[Bug 18398] New: Form check-box corruption in Firefox [Human GTK-theme, EXA enabled]

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=18398

           Summary: Form check-box corruption in Firefox [Human GTK-theme,
                    EXA enabled]
           Product: xorg
           Version: 7.4
          Platform: All
               URL: https://bugs.edge.launchpad.net/ubuntu/+source/xserver-
                    xorg-video-ati/+bug/291045
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: high
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=20090)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=20090)
Xorg.0.log

Forwarding this EXA bug from a Ubuntu tester:
https://bugs.edge.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/291045

[Problem]
Slight corruption in Firefox widgets when scrolling under Compiz with EXA
enabled.

[Original report]
When scrolling a web page in Firefox that has check-boxes in a form, I
frequently observe slight graphics corruption under some of the check-boxes.
The corruption is typically black pixels. Hovering mouse over affected
check-boxes makes it go away (presumably because this triggers a high-light
redraw).

Xorg driver in use is xserver-xorg-video-radeon git20081003.f9826a56-0ubuntu2.
EXA-acceleration is enabled.
Ubuntu 8.10 (fully updated, installed from RC).
Compiz is enabled.
GTK theme is Human (Ubuntu default).
Graphics card: ATI X1400 mobile radeon (R500), 128MB RAM.

If more information is needed, please say so. I am also willing and able to
test new GIT-snapshots of the radeon driver, and provide feedback if problems
are fixed, etc.

[Screenshot of corruption]
http://launchpadlibrarian.net/19073271/checkbox-corruption-firefox-gtk-human.png

[lspci]
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Radeon Mobility
X1400 [1002:7145]
        Subsystem: Lenovo Device [17aa:202a]
(Full lspci:  http://launchpadlibrarian.net/19073276/lspci-vvnn.txt)


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