[Bug 363900] [NEW] [i945GM] hard lock with intel driver, no apparent trigger

[Steve Langasek]

Public bug reported:

Binary package hint: xserver-xorg-video-intel

Just experienced a hard lockup with my T60, no discernable cause.

The time frozen on the screen is 14:49, but the last log entries of
interest anywhere are some time before that.

/var/log/kern.log:
[...]
Apr 18 23:31:16 dario kernel: [78180.877318] synaptics was reset on resume, see synaptics_resume_reset if you have trouble on resume
Apr 19 04:23:14 dario kernel: [95698.158221] [drm:i915_getparam] *ERROR* Unknown parameter 6
Apr 19 14:20:07 dario kernel: [131511.081853] [drm:i915_getparam] *ERROR* Unknown parameter 6

/var/log/Xorg.0.log, timestampped 2009-04-19 14:07:
[...]
(II) PM Event received: Capability Changed
I830PMEvent: Capability change

/var/log/gdm/:0.log, same timestamp:
[...]
Errors from xkbcomp are not fatal to the X server
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change
I830PMEvent: Capability change

chvt hangs; xrandr hangs; glxinfo hangs (so I'm submitting this bug
report by hand, since ubuntu-bug can't collect any informaton without me
rebooting first)

This is the only time I've encountered a freeze of this nature so far.
I have the previous version of mesa loaded by the X server, not having
restarted it since the upgrade to 7.4-0ubuntu3; but since this is a 945
rather than a 965, I can't see why that would matter.

I don't run compiz, I haven't played any videos today, and TTBOMK I
haven't even been loading any different web pages than usual.  My recent
activity was all in gnome-terminals.  So I can't offer much as far as
hints for reproducing this.

I do have one setting of interest in my xorg.conf, which Bryce had asked
me to test:

Section "Device"
        Identifier      "Configured Video Device"
        Option "ExaOptimizeMigration" "off"
EndSection

the xorg.conf is otherwise vanilla, aside from a Virtual setting.  will
attach the full xorg.conf and intel_reg_dump output shortly.

** Affects: xserver-xorg-video-intel (Ubuntu)
     Importance: Undecided
         Status: New

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[i945GM] hard lock with intel driver, no apparent trigger
https://bugs.launchpad.net/bugs/363900
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