[Bug 86972] New: [drm] stuck on render ring - screen turns off, have to suspend and resume to get it back, gnome-session-failed

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86972

            Bug ID: 86972
           Summary: [drm] stuck on render ring - screen turns off, have to
                    suspend and resume to get it back,
                    gnome-session-failed
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: lohmaier at gmx.de
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 110408
  --> https://bugs.freedesktop.org/attachment.cgi?id=110408&action=edit
gpu crash dump

easiest way to trigger the problem is by watching youtube videos with chromium
browser in gnome3 - but also occurs when loading openstreetmap widget in the
browser.

This is with a Fujitsu Esprimo Mobile U9200 notebook, Intel 965GM integrated
graphics, using Mageia 4

Symptoms:
* Screen goes black, switching to different virtual consoles or attempt to
switch brightness doesn't bring it back on.

* suspend to RAM and waking it up brings back the display
  although gnome-session fails to resume, shows the "cannot recover, log-out"
screen. You can kill the gnome-session-failed process from a VT and launch
metacity or some other window manager to clean up/save your documents though.

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