[Bug 101229] Global screen tearing (scrolling, Hz miss-match?)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101229

            Bug ID: 101229
           Summary: Global screen tearing (scrolling, Hz miss-match?)
           Product: Mesa
           Version: 17.0
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/Gallium/radeonsi
          Assignee: dri-devel at lists.freedesktop.org
          Reporter: Paul.Hancock.17041993 at live.com
        QA Contact: dri-devel at lists.freedesktop.org

Created attachment 131571
  --> https://bugs.freedesktop.org/attachment.cgi?id=131571&action=edit
glxinfo

System exhibits uncontrolled screen-tearing that can be seen when moving
windows, watching videos or playing games, or any graphical movement in
general. The tearing gradually shifts up or down the screen, suggesting its a
cycle frequency miss-match (or floating-point error).

Has affected mesa 12 and kernel 4.8 onwards.

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