[Bug 30679] New: KDE editor sluggish from f8fb9312d791af1f77020e8c2d35bb30841ed9aa

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=30679

           Summary: KDE editor sluggish from
                    f8fb9312d791af1f77020e8c2d35bb30841ed9aa
           Product: xorg
           Version: git
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: dm at mirabel-sil.com
         QAContact: xorg-team at lists.x.org


Commit :
RADEONPrepareAccess_CS: fallback to DFS when pixmap is in VRAM
f8fb9312d791af1f77020e8c2d35bb30841ed9aa

introduces serious sluggishness with KDE4 editor components / apps.


For instance with Kate, switching opened files or scrolling file content is
extremely sluggish and makes Xorg eat 80-90% CPU
Same behavior with Kwrite.

No other slowdowns noticed apart from the KDE editor component.

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