KDE close session hangs computer.

[Rafael Belmonte]

Binary package hint: kdm

Running Kubuntu 9.04 (development branch).
I logout from KDE.
It is expected to go to kdm.
What happens?
X session hangs, it results in tty consoles, tty7 is locked, it only shows: "* Reloading Postfix configuration..."
I run 'kdm restart' and I go to kdm.
I log in KDE.
I close KDE session for second time.
It is expected to go to kdm.
What happens?
Screen keep black, I cannot change to tty terminals, Crtl + Alt + BackSpace do nothing, Alt + Impr + B does not restart computer, but power button starts a system shutdown as normally.

kdm version: 4:4.2.1a-0ubuntu3
kdelibs version: 4:4.2.1a-0ubuntu2
xserver-xorg: 1:7.4~5ubuntu15
xserver-xorg-core: 2:1.6.0-0ubuntu1
xserver-xorg-video-intel: 2:2.6.1-1ubuntu4

Arch: amd64.

[Bryce Harrington (bryce)]

Not enough information to troubleshoot as an xorg-server bug. See http://wiki.ubuntu.com/X/Reporting for instructions on reporting X issues.

[Rafael Belmonte (eaglescreen)]

At session close, X seems to hangs, Bloq Mayus key does not light keyboard led, tty consoles are not visible, but Alt + Impr + k close X server and tty terminals come accessible.
After this, /etc/init.d/kdm start report that kdm is still running, /etc/init.d/kdm restart, starts kdm and X server again.
After ding it I attach all these log files:

[Jonathan Thomas (echidnaman)]

Same assertion as bug 347587.