[Bug 41062] New: R600: mouse cursor display corruption

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=41062

           Summary: R600: mouse cursor display corruption
           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: nmiell at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=51439)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=51439)
Xorg.0.log

When I move the mouse cursor to the left half of the top row of the screen, a
flickering line appears to the right of the cursor in the top row of pixels.

The line is largest when the cursor is closest to the upper left pixel, and
shrinks as I move it to the right until somewhere around the center of the
screen it stops appearing entirely. The line shrinks to the right, i.e. at its
longest it extends from the cursors hotspot to a point maybe 64 pixels (an
eyeballed guess) to the right of the hotspot, and as it shrinks the gap between
the hotspot and the flickering line increases until it is invisible.

As far as I can tell, this flickering line always appears when I move the
cursor to the top row of pixels on the left half of the screen, although often
the color of the flickering line blends in very well to the background, so it
is possible that it goes away entirely without me noticing.

The flickering line does not appear in screenshots and happens both with and
without GL desktop compositing.

Hardware is:
01:05.0 VGA compatible controller: ATI Technologies Inc RS880 [Radeon HD 4250]

Software is:
xorg-x11-drv-ati-6.14.1-2.20110525gitfe5c42f51.fc15.x86_64
xorg-x11-server-Xorg-1.10.4-1.fc15.x86_64
libdrm-2.4.26-1.fc15.x86_64
kernel-2.6.40.4-5.fc15.x86_64

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