[Bug 23024] New: Video artefacts on some apps with EXA enabled

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=23024

           Summary: Video artefacts on some apps with EXA enabled
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bugsbane at gmail.com
         QAContact: xorg-team at lists.x.org


DESCRIPTION:
Video artefacts on particular windows, especially when they are updating. Seems
to happen more on some apps (Kate, Kpackagekit) than others. Some it happens
on, but only infrequently.


HOW TO REPRODUCE:
1. Use ATI video driver with EXA enabled.
2. Open kate.
3. Write some stuff.
4. Resize the window and scroll a bit. Within 30 seconds problem should be
visible.


TECH SPECS:
***machine 1 - happens more on this machine***
xserver-xorg-video-ati 1:6.12.1-0ubuntu2 (i386) from Ubuntu repos
Kubuntu Jaunty 32bit (AMD dual core 64 bit cpu)
ATI Technologies Inc RS482 [Radeon Xpress 200M]
KDE 4.2.2
Xorg.conf:
Section "Monitor"
        Identifier      "Configured Monitor"
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Monitor         "Configured Monitor"
        Device          "Configured Video Device"
        DefaultDepth    24
        SubSection "Display"
                Depth           24
                Modes           "1280x800"
                Virtual         1280 800
        EndSubSection
EndSection

Section "Device"
        Identifier      "Configured Video Device"
        Driver          "ati"
        Option          "XAANoOffscreenPixmaps"
        Option          "AccelMethod"    "EXA"
EndSection

Section "ServerFlags"
        Option  "DontZap"       "False"
EndSection

Section "DRI"
        Mode 0666
EndSection

Section "Extensions"
        Option "Composite" "Enable"
EndSection





***machine 2 - happens less on this machine***
xserver-xorg-video-ati 1:6.12.99+git20090629.f39cafc5-0ubuntu1 (amd64) from
Ubuntu repos
Kubuntu Karmic 64bit (AMD quad core 64 bit cpu)
ATI HD4850
KDE 4.2.98 (4.3 RC3)
Default xorg (UXA?)


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