I'm seeing this on a Dell Inspiron 4100 with an ATI Mobility M6. The backtrace from the Xorg.0.log is as follows:
ProcXCloseDevice to close or not ? Backtrace: 0: /usr/X11R6/bin/X(xf86SigHandler+0x81) [0x80c38e1] 1: [0xffffe420] 2: /lib/tls/i686/cmov/libc.so.6(__strtoul_internal+0x3f) [0xb7d9c7cf] 3: /usr/X11R6/bin/X [0x80e5997] 4: /usr/X11R6/bin/X(xf86HandlePMEvents+0x3b) [0x80d25bb] 5: /usr/X11R6/bin/X(xf86Wakeup+0x153) [0x80c4d93] 6: /usr/X11R6/bin/X(WakeupHandler+0x59) [0x808a599] 7: /usr/X11R6/bin/X(WaitForSomething+0x1b9) [0x81943d9] 8: /usr/X11R6/bin/X(Dispatch+0x82) [0x8086802] 9: /usr/X11R6/bin/X(main+0x485) [0x806e715] 10: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xdc) [0xb7d848cc] 11: /usr/X11R6/bin/X(FontFileCompleteXLFD+0xa1) [0x806da51] Fatal server error: Caught signal 11. Server aborting Killing acpid is the only workaround I've found. -- Xorg exits when it receives an ACPI button/lid event https://launchpad.net/bugs/61746 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
