Have the same problem. Pretty annoying must admit. It seems like its because of something in KDE 4.4 as i didnt had this before as i was using gnome. System was upgraded from Ubuntu 9.04 (one year of gnome without the bug) to ubuntu 9.10 and kde 4.4.
The bug is pretty rare, around 1 time a day. output from syslog: 2010-03-16 15:20:41 acer-aspire-5630 wpa_supplicant[613] CTRL-EVENT-SCAN-RESULTS 2010-03-16 15:21:33 acer-aspire-5630 avahi-daemon[540] Invalid query packet. 2010-03-16 15:22:41 acer-aspire-5630 avahi-daemon[540] last message repeated 7 times 2010-03-16 15:22:41 acer-aspire-5630 wpa_supplicant[613] CTRL-EVENT-SCAN-RESULTS 2010-03-16 15:24:05 acer-aspire-5630 kdm[1272] X server for display :0 terminated unexpectedly 2010-03-16 15:24:06 acer-aspire-5630 console-kit-daemon[548] GLib-GObject-WARNING: instance with invalid (NULL) class pointer 2010-03-16 15:24:06 acer-aspire-5630 console-kit-daemon[548] GLib-GObject-CRITICAL: g_signal_emit_valist: assertion `G_TYPE_CHECK_INSTANCE (instance)' failed 2010-03-16 15:24:06 acer-aspire-5630 console-kit-daemon[548] GLib-GObject-CRITICAL: g_object_unref: assertion `G_IS_OBJECT (object)' failed 2010-03-16 15:24:06 acer-aspire-5630 acpid client 1285[0:0] has disconnected 2010-03-16 15:24:06 acer-aspire-5630 acpid client connected from 8527[0:0] 2010-03-16 15:24:07 acer-aspire-5630 acpid client connected from 8527[0:0] 2010-03-16 15:24:10 acer-aspire-5630 kdm_greet[8548] Cannot load /usr/share/kde4/apps/kdm/faces/.default.face: No such file or directory I wanted to show all around that record - 2010-03-16 15:24:05 acer-aspire-5630 kdm[1272] X server for display :0 terminated unexpectedly (so, it seems like the problem really is that server is falling, and nothing to do with kde) There is also some important stuff in x.org log: -rw-r--r-- 1 root root 22955 2010-03-16 15:27 Xorg.0.log -rw-r--r-- 1 root root 16407 2010-03-16 15:24 Xorg.0.log.old (so it seems that Xorg.0.log.old was created right after/before the crash) this was found in the end of Xorg.0.log.old: (**) Logitech USB Optical Mouse: (accel) filter stage 0: 20.00 ms (**) Logitech USB Optical Mouse: (accel) set acceleration profile 0 (II) Logitech USB Optical Mouse: initialized for relative axes. (WW) AT Translated Set 2 keyboard: unable to handle keycode 434 Backtrace: 0: /usr/bin/X(xorg_backtrace+0x3b) [0x8133d6b] 1: /usr/bin/X(xf86SigHandler+0x55) [0x80c7d35] 2: [0xc17400] Saw signal 11. Server aborting. (II) UnloadModule: "synaptics" (II) UVC Camera (046d:09b0): Close (II) UnloadModule: "evdev" (II) AT Translated Set 2 keyboard: Close (II) UnloadModule: "evdev" (II) Sleep Button: Close (II) UnloadModule: "evdev" (II) Video Bus: Close (II) UnloadModule: "evdev" (II) Power Button: Close (II) UnloadModule: "evdev" (II) Power Button: Close (II) UnloadModule: "evdev" (II) Macintosh mouse button emulation: Close (II) UnloadModule: "evdev" (II) Logitech USB Optical Mouse: Close (II) UnloadModule: "evdev" ddxSigGiveUp: Closing log Also, have to say that i'm using nvidia proprietary driver. I have also created the apport-collect report with all the hardware/software info about my box. ** Attachment added: "Xorg.0.log.old" http://launchpadlibrarian.net/41021916/Xorg.0.log.old -- X session log out unexpectedly https://bugs.launchpad.net/bugs/526572 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
