99.36 kHz; pclk: 348.16 MHz
Modeline "2560x1600_60.00" 348.16 2560 2752 3032 3504 1600 1601 1604 1656 -HSync +Vsync

skyPhyr · Post by **skyPhyr** » Thu Mar 10, 2005 10:27 pm

Hi,

Sorry for the delay. I managed to get it working. I'll post the xorg.conf when I'm back on those machines. Though it's pretty much just a copy paste from the modes section someone had for the same display with xfree86 I managed to google down.

Cheers,

Alan.

skyPhyr · Post by **skyPhyr** » Tue Jul 05, 2005 9:53 am

Sorry for the delay ppl.

Code: Select all

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
	RgbPath      "/usr/lib/X11/rgb"
	ModulePath   "/usr/lib/modules"
	ModulePath   "/lib/modules"
	FontPath     "/usr/share/fonts/misc/"
	FontPath     "/usr/share/fonts/TTF/"
	FontPath     "/usr/share/fonts/Type1/"
	FontPath     "/usr/share/fonts/CID/"
	FontPath     "/usr/share/fonts/75dpi/"
	FontPath     "/usr/share/fonts/100dpi/"
EndSection

Section "Module"
	Load  "extmod"
	Load  "dri"
	Load  "dbe"
	Load  "record"
	Load  "xtrap"
	Load  "glx"
	Load  "type1"
	Load  "freetype"
EndSection

Section "DRI"
	Group "video"
	Mode 0666
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbLayout" "gb"
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/mouse"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
  ModelName    "Cinema HD Display 30"
  VendorName   "Apple"
  UseModes     "Modes[0]"
  VertRefresh  40-75
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "DigitalVibrance"    	# <i>
        #Option     "NoFlip"             	# [<bool>]
        #Option     "Dac8Bit"            	# [<bool>]
        #Option     "NoLogo"             	# [<bool>]
        #Option     "UBB"                	# [<bool>]
        #Option     "Stereo"             	# <i>
        #Option     "SWcursor"           	# [<bool>]
        #Option     "HWcursor"           	# [<bool>]
        #Option     "VideoKey"           	# <i>
        #Option     "NvAGP"              	# <i>
        #Option     "IgnoreEDID"         	# [<bool>]
        #Option     "NoDDC"              	# [<bool>]
        #Option     "ConnectedMonitor"   	# <str>
        #Option     "ConnectedMonitors"  	# <str>
        #Option     "TVStandard"         	# <str>
        #Option     "TVOutFormat"        	# <str>
        #Option     "RenderAccel"        	# [<bool>]
        #Option     "CursorShadow"       	# [<bool>]
        #Option     "CursorShadowAlpha"  	# <i>
        #Option     "CursorShadowXOffset" 	# <i>
        #Option     "CursorShadowYOffset" 	# <i>
        #Option     "UseEdidFreqs"       	# [<bool>]
        #Option     "FlatPanelProperties" 	# <str>
        #Option     "TwinView"           	# [<bool>]
        #Option     "TwinViewOrientation" 	# <str>
        #Option     "SecondMonitorHorizSync" 	# <str>
        #Option     "SecondMonitorVertRefresh" 	# <str>
        #Option     "MetaModes"          	# <str>
        #Option     "UseInt10Module"     	# [<bool>]
        #Option     "NoTwinViewXineramaInfo" 	# [<bool>]
        #Option     "NoRenderExtension"  	# [<bool>]
        #Option     "Overlay"            	# [<bool>]
        #Option     "CIOverlay"          	# [<bool>]
        #Option     "ForceEmulatedOverlay" 	# [<bool>]
        #Option     "TransparentIndex"   	# <i>
        #Option     "OverlayDefaultVisual" 	# [<bool>]
        #Option     "NvEmulate"          	# <i>
        #Option     "NoBandWidthTest"    	# [<bool>]
        #Option     "CustomEDID-CRT-0"   	# <str>
        #Option     "CustomEDID-CRT-1"   	# <str>
        #Option     "CustomEDID-DFP-0"   	# <str>
        #Option     "CustomEDID-DFP-1"   	# <str>
        #Option     "CustomEDID-TV-0"    	# <str>
        #Option     "CustomEDID-TV-1"    	# <str>
        #Option     "TVOverScan"         	# <f>
        #Option     "IgnoreDisplayDevices" 	# <str>
        #Option     "MultisampleCompatibility" 	# [<bool>]
        #Option     "RegistryDwords"     	# <str>
        #Option     "RegistryBinary"     	# <str>
        #Option     "NoPowerConnectorCheck" 	# [<bool>]
        #Option     "AllowDFPStereo"     	# [<bool>]
        #Option     "XvMCUsesTextures"   	# [<bool>]
        #Option     "HorizSync"          	# <str>
        #Option     "VertRefresh"        	# <str>
        #Option     "AllowGLXWithComposite" 	# [<bool>]
  Option       "UseEdidFreqs" "off"
	Identifier  "Card0"
	Driver      "nvidia"
	VendorName  "nVidia Corporation"
	BoardName   "Unknown Board"
	BusID       "PCI:5:0:0"
EndSection

Section "Modes"
  Identifier   "Modes[0]"
#xmode -x 2560 -y 1600  -r 60
#96kHz hsync
#58Hz vrefresh
Modeline "2560x1600" 336.15 2560 2752 3032 3504 1600 1601 1604 1654
#xmode -x 1280 -y 800 -r 60
#48
#58
Modeline "1280x800" 80.58 1280 1344 1480 1680 800 801 804 827
# from EDID capabilities of monitor
# - seems to be valid
#Modeline "2560x1600" 268    2560 2608 2640 2720 1600 1603 1609 1646
# from EDID capabilities of monitor
Modeline "1280x800"   71    1280 1328 1360 1440  800  803  809  823
#  Modeline 	"1920x1200" 204.39 1920 2056 2264 2608 1200 1201 1204 1244
#  Modeline 	"1600x1000" 127.62 1600 1696 1864 2128 1000 1001 1004 1034
#  Modeline 	"1600x1000" 164.46 1600 1704 1880 2160 1000 1001 1004 1043
#  Modeline 	"1229x768" 95.43 1232 1304 1432 1632 768 769 772 801
#  Modeline 	"960x600" 57.03 960 1008 1104 1248 600 601 604 626
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	DefaultDepth 24
  SubSection "Display"
    Depth      15
    Modes      "2560x1600" "1280x800"
#   Modes      "1920x1200" "1600x1000" "1229x768" "960x600" 
  EndSubSection
  SubSection "Display"
    Depth      16
    Modes      "2560x1600" "1280x800"
#   Modes      "1920x1200" "1600x1000" "1229x768" "960x600" 
  EndSubSection
  SubSection "Display"
    Depth      24
    Modes      "2560x1600" "1280x800"
#   Modes      "1920x1200" "1600x1000" "1229x768" "960x600" 
  EndSubSection
  SubSection "Display"
    Depth      32
    Modes      "2560x1600" "1280x800"
#   Modes      "1920x1200" "1600x1000" "1229x768" "960x600" 
  EndSubSection
  SubSection "Display"
    Depth      8
    Modes      "2560x1600" "1280x800"
#   Modes      "1920x1200" "1600x1000" "1229x768" "960x600" 
  EndSubSection
EndSection

Cheers,

Alan.