[Bug 92574] New: [drm] stuck on render ring

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92574

            Bug ID: 92574
           Summary: [drm] stuck on render ring
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: blocker
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: marc.kolly at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 119042
  --> https://bugs.freedesktop.org/attachment.cgi?id=119042&action=edit
dmesg output

Stuck occurs always when Google Chrome is running, but actual triggering
time/action/environment is still not clear. It was tested even using another
laptop of the same model and there it was the same problem.
The screen turns black when it hangs.

The system continues working in the background, I just ssh'd into the machine
(as I'm remote) to collect evidence.




- system architecture: x86_64
- kernel version: 3.13.0-61-generic
- linux distribution: Ubuntu
- machine: Lenovo T61 (6466-9MG)
- display connector: panel connected via LVDS, VGA disconnected

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