[Bug 85842] Radeon HD 7750 GPU lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=85842

            Bug ID: 85842
           Summary: Radeon HD 7750 GPU lockup
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: alex.teorver at gmail.com

Created attachment 108877
  --> https://bugs.freedesktop.org/attachment.cgi?id=108877&action=edit
dmesg

Screen freezes for few seconds and then display switches off.
It switches on and off randomly after this.
Xorg is stalled, sometimes you lucky enough to switch to console.

Looks like triggered by firefox.

Arch Linux
Xserver 1.16.1, Mesa 10.3.2, Linux 3.17.2 (but it happened with previous
versions too).

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