[Bug 80428] New: [i915 Regression] Flicker playing videos in fullscreen using opengl vo driver

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80428

          Priority: medium
            Bug ID: 80428
                CC: intel-gfx-bugs at lists.freedesktop.org
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [i915 Regression] Flicker playing videos in fullscreen
                    using opengl vo driver
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: luiorpe1 at gmail.com
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 101613
  --> https://bugs.freedesktop.org/attachment.cgi?id=101613&action=edit
lspci output

I started experiencing flicker while playing videos in fullscreen after
updating to xf86-video-intel-2.99.912. It occurs only with the opengl vo
driver. Video files play fine with the xv driver.

Bisecting the issue lead me to the following commit in xf86-video-intel:
8369166349c92a20d9a2e7d0256e63f66fe2682b  sna/dri2: Enable immediate buffer
exchanges

I am using an Asus EeePC 1000H with an intel 945GME and Arch linux. I've got
the same issue with my mac mini ~2007 model, also a 945GM.

It can be reproduced using these commands:
mpv --no-config --vo=opengl-old <file>
mplayer -noconfig user -vo gl <file>

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