[Bug 76367] New: Corrupted second monitor 2D rendering

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=76367

          Priority: medium
            Bug ID: 76367
          Assignee: chris at chris-wilson.co.uk
           Summary: Corrupted second monitor 2D rendering
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: arcadiy at ivanov.biz
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

I have Dell Precision M4800 with FireGL HD 8870M and Intel Haswell on Fedora
20.
Windows 7 works fine. On Fedora external monitor is always corrupted in
addition to getting EDID checksum errors that I can overcome with xrandr
--off/--auto.

Below are pictures of the monitor corruption (screenshot comes out to be fine).
There are basically screen erasure issues: mouse cursor leaves traces, window
resizing leaves pieces of window lying around, weird triangles coming and going
all over.

I'm using opensource radeon with latest 1.0.4 intel display drivers.

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