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My PC has an integrated Intel G41 video. I have been running Debian Squeeze for several years without any problems. Recently I upgraded to Wheezy and now after my computer wakes from sleep, X appears to be dead. In Xorg.0.log I see the following:

[  5123.481] (WW) intel(0): I830DRI2GetMSC:1457 get vblank counter failed: Invalid argument
[  5123.481] (WW) intel(0): I830DRI2ScheduleWaitMSC:1524 get vblank counter failed: Invalid argument
[  5131.489] (EE) intel(0): Detected a hung GPU, disabling acceleration.
[  5131.489] (EE) intel(0): When reporting this, please include i915_error_state from debugfs and the full dmesg.
[  5131.490] (WW) intel(0): I830DRI2GetMSC:1457 get vblank counter failed: Invalid argument
[  5131.490] (WW) intel(0): I830DRI2ScheduleWaitMSC:1524 get vblank counter failed: Invalid argument

I searched Google's and found suggestions to add "DRI" "false" to /etc/X11/xorg.conf. I tried that but then X only starts in "safe" mode.

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Maybe the references in this bug report are useful...And the FAQ entry on old cards (i.e. the fallback mentioned in the README.Debian file of xserver-xorg-video-intel is available, using fbdev or vesa). –  sr_ Jun 28 '12 at 8:12
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migrated from serverfault.com Jun 28 '12 at 5:52

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1 Answer

This is likely a bug in the Xorg Intel driver. Issues like this will likely not find an answer here on StackExchange and instead need the expertise of the Intel Xorg developers. Please file a bug at http://bugs.freedesktop.org with the following properties:

Product: xorg

Component: Driver/intel

Include in the report your system's version of the X server and the Intel Xorg driver. Use your package manager to get that info. (I'm not a Debian user, so I can't help you there).

If you need an immediate answer, after filing the bug report I suggest bringing the issue to the attention of the Intel devs on IRC. You can find them in #intel-gfx on freenode.

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