Just a "me too" here. I'm also using Kubunto with Compiz, but didn't try switching Compiz off yet.
I don't have a clue what's going on here, but it seems like it has something to do with the CPU or I/O load. Currently I've got a RAID resync running and a large rsync operation and I've encountered four crashes during these operations. Yesterday I had no crashes at all with my computer being almost idle. I've got two almost identical backtraces from my X-logs: > Backtrace: > 0: /usr/bin/X(xf86SigHandler+0x81) [0x80c9581] > 1: [0xffffe420] > 2: /usr/bin/X [0x817e39d] > 3: /usr/bin/X [0x817a9ef] > 4: /usr/bin/X(CompositeGlyphs+0x9a) [0x816129a] > 5: /usr/bin/X [0x8168f19] > 6: /usr/bin/X [0x8164315] > 7: /usr/bin/X [0x815754e] > 8: /usr/bin/X(Dispatch+0x1aa) [0x808f47a] > 9: /usr/bin/X(main+0x495) [0x8076f05] > 10: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7d5e050] > 11: /usr/bin/X(FontFileCompleteXLFD+0x1e1) [0x8076241] > > Fatal server error: > Caught signal 11. Server aborting And: > Backtrace: > 0: /usr/bin/X(xf86SigHandler+0x81) [0x80c9581] > 1: [0xffffe420] > 2: /usr/bin/X [0x817e39d] > 3: /usr/bin/X [0x817a9ef] > 4: /usr/bin/X(CompositeGlyphs+0x9a) [0x816129a] > 5: /usr/bin/X [0x8168f19] > 6: /usr/bin/X [0x8164315] > 7: /usr/bin/X [0x815754e] > 8: /usr/bin/X(Dispatch+0x1aa) [0x808f47a] > 9: /usr/bin/X(main+0x495) [0x8076f05] > 10: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7df9050] > 11: /usr/bin/X(FontFileCompleteXLFD+0x1e1) [0x8076241] > > Fatal server error: > Caught signal 11. Server aborting I'm using the latest Kubuntu (Gutsy Gibbon) and the latest NVidia drivers (v100.14.23). Apart from the NVidia-drivers, all software on my system is installed from packages. -- X crash: FontFileCompleteXLFD+0xa1 https://bugs.launchpad.net/bugs/71913 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs