This has happend with fglrx driver as well. This is happening to me after setting up dual-head display with Xinerama. By using big desktop the problem is not reproducible.
$ uname -a Linux mk 2.6.20-14-generic #2 SMP Thu Apr 12 22:53:19 UTC 2007 i686 GNU/Linux $ dpkg -s kde-guidance | grep Version Version: 0.8.0-0ubuntu4 Output of displayconfig: $ displayconfig X Error: BadDevice, invalid or uninitialized input device 167 Major opcode: 146 Minor opcode: 3 Resource id: 0x0 Failed to open device X Error: BadDevice, invalid or uninitialized input device 167 Major opcode: 146 Minor opcode: 3 Resource id: 0x0 Failed to open device KCrash: Application 'displayconfig' crashing... Full stack trace attached. ** Attachment added: "Stack trace of displayconfig (fglrx Xinerama)" http://librarian.launchpad.net/7317120/displayconfig_stack_trace_fglrx.txt -- [apport] displayconfig-restore.py crashed with SIGSEGV https://bugs.launchpad.net/bugs/104593 You received this bug notification because you are a member of Kubuntu Team, which is a bug contact for kde-guidance in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs