kdm does not start (karmic, kde 4.3.3)

[dm]

Binary package hint: kdebase-workspace

I have upgraded my Karmic from KDE 4.3.2 to 4.3.3. Everything worked like a charm. But on Nov, 17 there was a Ubuntu upgrade (Kernel 2.6.31.15, Xorg, ...). After that I've done a reboot an my system hang at starting the login manager (KDM). I have the same behavior on my laptop an on my pc. My laptop uses intel graphics and kernel based mode setting. I can't reach any console. The screen is blank or has some stripes. The only thing I can do is a shutdown via power button. On my pc I get the message that x could not be startet and some options will be shown with low screen resolution. If I choose the failsafe one the KDM starts as usually and the screen resolution is changed to full (1980x1200). The pc has a NVidia graphics card build in. If I choose the GDM as default everything woks fine. No errors, no freezes. What is happend? It seems that KDM has some troubles but why?

DM

[Jonathan Thomas (echidnaman)]

Most likely the xorg update that broke things.

[Bryce Harrington (bryce)]

Hi jan-rauberg,

Thanks for including the attached files. Could you also include your /var/log/Xorg.0.log (or Xorg.0.log.old) from after reproducing the issue?

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[dm (jan-rauberg)]

This is the Xorg.0.log.old file.

[dm (jan-rauberg)]

This is the lspci -vvnn print.

[dm (jan-rauberg)]

Ok, I setup my pc at home (Corei7-860, 8GB, GeForce7600GS) with a fresh Karmic installation. After installing KDE 4.3.2 everythings was fine. Yesterday came some xorg updates and finaly my pc won't start correctly. I use the KDM and everytime when it tries to start I get the message, that the xserver couldn't start and it offers me some options. When I choose the failsave mode the xserver starts again and it runs as if nothings happened before. What is this? I use only supported repositories. I use Ubuntu for some years as my produktion system, but such troubles I never had before. I thing such worse things may not happen. My Thinkpad runs only with GDM and my PC too. With GDM I can't use any suspend mode from KDE. I love my KDE and I want to use it with the matching KDM! Sorry, but I'm really frustated.

[Kevin Christmas (kachristmas)]

Looks a lot like this issue https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/491483

[barnex (barnex)]

I can confirm this on my macbook 1,1 with an intel GMA950. X broke after some update: I also had only stripes on the screen and this even affected all tty consoles. I could only boot back into a console by first chrooting from a live CD and removing kdm. The problem seems indeed xorg/driver related rather than something in KDE, since starting gnome/fluxbox/... also does also not work.

Booting into a previous kernel (2.6.31-14), which worked fine before the update also had a broken X after the update.

[barnex (barnex)]

This might indeed be a duplicate of https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/491483

I did have gdm installed but was using kdm, which might have caused the problem.