[Bug 88844] New: GPU hang

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88844

            Bug ID: 88844
           Summary: GPU hang
           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: teemual at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

While web browsing, screen went blank and backlight went off as well. Had to do
a power cycle after which the system worked fine again.

Ubuntu 14.04 on a 2008 MacBook 4.1. GPU: Intel GMA X3100



snippet of dmesg:
[   25.792974] [drm] GPU crash dump saved to /sys/class/drm/card0/error
[   25.792978] [drm] GPU hangs can indicate a bug anywhere in the entire gfx
stack, including userspace.
[   25.792979] [drm] Please file a _new_ bug report on bugs.freedesktop.org
against DRI -> DRM/Intel
[   25.792981] [drm] drm/i915 developers can then reassign to the right
component if it's not a kernel issue.
[   25.792982] [drm] The gpu crash dump is required to analyze gpu hangs, so
please always attach it.
[   25.793613] i915: render error detected, EIR: 0x00000010
[   25.793618] i915: page table error
[   25.793620] i915:   PGTBL_ER: 0x00000100
[   25.793624] [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010,
masking
[   25.793667] [drm] initialized overlay support

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