[Bug 58249] New: Scrolling artifacts in GTK2 applications [gen6, SNA]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=58249

          Priority: medium
            Bug ID: 58249
          Assignee: chris at chris-wilson.co.uk
           Summary: Scrolling artifacts in GTK2 applications [gen6, SNA]
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: linuxhippy at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/intel
           Product: xorg

On my gen6 based notebook running 2.20.15, I sometimes experience artifacts
when scrolling in GTK2 applications. It seems like something is wrong with
CopyArea.
Although scrolling takes place immediately, some pixel lines are updated only
after some delay, reminding me of some effects provided by openoffice impress
when changing slides.
Its very visible in the Thunar file manager when scrolling through directories
containing a large number of items, the pidgin chat application or the sysprof
system wide profiler gui.

Unfourtunatly when running a screen-cast application, those effects do not
happen, so a video created with my horrible old mobile phone is the best I can
provide for now: http://youtu.be/q7_UaaGmvyw

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