Bug#465939: Crashes often when changing virtual desktop in KDE with translucencies

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

David wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.7.197-1
> Severity: important
>
> --- Please enter the report below this line. ---
>
> Hello,
>
> You were missing me a lot, weren't you? :-D
>
> With a Radeon 9200 SE, KDE with translucencies: when I change the KDE
> virtual desktop, the X server sometimes crashes, then the screen goes
> black and back to kdm.
>
> Whether or not it crashes when switching to another KDE virtual
> desktop seems to be random.
>
> The backtrace of the last crash:
>
> Backtrace:
> 0: /usr/bin/X(xf86SigHandler+0x7e) [0x80c675e]
> 1: [0xffffe420]
> 2: /usr/lib/xorg/modules//libxaa.so [0xb7952479]
> 3: /usr/bin/X [0x816ff13]
> 4: /usr/bin/X(CompositePicture+0x150) [0x8157260]
> 5: /usr/bin/X [0x815d23f]
> 6: /usr/bin/X [0x815a0f5]
> 7: /usr/bin/X [0x814d86e]
> 8: /usr/bin/X(Dispatch+0x2bf) [0x808d1ef]
> 9: /usr/bin/X(main+0x48b) [0x807470b]
> 10: /lib/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7d12450]
> 11: /usr/bin/X(FontFileCompleteXLFD+0x205) [0x8073a81]
>

Could you catch a debugging backtrace with gdb? This one is far from
containing what we need to debug the problem unfortunately.

You'll have to install xserver-xorg-core-dbg, libpixman-1-0-dbg and
xserver-xorg-video-ait-dbg. See
http://wiki.debian.org/XStrikeForce/XserverDebugging for details and
feel free to ask.

Brice