I am using the 13.04 x64 release of Ubuntu on my PC and at least it works so far as it should. But suddenly the lightdm crashes during boot and even if I try to start it manually from terminal after switching to another tty.
I don't know what may cause the problems because I didn't even install any graphics-drivers for my nvidia card (because I just know those problems since years and skip those problems by not installing any of them).
It worked fine for some days after fresh install and updates, but now it just does not what it should.
Switching to gdm did solve the problem logging in to my computer with a gui but hell this lightdm should work I guess..
The logs aren't pretty much of help for me but maybe someone know what's up?
lightdm.log [+0.00s] DEBUG: Logging to /var/log/lightdm/lightdm.log [+0.00s] DEBUG: Starting Light Display Manager 1.6.0, UID=0 PID=7369 [+0.00s] DEBUG: Loaded configuration from /etc/lightdm/lightdm.conf [+0.00s] DEBUG: Using D-Bus name org.freedesktop.DisplayManager [+0.00s] DEBUG: Registered seat module xlocal [+0.00s] DEBUG: Registered seat module xremote [+0.00s] DEBUG: Adding default seat [+0.00s] DEBUG: Starting seat [+0.00s] DEBUG: Starting new display for greeter [+0.00s] DEBUG: Starting local X display [+0.00s] DEBUG: Using VT 7 [+0.00s] DEBUG: Activating VT 7 [+0.01s] DEBUG: Logging to /var/log/lightdm/x-1.log [+0.01s] DEBUG: Writing X server authority to /var/run/lightdm/root/:1 [+0.01s] DEBUG: Launching X Server [+0.01s] DEBUG: Launching process 7376: /usr/bin/X :1 -core -auth /var/run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch [+0.01s] DEBUG: Waiting for ready signal from X server :1 [+0.01s] DEBUG: Acquired bus name org.freedesktop.DisplayManager [+0.01s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0 [+0.61s] DEBUG: Got signal 10 from process 7376 [+0.61s] DEBUG: Got signal from X server :1 [+0.61s] DEBUG: Connecting to XServer :1 [+0.61s] DEBUG: Starting greeter [+0.62s] DEBUG: Started session 7385 with service 'lightdm-greeter', username 'lightdm' [+0.64s] DEBUG: Session 7385 authentication complete with return value 0: Success [+0.64s] DEBUG: Greeter authorized [+0.64s] DEBUG: Logging to /var/log/lightdm/x-1-greeter.log [+0.64s] DEBUG: Session 7385 running command /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/unity-greeter [+0.68s] DEBUG: Greeter closed communication channel [+0.68s] DEBUG: Session 7385 exited with return value 1 [+0.68s] DEBUG: Greeter quit [+0.68s] DEBUG: Failed to start greeter [+0.68s] DEBUG: Stopping display [+0.68s] DEBUG: Sending signal 15 to process 7376 [+0.82s] DEBUG: Process 7376 exited with return value 0 [+0.82s] DEBUG: X server stopped [+0.82s] DEBUG: Removing X server authority /var/run/lightdm/root/:1 [+0.82s] DEBUG: Releasing VT 7 [+0.82s] DEBUG: Display server stopped [+0.82s] DEBUG: Stopping seat, failed to start a display [+0.82s] DEBUG: Stopping seat [+0.82s] DEBUG: Seat stopped [+0.82s] DEBUG: Required seat has stopped [+0.82s] DEBUG: Stopping display manager [+0.82s] DEBUG: Display manager stopped [+0.82s] DEBUG: Stopping daemon [+0.82s] DEBUG: Exiting with return value 1 --- x-0-greeter.log Error writing X authority: Failed to write X authority /var/lib/lightdm/.Xauthority: Success --- x-1-greeter.log Error writing X authority: Failed to write X authority /var/lib/lightdm/.Xauthority: Success /var/log/lightdm/x-1-greeter.log (END) --- x0.log X.Org X Server 1.13.3 Release Date: 2013-03-07 X Protocol Version 11, Revision 0 Build Operating System: Linux 3.2.0-37-generic x86_64 Ubuntu Current Operating System: Linux stefan-dev 3.8.0-30-generic #44-Ubuntu SMP Thu Aug 22 20:52:24 UTC 2013 x86_64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.8.0-30-generic root=UUID=6e9c6967-a55f-49b8-b690-7257b359ae8d ro quiet splash vt.handoff=7 Build Date: 17 April 2013 10:43:13PM xorg-server 2:1.13.3-0ubuntu6 (For technical support please see http://www.ubuntu.com/support) Current version of pixman: 0.28.2 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Tue Sep 17 18:27:30 2013 (==) Using system config directory "/usr/share/X11/xorg.conf.d" Initializing built-in extension Generic Event Extension Initializing built-in extension SHAPE Initializing built-in extension MIT-SHM Initializing built-in extension XInputExtension Initializing built-in extension XTEST Initializing built-in extension BIG-REQUESTS Initializing built-in extension SYNC Initializing built-in extension XKEYBOARD Initializing built-in extension XC-MISC Initializing built-in extension SECURITY Initializing built-in extension XINERAMA Initializing built-in extension XFIXES Initializing built-in extension RENDER Initializing built-in extension RANDR Initializing built-in extension COMPOSITE Initializing built-in extension DAMAGE Initializing built-in extension MIT-SCREEN-SAVER Initializing built-in extension DOUBLE-BUFFER Initializing built-in extension RECORD Initializing built-in extension DPMS Initializing built-in extension X-Resource Initializing built-in extension XVideo Initializing built-in extension XVideo-MotionCompensation Initializing built-in extension SELinux Initializing built-in extension XFree86-VidModeExtension Initializing built-in extension XFree86-DGA Initializing built-in extension XFree86-DRI Initializing built-in extension DRI2 Loading extension GLX resize called 1680 1050 Server terminated successfully (0). Closing log file.