[Bug 80218] New: TearFree sometimes causes windows to not refresh properly with Kwin OpenGL compositing

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80218

          Priority: medium
            Bug ID: 80218
          Assignee: chris at chris-wilson.co.uk
           Summary: TearFree sometimes causes windows to not refresh
                    properly with Kwin OpenGL compositing
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: absorbb at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

Not sure if it mesa bug or driver or X - i update regularly all of them.
Sometimes windows content is not refreshed. Easily noticeable if Kwin Vsync is
also enabled (which is redundant of course). Faster way to reproduce - switch
skype 4.3 from contacts view to history (gray button at the right side) few
times. Harder to notice if kwin vsync is disabled. Also happened in Firefox. I
think it is not application dependent. E.g. popup menu can not show up at all.
Started to happen maybe days or weeks ago. I dont use OpenGL compositing
mostly.

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