[Bug 15538] New: Screen corruption (triangular parts missing)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=15538

           Summary: Screen corruption (triangular parts missing)
           Product: xorg
           Version: 7.3
          Platform: x86-64 (AMD64)
               URL: http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-
                    ati.git;a=commit;h=d79040906cd25bd494feb5901f465bbd050aa
                    923
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: jlp.bugs at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=15955)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=15955)
Screenshot of corruption

After updating to latest revision from git I got some terrible screen
corruption. Triangular parts of icons and other screen elements were missing or
there was just a black part there. See the attached screenshot.

I've done a bisection and the commit that started causing this bug is "R3xx+:
EXA/textured video fixes":
http://gitweb.freedesktop.org/?p=xorg/driver/xf86-video-ati.git;a=commit;h=d79040906cd25bd494feb5901f465bbd050aa923

This is on a HP Compay nx6325 laptop with an integrated Radeon Xpress:
01:05.0 VGA compatible controller: ATI Technologies Inc RS485 [Radeon Xpress
1100 IGP] (prog-if 00 [VGA controller])


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