[Bug 69341] New: KDE 4.11 is EXTREMELY slow with Raster QT backend while X11/XRender has graphical glitches

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=69341

          Priority: medium
            Bug ID: 69341
          Assignee: xorg-driver-ati at lists.x.org
           Summary: KDE 4.11 is EXTREMELY slow with Raster QT backend
                    while X11/XRender has graphical glitches
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: darkbasic at linuxsystems.it
          Hardware: Other
            Status: NEW
           Version: git
         Component: Driver/Radeon
           Product: xorg

Created attachment 85799
  --> https://bugs.freedesktop.org/attachment.cgi?id=85799&action=edit
X11/XRender corruption

Adding/deleting text in Konsole or minimizing a window is a pain in the ass
with the Raster backend. X11/XRender backend is fast but has graphical
glitches.

Linux 3.12 (drm-next merged on top of 3.11.0) but I also tried 3.11.
xorg-server 1.14.2.902
mesa git
libdrm git
xf86-video-ati git
glamor git but I also tried 0.5
llvm git
clang git
KDE 4.11.1
Gentoo

I attached a screenshot of the X11/XRender corruption.

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