[Bug 78983] New: X freezes randomly when using Compiz and Cairo-dock

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78983

          Priority: medium
            Bug ID: 78983
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: X freezes randomly when using Compiz and Cairo-dock
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: tournieral at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 99442
  --> https://bugs.freedesktop.org/attachment.cgi?id=99442&action=edit
This is the [drm] GPU crash dump saved to /sys/class/drm/card0/error

I am using Fedora 20 mate-compiz with cairo-dock.
X freezes randomly when using Firefox 29.0.1

With the journalctl command, I see the following message:

kernel: [drm] stuck on render ring
kernel: [drm] GPU crash dump saved to /sys/class/drm/card0/error
kernel: [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack,
including userspace
kernel: [drm] Please file a _new_ bug report on bugs.freedesktop.org against
DRI -> DRM/Intel
kernel: [drm] drm/i915 developers can then reassign to the right component if
it's not a kernel 
kernel: [drm] The gpu crash dump is required to analyze gpu hangs, so please
always attach it.

The /sys/class/drm/card0/error file is sent in attachement.

My controller is an Intel Corporation 4th Gen Core Processor Integrated
Graphics Controller (rev 06).

Regards,
Alain

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