[Bug 87578] New: Massive display corruption with xf86-video-intel 2.99.917

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87578

            Bug ID: 87578
           Summary: Massive display corruption with xf86-video-intel
                    2.99.917
           Product: xorg
           Version: git
          Hardware: x86-64 (AMD64)
                OS: BSD (Others)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: ftigeot at wolfpond.org
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

I see massive display corruption with xf86-video-intel 2.99.917 on a DragonFly
4.1/Ivy-Bridge system.

Windows contents or text strings don't get properly drawn, showing blank areas.
Rectangular areas of the screen stay black or display the background root
window content etc...
Sometimes random memory values are visible in the form of bright and changing
pixels in the few top lines of the screen.

I have bisected this issue; it started with commit:

  b4872f74c05a92c91d7b57146eb35ed2ecc86d97
  sna: Avoid pwriting large batches

Reverting it fixes the corruption.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20141222/7495e617/attachment.html>