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silent_Walker
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PostPosted: Thu Sep 27, 2012 8:49 pm    Post subject: startx can't find "screens" Reply with quote

I have just successfully emerged and configured my ~/.xinitrc for compiz-fusion.

However after I run the command for startx a black screen appears with a white "_" in the left corner and then flashes back to the CLI.

I get the following output:
Fatal error:
no screens found.

I have a radeon HD 4250. My kernel settings

Device Drivers --->
Generic Driver Options --->
(/sbin/hotplug) path to uevent helper
[] Maintain a devtmpfs filesystem to mount at /dev
[ ] Automount devtmpfs at /dev, after the kernel mounted the rootfs
[] Select only drivers that don't need compile-time external firmware
[] Prevent firmware from being built
-*- Userspace firmware loading support
[*] Include in-kernel firmware blobs in kernel binary
(radeon/R600_rlc.bin radeon/R700_rlc.bin) External firmware blobs to build into the kernel binary
(/lib/firmware) Firmware blobs root directory
[ ] Driver Core verbose debug messages
[ ] Managed device resources verbose debug messages
Graphics support --->
<> /dev/agpgart (AGP Support) --->
--- /dev/agpgart (AGP Support)
<> AMD Opteron/Athlon64 on-CPU GART support
< > Intel 440LX/BX/GX, I8xx and E7x05 chipset support
< > SiS chipset support
< > VIA chipset support
-*- VGA Arbitration
(2) Maximum number of GPUs
[ ] Laptop Hybrid Graphics - GPU switching support
<*> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) --->
--- Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
< > 3dfx Banshee/Voodoo3+ (NEW)
< > ATI Rage 128 (NEW)
<*> ATI Radeon
[*] Enable modesetting on radeon by default - NEW DRIVER
< > Matrox g200/g400 (NEW)
< > SiS video cards (NEW)
< > Via unichrome video cards (NEW)
< > Savage video cards (NEW)
< > DRM driver for VMware Virtual GPU (NEW)
< > Intel GMA500 Stub Driver
<*> Lowlevel video output switch controls
<*> Support for frame buffer devices --->
--- Support for frame buffer devices
[*] Enable firmware EDID
[ ] Framebuffer foreign endianness support --->
[*] Enable Video Mode Handling Helpers
[*] Enable Tile Blitting Support
*** Frame buffer hardware drivers ***
< > Cirrus Logic support
< > Permedia2 support
< > CyberPro 2000/2010/5000 support
< > Arc Monochrome LCD board support
[ ] Asiliant (Chips) 69000 display support
[ ] IMS Twin Turbo display support
< > VGA 16-color graphics support
< > Userspace VESA VGA graphics support
[ ] VESA VGA graphics support
< > N411 Apollo/Hecuba devkit support
< > Hercules mono graphics support
< > Epson S1D13XXX framebuffer support
< > nVidia Framebuffer Support
< > nVidia Riva support
< > Intel LE80578 (Vermilion) support
< > Matrox acceleration
< > ATI Radeon display support
< > ATI Rage128 display support
< > ATI Mach64 display support
< > S3 Trio/Virge support
< > S3 Savage support
< > SiS/XGI display support
< > VIA UniChrome (Pro) and Chrome9 display support
< > NeoMagic display support
< > IMG Kyro support
< > 3Dfx Banshee/Voodoo3/Voodoo5 display support
< > 3Dfx Voodoo Graphics (sst1) support
< > VIA VT8623 support
< > Trident/CyberXXX/CyberBlade support
< > ARK 2000PV support
< > Permedia3 support (EXPERIMENTAL)
< > Fujitsu carmine frame buffer support
[ ] AMD Geode family framebuffer support (EXPERIMENTAL)
< > SMSC UFX6000/7000 USB Framebuffer support
< > Displaylink USB Framebuffer support
< > Virtual Frame Buffer support (ONLY FOR TESTING!)
< > E-Ink Metronome/8track controller support
< > Fujitsu MB862xx GDC support
< > E-Ink Broadsheet/Epson S1D13521 controller support
[] Backlight & LCD device support --->
--- Backlight & LCD device support
<> Lowlevel LCD controls
< > Platform LCD controls
-*- Lowlevel Backlight controls
< > Generic (aka Sharp Corgi) Backlight Driver
< > Frontpath ProGear Backlight Driver
< > Apple Backlight Driver
< > Tabletkiosk Sahara Touch-iT Backlight Driver
< > Backlight Driver for ADP8860/ADP8861/ADP8863 using WLED
< > Backlight Driver for ADP8870 using WLED
Display device support --->
<*> Display panel/monitor support
*** Display hardware drivers ***
Console display driver support --->
-*- VGA text console
[] Enable Scrollback Buffer in System RAM
(256) Scrollback Buffer Size (in KB)
-*- Framebuffer Console support
-*- Map the console to the primary display device
[ ] Framebuffer Console Rotation
[ ] Select compiled-in fonts
[] Bootup logo --->
--- Bootup logo
[ ] Standard black and white Linux logo
[ ] Standard 16-color Linux logo
[] Standard 224-color Linux logo
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Last edited by silent_Walker on Mon Oct 08, 2012 10:05 pm; edited 2 times in total
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pidsley
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PostPosted: Thu Sep 27, 2012 8:56 pm    Post subject: Re: startx can't find "screens" Reply with quote

silent_Walker wrote:
I have just successfully emerged and configured my ~/.xinitrc for compiz-fusion.

Have you been able to run any window manager in X? Did you try the recommended twm, xclock, and xterm to make sure X was working when you built it?

Please emerge wgetpaste and use it to post a link to your /var/log/Xorg.0.log file.

Code:
emerge wgetpaste
wgetpaste /var/log/Xorg.0.log

and then post the link you get from wgetpaste.

If you have a file at ~/.xsession-errors please post a link to that file too.
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silent_Walker
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PostPosted: Sat Sep 29, 2012 10:47 pm    Post subject: Reply with quote

Sorry for the long wait for a reply, forums.gentoo is having blackouts where I am at.

http://bpaste.net/show/48397/

lines 16-25 and 413-420 are interesting.
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VoidMage
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PostPosted: Sun Sep 30, 2012 7:12 am    Post subject: Reply with quote

Unrelated, but perhaps important - those devtmpfs options (at least first of them) should be on.

What does 'emerge -1pv libdrm mesa' print ?
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pidsley
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PostPosted: Sun Sep 30, 2012 12:13 pm    Post subject: Re: startx can't find "screens" Reply with quote

pidsley wrote:

Have you been able to run any window manager in X? Did you try the recommended twm, xclock, and xterm to make sure X was working when you built it?


You're also right that the errors about KMS are interesting. Did you follow the X setup instructions in the Handbook to enable KMS? Does KMS appear to be enabled when you boot?
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silent_Walker
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PostPosted: Sun Sep 30, 2012 1:04 pm    Post subject: Reply with quote

Overlooking the X-org guide I forgot step 2.6 so I fixed that and re-emrged x but still get cannot find screens
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Last edited by silent_Walker on Sun Oct 07, 2012 2:01 am; edited 2 times in total
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silent_Walker
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PostPosted: Sun Sep 30, 2012 1:11 pm    Post subject: Reply with quote

my new x log
http://bpaste.net/show/48467/
and output of

'emerge -1pv libdrm mesa'

x11-libs/libdrm/2.4.39 USE="libkms" VIDEO_CARDS=" radeon"
media-libs/mesa-9_pre20120831-r1 USE="classic eql gallium llvm nptl shared-glapi VIDEO_CARDS="radeon"

KMS does start at boot.
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VoidMage
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PostPosted: Sun Sep 30, 2012 8:14 pm    Post subject: Reply with quote

As you've upgraded the xserver, I need to ask: did you rebuild the xorg modules ?

Also, if your udev is recent enough and those devtmpfs kernel options aren't on, many thigs tend to break.
You might want to check dmesg regarding proper drm initialization (can't help you much there - personally I use radeon as a module, not builtin).
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silent_Walker
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PostPosted: Sun Oct 07, 2012 1:59 am    Post subject: Reply with quote

I tried Radeon as a module and still get no screens found, however looking in my first log, the ati and radeon module were able to load and so was KMS. KMS then failed. In my second log ati, radeon and kms did not load. Looking at the xorg guide yet again, I found that I have not emerged radeon-ucode and enabled the options, upon doing that and rebuilding the modules startx works flawlessly.

Thanks VoidMage and pidsley

--edit--

nvm, now in http://bpaste.net/show/50050


ati is still not being found by startx.
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Last edited by silent_Walker on Sat Oct 13, 2012 3:20 pm; edited 1 time in total
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silent_Walker
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PostPosted: Tue Oct 09, 2012 12:09 am    Post subject: Reply with quote

Upon booting up the machine, I see a quick line that appears for a second saying "Failed to load firmware: R700_rlc.bin"and I think the next line says disabling GPU.

I was able to try and get this kernel to work with another distro but no dice
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PostPosted: Tue Oct 09, 2012 12:28 am    Post subject: Reply with quote

silent_Walker,

You might want to try this configuration outline...

http://forums.gentoo.org/viewtopic-p-7101452.html#7101452
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Hu
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PostPosted: Tue Oct 09, 2012 1:43 am    Post subject: Reply with quote

silent_Walker wrote:
Upon booting up the machine, I see a quick line that appears for a second saying "Failed to load firmware: R700_rlc.bin"and I think the next line says disabling GPU.
If your graphics driver is built in, then it will attempt to load firmware before the filesystem containing the firmware is mounted. This is a bad behavior, since it means that installing the firmware to the filesystem is insufficient. You must include the firmware in the initramfs, embed it in the kernel, or arrange for the graphics driver not to initialize until the filesystems are mounted. Embedding the firmware is the easiest. It can be done by listing the required files in CONFIG_EXTRA_FIRMWARE.
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silent_Walker
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PostPosted: Thu Oct 11, 2012 8:48 pm    Post subject: Reply with quote

The radeon/R700_rlc.bin would not load because I really needed the R600. Startx still says no screens but I am now in the process of rebuilding X.
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PostPosted: Sat Oct 13, 2012 8:26 am    Post subject: Reply with quote

Could you pastebin a dmesg?
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silent_Walker
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PostPosted: Sat Oct 13, 2012 1:13 pm    Post subject: Reply with quote

Here is dmesg - radeon is not detected.

http://bpaste.net/show/50905/

and I rebuilt X and here is the new log - looking over it, my radeon pci is found but it failed to open the DRM.

http://bpaste.net/show/50842/
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Hu
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PostPosted: Sat Oct 13, 2012 5:41 pm    Post subject: Reply with quote

That dmesg output is very incomplete. For a fresh boot, you should have quite a bit more before that, and probably a fair bit after it.

Based on that X log, it may be probing the wrong location. What is the output of lspci -vk ; cat -n /etc/X11/xorg.conf?
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silent_Walker
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PostPosted: Sat Oct 13, 2012 7:18 pm    Post subject: Reply with quote

It says no such file or directory found.
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PostPosted: Sun Oct 14, 2012 1:04 pm    Post subject: Reply with quote

Talking about the dmesg: Hu is right, this as just a fragment at best. Can you doublecheck that this is all dmesg gives you? Also, please pastebin your kernel config. Could you also tell us the output of "cat /proc/fb"?
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PostPosted: Sun Oct 14, 2012 1:19 pm    Post subject: Reply with quote

silent_Walker,

Code:
irq 18: nobody cared (try booting with the "irqpoll" option)
Pid: 2914, comm: init Not tainted 3.5.2-gentoo #1
Call Trace:
 <IRQ>  [<ffffffff8105a0bf>] ? __report_bad_irq+0x2c/0xb4
 [<ffffffff8105a33e>] ? note_interrupt+0x166/0x1e8
 [<ffffffff810586d1>] ? handle_irq_event_percpu+0x104/0x11c
 [<ffffffff81058720>] ? handle_irq_event+0x37/0x57
 [<ffffffff8105abf5>] ? handle_fasteoi_irq+0x75/0xaa
 [<ffffffff81003107>] ? handle_irq+0x17/0x1d
 [<ffffffff81003031>] ? do_IRQ+0x45/0xad
 [<ffffffff812e3f27>] ? common_interrupt+0x67/0x67
 <EOI>


Ouch! Your BIOS is broken. Add irqpoll to the end of the kernel line in grub.conf
Nothing attached to IRQ 18 works.

You may have other similar errors and not know it, which would possibly stop any video card from working.
Your dmesg post looks like the last screenfull.
Code:
emerge wgetpaste

Then do
Code:
dmesg | wgetpaste
to put the entire output on the web. Post the web address you get back.
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silent_Walker
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PostPosted: Sun Oct 14, 2012 1:32 pm    Post subject: Reply with quote

DirtyHairy wrote:
Talking about the dmesg: Hu is right, this as just a fragment at best. Can you doublecheck that this is all dmesg gives you? Also, please pastebin your kernel config. Could you also tell us the output of "cat /proc/fb"?


Yep, after rebooting that is all that dmesg gives me.

kernel config :

http://bpaste.net/show/51124/


cat /proc/fb :

0 radeondrmfb
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Last edited by silent_Walker on Sun Oct 14, 2012 1:36 pm; edited 1 time in total
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PostPosted: Sun Oct 14, 2012 1:34 pm    Post subject: Reply with quote

NeddySeagoon wrote:
silent_Walker,

Code:
irq 18: nobody cared (try booting with the "irqpoll" option)
Pid: 2914, comm: init Not tainted 3.5.2-gentoo #1
Call Trace:
 <IRQ>  [<ffffffff8105a0bf>] ? __report_bad_irq+0x2c/0xb4
 [<ffffffff8105a33e>] ? note_interrupt+0x166/0x1e8
 [<ffffffff810586d1>] ? handle_irq_event_percpu+0x104/0x11c
 [<ffffffff81058720>] ? handle_irq_event+0x37/0x57
 [<ffffffff8105abf5>] ? handle_fasteoi_irq+0x75/0xaa
 [<ffffffff81003107>] ? handle_irq+0x17/0x1d
 [<ffffffff81003031>] ? do_IRQ+0x45/0xad
 [<ffffffff812e3f27>] ? common_interrupt+0x67/0x67
 <EOI>


Ouch! Your BIOS is broken. Add irqpoll to the end of the kernel line in grub.conf
Nothing attached to IRQ 18 works.

You may have other similar errors and not know it, which would possibly stop any video card from working.
Your dmesg post looks like the last screenfull.
Code:
emerge wgetpaste

Then do
Code:
dmesg | wgetpaste
to put the entire output on the web. Post the web address you get back.


would not doubt that, this laptop is 5 years old almost :P
I did customize my kernel and took out a lot of stuff that my laptop did not have, so maybe that is why dmesg is short? A couple more lines were added when I edited in irqpoll, that was all USB stuff though.
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PostPosted: Sun Oct 14, 2012 1:55 pm    Post subject: Reply with quote

silent_Walker,

Code:
CONFIG_LOG_BUF_SHIFT=12
is why your dmesg is so short. Thats only a 4k buffer for dmesg. 2^CONFIG_LOG_BUF_SHIFT.
17 or 18 is a better number. 128k or 256k ... depending on how verbose you have made the kernel.
Its also good to turn on
Code:
# CONFIG_PRINTK_TIME is not set
to add timestamps to your dmesg. It allows you to see when things went wrong.

Adding
Code:
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
may fix your
dmesg wrote:
irq 18: nobody cared
problem. irqpoll is a hack, not a fix. It makes the kernel poll for interrupts which defeats the purpose of having an interrup in the first place.

Code:
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
must be off.

Code:
CONFIG_FB_RADEON=y
must be off. You get a free framebuffer with the new radeon driver and KMS, which you have selected.
The price for this is that all other frambuffer hardware drivers must be off. What you have done here is to select two different drivers for the same piece of hardware. Its harmless to the hardware but you won't like the result, as neither will work.

Fix the above and try again. You should have a much more informative dmesg this time.
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silent_Walker
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PostPosted: Sun Oct 14, 2012 2:39 pm    Post subject: Reply with quote

NeddySeagoon wrote:
silent_Walker,

Code:
CONFIG_LOG_BUF_SHIFT=12
is why your dmesg is so short. Thats only a 4k buffer for dmesg. 2^CONFIG_LOG_BUF_SHIFT.
17 or 18 is a better number. 128k or 256k ... depending on how verbose you have made the kernel.
Its also good to turn on
Code:
# CONFIG_PRINTK_TIME is not set
to add timestamps to your dmesg. It allows you to see when things went wrong.

Adding
Code:
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
may fix your
dmesg wrote:
irq 18: nobody cared
problem. irqpoll is a hack, not a fix. It makes the kernel poll for interrupts which defeats the purpose of having an interrup in the first place.

Code:
CONFIG_FB_FOREIGN_ENDIAN=y
CONFIG_FB_BOTH_ENDIAN=y
must be off.

Code:
CONFIG_FB_RADEON=y
must be off. You get a free framebuffer with the new radeon driver and KMS, which you have selected.
The price for this is that all other frambuffer hardware drivers must be off. What you have done here is to select two different drivers for the same piece of hardware. Its harmless to the hardware but you won't like the result, as neither will work.

Fix the above and try again. You should have a much more informative dmesg this time.


I did the fix reroute and now the irq 18 thing came up again.

anyway here is new dmesg

http://bpaste.net/show/51140/
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PostPosted: Sun Oct 14, 2012 3:01 pm    Post subject: Reply with quote

silent_Walker,

Thats much better - dmesg contains everything now.
Code:
irq 18: nobody cared (try booting with the "irqpoll" option)
means you need to add irqpoll back to the kernel line in grub.conf or everything shown for IRQ 18 in /proc/interrups won't work.
On my system, thats three USB busses and my video card. See my example below.
Code:
           CPU0       CPU1       CPU2       CPU3       CPU4       CPU5       
  0:        141        241        793       3997     111319    3549863   IO-APIC-edge      timer
  1:          0          0          0          0          0          2   IO-APIC-edge      i8042
  8:          0          0          0          0          0         46   IO-APIC-edge      rtc0
  9:          0          0          0          0          0          0   IO-APIC-fasteoi   acpi
 12:          0          0          0          0          0          3   IO-APIC-edge      i8042
 14:          0          0          0         10        641      15566   IO-APIC-edge      pata_atiixp
 15:          0          0          0          0          0          0   IO-APIC-edge      pata_atiixp
 16:          0          0          0          1         46       3575   IO-APIC-fasteoi   ohci_hcd:usb3, ohci_hcd:usb4, snd_hda_intel
 17:          0          0          2          8       1450     166349   IO-APIC-fasteoi   ehci_hcd:usb1
 18:          0          0          2         33       4952     995906   IO-APIC-fasteoi   ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7, nvidia  <----
 19:          0          0          1         12       1941     297945   IO-APIC-fasteoi   ehci_hcd:usb2, firewire_ohci
 22:          2          1          9         90       5072     708562   IO-APIC-fasteoi   ahci
 44:          0          0          4         46       2066     243861   PCI-MSI-edge      eth0
NMI:          0          0          0          0          0          0   Non-maskable interrupts
LOC:     984288     858972     893227     883345     918799     471054   Local timer interrupts
SPU:          0          0          0          0          0          0   Spurious interrupts
PMI:          0          0          0          0          0          0   Performance monitoring interrupts
IWI:          0          0          0          0          0          0   IRQ work interrupts
RTR:          0          0          0          0          0          0   APIC ICR read retries
RES:    2297634    1591482    1463256    1339668    1362276    1656958   Rescheduling interrupts
CAL:      30457      33779      32971      32182      31807      25253   Function call interrupts
TLB:          0          0          0          0          0          0   TLB shootdowns
THR:          0          0          0          0          0          0   Threshold APIC interrupts
MCE:          0          0          0          0          0          0   Machine check exceptions
MCP:         55         55         55         55         55         55   Machine check polls


From your dmesg, we can see that your Radeon framebuffer started properly. If its on IRQ 18, you will have problems with it in Xorg.
irqpoll will allow you to sidestep the interrupt issue and continue with Xorg testing. There may be other fixes for the interrupt issue, which we can come back to.

You choose - but only one at a time. Xorg or try to solve the IRQ issue.
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silent_Walker
Tux's lil' helper
Tux's lil' helper


Joined: 25 Jul 2012
Posts: 79
Location: forums.gentoo.org

PostPosted: Sun Oct 14, 2012 3:11 pm    Post subject: Reply with quote

NeddySeagoon wrote:
silent_Walker,

Thats much better - dmesg contains everything now.
Code:
irq 18: nobody cared (try booting with the "irqpoll" option)
means you need to add irqpoll back to the kernel line in grub.conf or everything shown for IRQ 18 in /proc/interrups won't work.
On my system, thats three USB busses and my video card. See my example below.
Code:
           CPU0       CPU1       CPU2       CPU3       CPU4       CPU5       
  0:        141        241        793       3997     111319    3549863   IO-APIC-edge      timer
  1:          0          0          0          0          0          2   IO-APIC-edge      i8042
  8:          0          0          0          0          0         46   IO-APIC-edge      rtc0
  9:          0          0          0          0          0          0   IO-APIC-fasteoi   acpi
 12:          0          0          0          0          0          3   IO-APIC-edge      i8042
 14:          0          0          0         10        641      15566   IO-APIC-edge      pata_atiixp
 15:          0          0          0          0          0          0   IO-APIC-edge      pata_atiixp
 16:          0          0          0          1         46       3575   IO-APIC-fasteoi   ohci_hcd:usb3, ohci_hcd:usb4, snd_hda_intel
 17:          0          0          2          8       1450     166349   IO-APIC-fasteoi   ehci_hcd:usb1
 18:          0          0          2         33       4952     995906   IO-APIC-fasteoi   ohci_hcd:usb5, ohci_hcd:usb6, ohci_hcd:usb7, nvidia  <----
 19:          0          0          1         12       1941     297945   IO-APIC-fasteoi   ehci_hcd:usb2, firewire_ohci
 22:          2          1          9         90       5072     708562   IO-APIC-fasteoi   ahci
 44:          0          0          4         46       2066     243861   PCI-MSI-edge      eth0
NMI:          0          0          0          0          0          0   Non-maskable interrupts
LOC:     984288     858972     893227     883345     918799     471054   Local timer interrupts
SPU:          0          0          0          0          0          0   Spurious interrupts
PMI:          0          0          0          0          0          0   Performance monitoring interrupts
IWI:          0          0          0          0          0          0   IRQ work interrupts
RTR:          0          0          0          0          0          0   APIC ICR read retries
RES:    2297634    1591482    1463256    1339668    1362276    1656958   Rescheduling interrupts
CAL:      30457      33779      32971      32182      31807      25253   Function call interrupts
TLB:          0          0          0          0          0          0   TLB shootdowns
THR:          0          0          0          0          0          0   Threshold APIC interrupts
MCE:          0          0          0          0          0          0   Machine check exceptions
MCP:         55         55         55         55         55         55   Machine check polls


From your dmesg, we can see that your Radeon framebuffer started properly. If its on IRQ 18, you will have problems with it in Xorg.
irqpoll will allow you to sidestep the interrupt issue and continue with Xorg testing. There may be other fixes for the interrupt issue, which we can come back to.

You choose - but only one at a time. Xorg or try to solve the IRQ issue.


Lets do the IRQ issue
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