Just installed Kubuntu 6.10 yesterday. Choosing "Reboot" or "Shutdown" at logging out from KDE ends up in black screen like described above.
I'm not sure if this happened first time after changing screen parameters (to 1280x960 and choosing my graphics adapter and monitor in display settings from within KDE). Still occurs after setting TerminateServer=true in /etc/kde3/kdm/kdmrc. >From below I could derive that >From /var/log/messages, normally it should look like: Nov 7 12:53:50 host kernel: Kernel logging (proc) stopped. Nov 7 12:53:50 host kernel: Kernel log daemon terminating. Nov 7 12:53:51 host exiting on signal 15 Nov 7 12:56:15 host syslogd 1.4.1#18ubuntu6: restart. But grep -2 18:33: /var/log/* yields acpid-[Tue Nov 7 18:32:08 2006] client connected from 8798[0:0] acpid-[Tue Nov 7 18:32:08 2006] 1 client rule loaded acpid:[Tue Nov 7 18:33:22 2006] exiting acpid-[Tue Nov 7 18:34:49 2006] starting up acpid-[Tue Nov 7 18:34:49 2006] 54 rules loaded -- auth.log-Nov 7 18:31:54 c3209 sudo: re : TTY=tty2 ; PWD=/home/re ; USER=root ; COMMAND=/usr/bin/vi /etc/X11/xorg.conf auth.log-Nov 7 18:32:40 c3209 kdm: :0[8799]: (pam_unix) session opened for user re by (uid=0) auth.log:Nov 7 18:33:14 c3209 su[8969]: Successful su for re by root auth.log:Nov 7 18:33:14 c3209 su[8969]: + ??? root:re auth.log:Nov 7 18:33:14 c3209 su[8969]: (pam_unix) session opened for user re by (uid=0) auth.log:Nov 7 18:33:14 c3209 su[8969]: (pam_unix) session closed for user re auth.log:Nov 7 18:33:14 c3209 su[8976]: Successful su for re by root auth.log:Nov 7 18:33:14 c3209 su[8976]: + ??? root:re auth.log:Nov 7 18:33:14 c3209 su[8976]: (pam_unix) session opened for user re by (uid=0) auth.log:Nov 7 18:33:14 c3209 su[8976]: (pam_unix) session closed for user re auth.log:Nov 7 18:33:14 c3209 kdm: :0[8799]: (pam_unix) session closed for user re auth.log-Nov 7 18:48:42 c3209 kdm: :0[4075]: (pam_unix) session opened for user re by (uid=0) auth.log-Nov 7 18:53:10 c3209 sudo: re : TTY=pts/1 ; PWD=/home/re ; USER=root ; COMMAND=/usr/bin/vi /etc/X11/xorg.conf -- daemon.log-Nov 7 18:32:57 c3209 hcid[4796]: name_listener_add(:1.31) daemon.log-Nov 7 18:32:57 c3209 hcid[4796]: Default passkey agent (:1.31, /org/bluez/passkey_agent_8938) registered daemon.log:Nov 7 18:33:14 c3209 hcid[4796]: :1.31 exited without unregistering the default passkey agent daemon.log:Nov 7 18:33:15 c3209 init: tty1 process (7964) killed by signal 15 daemon.log:Nov 7 18:33:15 c3209 init: tty2 process (4152) killed by signal 15 daemon.log:Nov 7 18:33:15 c3209 init: tty3 process (4153) killed by signal 15 daemon.log:Nov 7 18:33:15 c3209 init: tty4 process (4154) killed by signal 15 daemon.log:Nov 7 18:33:15 c3209 init: tty5 process (4155) killed by signal 15 daemon.log:Nov 7 18:33:15 c3209 init: tty6 process (4156) killed by signal 15 daemon.log:Nov 7 18:33:20 c3209 hcid[4796]: Got disconnected from the system message bus daemon.log-Nov 7 18:34:55 c3209 kdm_greet[4183]: Can't open default user face daemon.log-Nov 7 18:35:06 c3209 hcid[4288]: Bluetooth HCI daemon -- debug-Nov 7 18:31:16 c3209 hcid[4796]: :1.26 exited without unregistering the default passkey agent debug-Nov 7 18:32:57 c3209 hcid[4796]: name_listener_add(:1.31) debug:Nov 7 18:33:14 c3209 hcid[4796]: :1.31 exited without unregistering the default passkey agent debug-Nov 7 18:34:50 c3209 kernel: [17179569.184000] On node 0 totalpages: 131056 debug-Nov 7 18:34:50 c3209 kernel: [17179569.184000] DMA zone: 4096 pages, LIFO batch:0 -- messages-Nov 7 18:08:18 c3209 kernel: [17184465.820000] agpgart: Putting AGP V2 device at 0000:01:00.0 into 4x mode messages-Nov 7 18:30:46 c3209 -- MARK -- messages:Nov 7 18:33:22 c3209 exiting on signal 15 messages-Nov 7 18:34:50 c3209 syslogd 1.4.1#18ubuntu6: restart. messages-Nov 7 18:34:50 c3209 kernel: Inspecting /boot/System.map-2.6.17-10-generic -- syslog.0-Nov 7 18:32:57 c3209 hcid[4796]: name_listener_add(:1.31) syslog.0-Nov 7 18:32:57 c3209 hcid[4796]: Default passkey agent (:1.31, /org/bluez/passkey_agent_8938) registered syslog.0:Nov 7 18:33:14 c3209 hcid[4796]: :1.31 exited without unregistering the default passkey agent syslog.0:Nov 7 18:33:15 c3209 init: tty1 process (7964) killed by signal 15 syslog.0:Nov 7 18:33:15 c3209 init: tty2 process (4152) killed by signal 15 syslog.0:Nov 7 18:33:15 c3209 init: tty3 process (4153) killed by signal 15 syslog.0:Nov 7 18:33:15 c3209 init: tty4 process (4154) killed by signal 15 syslog.0:Nov 7 18:33:15 c3209 init: tty5 process (4155) killed by signal 15 syslog.0:Nov 7 18:33:15 c3209 init: tty6 process (4156) killed by signal 15 syslog.0:Nov 7 18:33:20 c3209 hcid[4796]: Got disconnected from the system message bus syslog.0:Nov 7 18:33:22 c3209 exiting on signal 15 syslog.0-Nov 7 18:34:50 c3209 syslogd 1.4.1#18ubuntu6: restart. syslog.0-Nov 7 18:34:50 c3209 kernel: Inspecting /boot/System.map-2.6.17-10-generic -- Session bug https://launchpad.net/bugs/67728 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs