Comment 38 for bug 165093

I was able to reproduce this problem pretty easily using the method described here: https://bugs.launchpad.net/ubuntu/+source/nspluginwrapper/+bug/241145

It *seemed* to only happen with the flashplugin-nonfree package installed.

I added 'Option "XaaNoOffscreenPixmaps"' to my xorg.conf file and I HAVE NOT been able to reproduce this issue. It seems to have solved the issue I was having that looked similar to this.

My configuration:
Hardy (AMD64)
fglrx (latest ubuntu package)
flashplugin-nonfree
compiz enabled

Here's the Xorg.0.log I was getting previously:
Backtrace:
0: /usr/bin/X(xf86SigHandler+0x6a) [0x48402a]
1: /lib/libc.so.6 [0x7f8e32203100]
2: /usr/lib/xorg/modules//libxaa.so [0x7f8e2f772c9c]
3: /usr/lib/xorg/modules//libxaa.so [0x7f8e2f772e96]
4: /usr/bin/X [0x527ea2]
5: /usr/bin/X [0x515c3f]
6: /usr/bin/X(Dispatch+0x2ef) [0x44eaaf]
7: /usr/bin/X(main+0x47d) [0x436b9d]
8: /lib/libc.so.6(__libc_start_main+0xf4) [0x7f8e321ef1c4]
9: /usr/bin/X(FontFileCompleteXLFD+0x279) [0x435ed9]

Fatal server error:
Caught signal 11. Server aborting

(II) AIGLX: Suspending AIGLX clients for VT switch