Bug#482819: xserver-xorg-video-intel: Random lockups on 855GM chipset
Daniel R. wrote:
> I am experimenting this bug in Debian Lenny, laptop with
> chipset Intel Corporation 82852/855GM Integrated Graphics Device (rev
> 02):
>
> Randomly, when I exit from Gnome (in some cases log out, others
> reboot),
> the screen goes blank, the laptop is still powered on (lights on, hard
> disk and fan running), but keyboard gets locked and remote ssh sessions
> dropped.
>
> (It did not happen to me with Debian Etch or Ubuntu 7.10 Gutsy Gibbon.)
>
> I think the following bug report in ubuntu is a duplicate of this one:
>
> https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/229043
>
> As also stated in that report, the problem seems to be caused by
> segmentation fault in gdm: sample of gdm crash in my kern.log:
>
>
> May 24 11:47:39 david kernel: gdm[2776]: segfault at 08000000 eip
> b76a9337 esp bf8acee8 error 4
> May 24 11:47:43 david kernel: fuse exit
> May 24 11:47:45 david kernel: Kernel logging (proc) stopped.
> May 24 11:47:45 david kernel: Kernel log daemon terminating.
>
>
> The gdm crash seems unrelated to prior kernel messages
> (several minutes between them). The gdm crash may explain why the
> problem only
> happens when logging out or rebooting.
>
Next time it happens, please save the corresponding log (reboot the
system and save /var/log/Xorg.0.log.old). There may be a lockup message
in there.
You might want to try intel driver 2.3.2 and upstream git too.
Unfortunately, there are many people (including me) getting random
lockups like this, and the upstream devs don't seem to have a clue about it.
> Also, in the above linked bug report they argue this may be a DRM/DRI
> related problem. In fact, in my Xorg.0.log the following suspicious
> lines appear:
>
> (EE) AIGLX error: dlopen of /usr/lib/dri/i915_dri.so failed
> (/usr/lib/dri/i915_dri.so: cannot open shared object file: No such file
> or directory)
> (EE) AIGLX: reverting to software rendering
>
Nothing bad here, you're just missing the libgl1-mesa-dri package, so
you don't get AIGLX enabled.
Brice
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