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I am using Kubuntu feisty. Updated to the most recent packages.

When I reboot or logout from the current session I get a blank screen
which doesnt show up any of the login fields (username, password, submit
buttons etc.) for a long time. After say around 20-25 min automatically
the login fields show up and I am able to login.

Also sometimes when I logout I dont even see the screen at all. The
screen just hangs showing a blinking cursor at the top left corner.

I see the below errors in the syslog:


Apr 23 20:08:05 prag-lnx1 kdm_greet[5961]: Can't open default user face
Apr 23 20:14:56 prag-lnx1 kdm_greet[5961]: Internal error: memory corruption 
detected
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): starting (version 2.18.0.1), pid 
6027 user 'jedi'
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/etc/gconf/gconf.xml.mandatory" to a read-only configuration 
source at position 0
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readwrite:/home/jedi/.gconf" to a writable configuration source at 
position 1
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only configuration 
source at position 2
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/var/lib/gconf/debian.defaults" to a read-only configuration 
source at position 3
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/var/lib/gconf/defaults" to a read-only configuration source at 
position 4
Apr 23 20:14:59 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readwrite:/home/jedi/.gconf" to a writable configuration source at 
position 0
Apr 23 20:16:16 prag-lnx1 gconfd (jedi-6027): Exiting
Apr 23 20:16:16 prag-lnx1 kdm: :0[6755]: IO Error in XOpenDisplay
Apr 23 20:16:16 prag-lnx1 kdm[5407]: X server for display :0 terminated 
unexpectedly
Apr 23 20:16:16 prag-lnx1 kdm[5407]: Unable to fire up local display :0; 
disabling.
Apr 23 20:17:01 prag-lnx1 /USR/SBIN/CRON[6773]: (root) CMD (   cd / && 
run-parts --report /etc/cron.hourly)


Also I see the following messages in the .xsession-errors


Apr 23 17:35:31 prag-lnx1 hcid[5246]: Bluetooth HCI daemon
Apr 23 17:35:31 prag-lnx1 kernel: [   41.066141] Bluetooth: Core ver 2.11
Apr 23 17:35:31 prag-lnx1 kernel: [   41.066211] NET: Registered protocol 
family 31
Apr 23 17:35:31 prag-lnx1 kernel: [   41.066215] Bluetooth: HCI device and 
connection manager initialized
Apr 23 17:35:31 prag-lnx1 kernel: [   41.066220] Bluetooth: HCI socket layer 
initialized
Apr 23 17:35:31 prag-lnx1 hcid[5246]: Starting SDP server
Apr 23 17:35:32 prag-lnx1 NetworkManager: <debug info>^I[1177329932.006059] 
nm_hal_device_added (): New device added (hal udi is 
'/org/freedesktop/Hal/devices/platform_bluetooth').
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: Reading included configuration file: 
/etc/xinetd.d/chargen [file=/etc/xinetd.conf] [line=14]
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: Reading included configuration file: 
/etc/xinetd.d/daytime [file=/etc/xinetd.d/daytime] [line=28]
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: Reading included configuration file: 
/etc/xinetd.d/discard [file=/etc/xinetd.d/discard] [line=26]
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: Reading included configuration file: 
/etc/xinetd.d/echo [file=/etc/xinetd.d/echo] [line=25]
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: Reading included configuration file: 
/etc/xinetd.d/time [file=/etc/xinetd.d/time] [line=26]
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing chargen
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing chargen
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing daytime
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing daytime
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing discard
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing discard
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing echo
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing echo
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing time
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: removing time
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: xinetd Version 2.3.14 started with 
libwrap loadavg options compiled in.
Apr 23 17:35:32 prag-lnx1 xinetd[5255]: Started working: 0 available services
Apr 23 17:35:32 prag-lnx1 kernel: [   41.109539] Bluetooth: L2CAP ver 2.8
Apr 23 17:35:32 prag-lnx1 kernel: [   41.109545] Bluetooth: L2CAP socket layer 
initialized
Apr 23 17:35:32 prag-lnx1 kernel: [   41.234812] Bluetooth: RFCOMM socket layer 
initialized
Apr 23 17:35:32 prag-lnx1 kernel: [   41.234830] Bluetooth: RFCOMM TTY layer 
initialized
Apr 23 17:35:32 prag-lnx1 kernel: [   41.234833] Bluetooth: RFCOMM ver 1.8
Apr 23 17:35:32 prag-lnx1 anacron[5320]: Anacron 2.3 started on 2007-04-23
Apr 23 17:35:32 prag-lnx1 anacron[5320]: Normal exit (0 jobs run)
Apr 23 17:35:32 prag-lnx1 /usr/sbin/cron[5347]: (CRON) INFO (pidfile fd = 3)
Apr 23 17:35:32 prag-lnx1 /usr/sbin/cron[5348]: (CRON) STARTUP (fork ok)
Apr 23 17:35:32 prag-lnx1 /usr/sbin/cron[5348]: (CRON) INFO (Running @reboot 
jobs)
Apr 23 17:35:37 prag-lnx1 kdm_greet[5449]: Can't open default user face
Apr 23 17:55:19 prag-lnx1 -- MARK --
Apr 23 18:15:19 prag-lnx1 -- MARK --
Apr 23 18:17:01 prag-lnx1 /USR/SBIN/CRON[5474]: (root) CMD (   cd / && 
run-parts --report /etc/cron.hourly)
Apr 23 18:35:19 prag-lnx1 -- MARK --
Apr 23 18:35:22 prag-lnx1 named[4828]: Cleaned cache of 0 RRsets
Apr 23 18:35:22 prag-lnx1 named[4828]: USAGE 1177333522 1177329922 CPU=0u/0s 
CHILDCPU=0u/0s
Apr 23 18:35:22 prag-lnx1 named[4828]: NSTATS 1177333522 1177329922
Apr 23 18:35:22 prag-lnx1 named[4828]: XSTATS 1177333522 1177329922 RR=1 RNXD=0 
RFwdR=0 RDupR=0 RFail=0 RFErr=0 RErr=0 RAXFR=0 RLame=0 ROpts=0 SSysQ=1 SAns=0 
SFwdQ=0 SDupQ=0 SErr=0 RQ=0 RIQ=0 RFwdQ=0 RDupQ=0 RTCP=0 SFwdR=0 SFail=0 
SFErr=0 SNaAns=0 SNXD=0 RUQ=0 RURQ=0 RUXFR=0 RUUpd=0
Apr 23 18:55:19 prag-lnx1 -- MARK --
Apr 23 19:15:20 prag-lnx1 -- MARK --
Apr 23 19:17:01 prag-lnx1 /USR/SBIN/CRON[5484]: (root) CMD (   cd / && 
run-parts --report /etc/cron.hourly)
Apr 23 19:35:20 prag-lnx1 -- MARK --
Apr 23 19:35:22 prag-lnx1 named[4828]: Cleaned cache of 0 RRsets
Apr 23 19:35:22 prag-lnx1 named[4828]: USAGE 1177337122 1177329922 CPU=0u/0s 
CHILDCPU=0u/0s
Apr 23 19:35:22 prag-lnx1 named[4828]: NSTATS 1177337122 1177329922
Apr 23 19:35:22 prag-lnx1 named[4828]: XSTATS 1177337122 1177329922 RR=1 RNXD=0 
RFwdR=0 RDupR=0 RFail=0 RFErr=0 RErr=0 RAXFR=0 RLame=0 ROpts=0 SSysQ=1 SAns=0 
SFwdQ=0 SDupQ=0 SErr=0 RQ=0 RIQ=0 RFwdQ=0 RDupQ=0 RTCP=0 SFwdR=0 SFail=0 
SFErr=0 SNaAns=0 SNXD=0 RUQ=0 RURQ=0 RUXFR=0 RUUpd=0
Apr 23 19:55:20 prag-lnx1 -- MARK --
Apr 23 20:07:43 prag-lnx1 kdm_greet[5449]: Internal error: memory corruption 
detected
Apr 23 20:07:45 prag-lnx1 gconfd (jedi-5545): starting (version 2.18.0.1), pid 
5545 user 'jedi'
Apr 23 20:07:45 prag-lnx1 gconfd (jedi-5545): Resolved address 
"xml:readonly:/etc/gconf/gconf.xml.mandatory" to a read-only configuration 
source at position 0
Apr 23 20:07:45 prag-lnx1 gconfd (jedi-5545): Resolved address 
"xml:readwrite:/home/jedi/.gconf" to a writable configuration source at 
position 1
Apr 23 20:07:45 prag-lnx1 gconfd (jedi-5545): Resolved address 
"xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only configuration 
source at position 2
Apr 23 20:07:45 prag-lnx1 gconfd (jedi-5545): Resolved address 
"xml:readonly:/var/lib/gconf/debian.defaults" to a read-only configuration 
source at position 3
Apr 23 20:07:45 prag-lnx1 gconfd (jedi-5545): Resolved address 
"xml:readonly:/var/lib/gconf/defaults" to a read-only configuration source at 
position 4
Apr 23 20:07:53 prag-lnx1 gconfd (jedi-5545): Resolved address 
"xml:readwrite:/home/jedi/.gconf" to a writable configuration source at 
position 0
Apr 23 20:08:02 prag-lnx1 kdm[5407]: X server for display :0 terminated 
unexpectedly
Apr 23 20:08:05 prag-lnx1 kdm_greet[5961]: Can't open default user face
Apr 23 20:14:56 prag-lnx1 kdm_greet[5961]: Internal error: memory corruption 
detected
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): starting (version 2.18.0.1), pid 
6027 user 'jedi'
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/etc/gconf/gconf.xml.mandatory" to a read-only configuration 
source at position 0
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readwrite:/home/jedi/.gconf" to a writable configuration source at 
position 1
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only configuration 
source at position 2
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/var/lib/gconf/debian.defaults" to a read-only configuration 
source at position 3
Apr 23 20:14:58 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readonly:/var/lib/gconf/defaults" to a read-only configuration source at 
position 4
Apr 23 20:14:59 prag-lnx1 gconfd (jedi-6027): Resolved address 
"xml:readwrite:/home/jedi/.gconf" to a writable configuration source at 
position 0
Apr 23 20:16:16 prag-lnx1 gconfd (jedi-6027): Exiting
Apr 23 20:16:16 prag-lnx1 kdm: :0[6755]: IO Error in XOpenDisplay
Apr 23 20:16:16 prag-lnx1 kdm[5407]: X server for display :0 terminated 
unexpectedly
Apr 23 20:16:16 prag-lnx1 kdm[5407]: Unable to fire up local display :0; 
disabling.
Apr 23 20:17:01 prag-lnx1 /USR/SBIN/CRON[6773]: (root) CMD (   cd / && 
run-parts --report /etc/cron.hourly)
stdin: is not a tty
Xsession: X session started for root at Thu Mar 29 19:09:47 IST 2007
startkde: Starting up...
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
kbuildsycoca running...
DCOP Cleaning up dead connections.
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 154
  Major opcode:  143
  Minor opcode:  3

** Affects: kdebase (Ubuntu)
     Importance: Undecided
         Status: Confirmed

-- 
login screen - input fields wont come up for a long time
https://bugs.launchpad.net/bugs/109292

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