[Bug 10815] New: radeon X300 system freeze with hardware cursor enabled

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=10815

           Summary: radeon X300 system freeze with hardware cursor enabled
           Product: xorg
           Version: 7.2
          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: szuk at telusplanet.net
         QAContact: xorg-team at lists.x.org


This is probably the same issue as bug 5376 but I have different testcase and
setup so I created a new bug.

Hardware and OS config:
Thinkpad T43 with ATI Radeon Mobility X300 (M22) 5460 (PCIE)
Debian unstable/experimental
Linux 2.6.21 kernel (custom build)
xserver-xorg  7.2-2
xserver-xorg-video-ati 6.6.191-1
libgl1-mesa-dri 6.5.2-4
libdrm2 2.3.0-4

The problem occurs only when using the hardware cursor with the radeon driver
(the default).  I am launching a 'failsafe' session from kdm, only a single
terminal is running, no window manager or anything else.  I have the crystal
xcursor theme installed as the default cursor theme.  When I launch the GL app
neverball in windowed mode, I can cause the entire system to freeze by moving
the mouse cursor into and out of the GL window repeatedly.  Neverball changes
the mouse pointer to a black and white arrow so it looks like switching the
cursor is triggering the problem.  I cannot reproduce the problem when running
glxgears and moving the cursor into and out of the window, glxgears does not
appear to be changing the cursor image.

Enabling the software cursor with "SWcursor" "on" does not cause the system to
freeze anymore, although the cursor flickers and is barely visible in GL
windows.  The "SilkenMouse" option does not have any effect, the system locks
up whether it is set on or off.  I'm also not using MergedFB.

I will attach my xorg.conf and Xorg.0.log, let me know if you need any more
information.


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