10de:0a34 [Asus N51Vn] random interface freeze

[Chad Hogg]

Binary package hint: xorg

I have used 9.10 and earlier releases on this hardware daily with no problems, but after an upgrade to 10.04 I experience the following problem once for every several hours that I use the machine. There is no specific trigger that causes it. The symptoms are that suddenly the keyboard becomes unresponsive. This includes low-level features like activation of the CapsLock indicator light, though Alt+SysRq+o is effective. I am able to move the mouse pointer, but mouse clicks have no effect. There is no corruption of the display. I am able to SSH in to the system, and when I do I notice that xorg is at 100% CPU usage. I have found nothing in any log that indicates a problem, but perhaps you will be able to do so.

Backtrace:
0: /usr/bin/X (xorg_backtrace+0x28) [0x4a3248]
1: /usr/bin/X (mieqEnqueue+0x1f4) [0x4a2ac4]
2: /usr/bin/X (xf86PostMotionEventP+0xc4) [0x47cea4]
3: /usr/bin/X (xf86PostMotionEvent+0xa9) [0x47d049]
4: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7fc548b98000+0x39d4) [0x7fc548b9b9d4]
5: /usr/lib/xorg/modules/input/synaptics_drv.so (0x7fc548b98000+0x5f48) [0x7fc548b9df48]
6: /usr/bin/X (0x400000+0x6fca7) [0x46fca7]
7: /usr/bin/X (0x400000+0x11d1f3) [0x51d1f3]
8: /lib/libpthread.so.0 (0x7fc54ddd3000+0xf8f0) [0x7fc54dde28f0]
9: /lib/libc.so.6 (ioctl+0x7) [0x7fc54cb8b157]
10: /lib/libdrm.so.2 (drmIoctl+0x28) [0x7fc54b13c5b8]
11: /lib/libdrm.so.2 (drmCommandWrite+0x1b) [0x7fc54b13c83b]
12: /lib/libdrm_nouveau.so.1 (0x7fc54aafe000+0x2f7d) [0x7fc54ab00f7d]
13: /lib/libdrm_nouveau.so.1 (nouveau_bo_map_range+0xfc) [0x7fc54ab011bc]
14: /usr/lib/xorg/modules/drivers/nouveau_drv.so (0x7fc54ad04000+0x5d97) [0x7fc54ad09d97]
15: /usr/lib/xorg/modules/libexa.so (0x7fc549c59000+0x8320) [0x7fc549c61320]
16: /usr/bin/X (0x400000+0x15a874) [0x55a874]
17: /usr/bin/X (0x400000+0xd20b9) [0x4d20b9]
18: /usr/bin/X (0x400000+0x30c3c) [0x430c3c]
19: /usr/bin/X (0x400000+0x261aa) [0x4261aa]
20: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7fc54cacbc4d]
21: /usr/bin/X (0x400000+0x25d59) [0x425d59]

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
Architecture: amd64
Date: Tue May 25 11:38:05 2010
DkmsStatus: Error: [Errno 2] No such file or directory
MachineType: ASUSTeK Computer Inc. N51Vn
ProcCmdLine: root=UUID=9fff8217-4b9c-4bf3-92b9-8285350e3feb ro quiet splash
ProcEnviron:
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: xorg
dmi.bios.date: 06/12/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 211
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: N51Vn
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr211:bd06/12/2009:svnASUSTeKComputerInc.:pnN51Vn:pvr1.0:rvnASUSTeKComputerInc.:rnN51Vn:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: N51Vn
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
system:
 distro: Ubuntu
 codename: lucid
 architecture: x86_64
 kernel: 2.6.32-22-generic

[Bilal Akhtar (bilalakhtar)]

Is this bug similar to bug #565981 ?

[Chad Hogg (chadhogg)]

It does not appear to be to me. My problem did not present with memory issues, and the file /sys/kernel/debug/dri/0/gem_names contains only the header line.

[Chad Hogg (chadhogg)]

It looks likely that you were correct in marking this as specific to Nouveau. After switching to the proprietary Nvidia driver I have had 48 hours of uptime with no issues. Thus, I no longer have a personal stake in seeing this bug fixed. However, if there is any further specific data I could collect to assist in debugging, I'll go back to Nouveau temporarily.

[Robert Hooker (sarvatt)]

If you can try nouveau again, does booting with nouveau.noaccel=1 added to the kernel command line in grub fix it?

This seems to be related to this problem:
https://bugs.freedesktop.org/show_bug.cgi?id=26980#c25

[penalvch (penalvch)]

Chad Hogg, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect 585462