[Bug 35835] New: screen corruption using radeon 6.14.1 with an external monitor

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Mar 31 06:51:05 PDT 2011


           Summary: screen corruption using radeon 6.14.1 with an external
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: c.stender at web.de
         QAContact: xorg-team at lists.x.org

While most things run pretty well I sometimes see some screen corruptions
(~200px from the left are copied to the right). The corruption happens when I
start an xterm for the first time or when I maximize an xterm and run a program
like top (see corruption 1), or when I hit the logout button in KDE (see

My setup looks like the following: Thinkpad T60 (ATI X1400 GPU) with an
internal LCD (1400x1050 resolution, _disabled_) + an external DVI-connected LG
W2220P display (1680x1050 resolution, _enabled_, primary).

Maybe it's just coincidence, but it looks like the corruption starts at a x_pos
of about 1400 pixel (the x resolution of the internal but disabled LCD).

The old 6.13.2 driver doesn't show this problem.

Using the "ColorTiling false" option fixes the problem for me, but I'm not sure
if it should be used or not.

I already tried the xorg-patch mentioned in bug fdo#33929 but it doesn't help.

The rest of my setup: kernel 2.6.28, openSUSE 11.4, x11-server 1.9.3

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