[Bug 78416] New: GPU hang on Dell Dimension 4600 with PCI Radeon

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78416

          Priority: medium
            Bug ID: 78416
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: GPU hang on Dell Dimension 4600 with PCI Radeon
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: proski at gnu.org
          Hardware: x86 (IA32)
            Status: NEW
           Version: unspecified
         Component: DRM/Intel
           Product: DRI

Created attachment 98653
  --> https://bugs.freedesktop.org/attachment.cgi?id=98653&action=edit
kernel log

I have noticed that Dell Dimension 4600 running Ubuntu 12.04 (32-bit) would
become very unstable and hang within minutes after I replaced an AGP Radeon
7000 to a PCI Radeon 9200.  It turns out BIOS would not disable the internal
Intel video in the later case.  Blacklisting i915 fixed the problem.  Nothing
is connected to the Intel video.

I updated to the current mainline kernel (3.15.0-999-generic as of May 7, 2014)
and the problem persisted.  To capture the attached logs, I used "init 1" to
bring X11 down.  Then I ran "modprobe i915".  The kernel oopsed about a minute
later.  I was able to save /sys/class/drm/card1/error before it happened.

Attached are the kernel log after "modprobe i915", the output of "lspci
-nvvvxxx", the output of "lsmod" and the error file (compressed).

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