What does the error "Fatal IO error 0 (Success) on X server" mean? The error is produced when an X client tries to call XvCreateImage(), and it results in the client terminating.
X.0.log shows the following version information:
X.Org X Server 1.6.4 Release Date: 2009-9-27 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-23-server i686 Ubuntu Current Operating System: Linux ori-laptop 2.6.31-17-generic #54-Ubuntu SMP Thu Dec 10 16:20:31 UTC 2009 i686 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.31-17-generic root=UUID=df637de9-47ed-4453-9393-67e2e2ffaa2f ro quiet splas
I had the same problem, i could solve it by removing ~/.gconf/desktop/gnome/peripherals
. You can move/rename the whole ~/.gconf/desktop/gnome
directory just to test if it works. Then just test folder by folder which one of the configurations causes the problem.
Hope it helps.