I've been able to work around the problem by limiting the mouse and
window transitions between screens. It seems the problem is not how many
transitions you make between the screens, but how fast you make them. If
you mostly work in in between the screens, you have a higher chance of
hitting this
I'm not sure if it's exactly the same bug, but when my X crashes (I have two
displays), I can see the mouse pointer jumping violently between the edges of
the two screens. I am not using user-switcher - I am just using desktop
applications (some terminals, firefox, thunderbird and a touch of
I've managed to reproduce the same bug on a different PC, running nvidia 96
driver and also having a dual display. The only difference is that I didn't get
a stack trace in Xorg.0.log when I killed X. The trigger in all cases has been
moving the mouse cursor between the screens (going from one
Maybe my own video card model is no longer affected by this bug:
adri...@frost:~$ grep blocked for more /var/log/kern.log
adri...@frost:~$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 82Q35 Express Integrated
Graphics Controller (rev 02)
adri...@frost:~$ uname -a
Linux
I've been running kernel 2.6.31-17 for about 5 days now, and no more
freeze (with acpi=on). Did the problem get fixed, or is it a
coincidence?
--
[i945G] karmic: INFO: task i915/* blocked for more than 120 seconds.
https://bugs.launchpad.net/bugs/451518
You received this bug notification because
Update - I have tried with kernel 2.6.31-16 and parameter acpi=off and I was
unable to reproduce the bug for 3 days. I would say acpi fixes the issue.
Now, I have switched to kernel 2.6.31-17 and I will test again without acpi=off
(the default way) and I will let you know if I have more
Update:
My system is now stable after uninstalling xscreensaver and using xlock instead
(no more 3d graphics). I will leave it on like this for a while and afterwards
I will enable compositing in my window manager (Xfce) and see if it becomes
unstable again. Will keep you posted.
--
[i945G]
Ugh - happened to me too - after the latest kernel upgrade (don't know if it's
related).
I'm running:
adri...@frost:~$ uname -a
Linux frost 2.6.31-16-generic #53-Ubuntu SMP Tue Dec 8 04:01:29 UTC 2009 i686
GNU/Linux
adri...@frost:~$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel
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