From: stormreaver
Written: 2010-05-22 09:30:09.178875
Subject: Cannot start ksmserver

My system hard drive started its death-spiral yesterday, so I bought a new drive to replace it. I reinstalled Kubuntu 10.4 and all my applications, but could not boot into KDE because of an NVIDIA driver problem.

I already had a newish driver downloaded from NVIDIA's web site, so I installed it. When I rebooted, I ended up with a message that ksmserver could not be started.

I used dpkg-reconfigure xserver-xorg, but that did not help.

Running ksmserver from text mode showed that I had a versioning conflict between the NVIDIA kernel module and the kernel itself.

I ran apt-get remove nvidia-current, followed by apt-get install nvidia-current. After the installation, ksmserver complained that GLX versions were in conflict.

I ran the NVIDIA installer again, with the "--uninstall" option at the end of the command line. I then ran apt-get remove nvidia-current, followed by apt-get install nvidia-current once again.

I then ran ksmserver from text mode, and it complained that it could not connect to the X server. Since I already had the GUI login screen waiting on virtual terminal 8 (VT8, reached with ALT-F8), I switched to it, pressed ALT-E to restart the X server, and logged in.

At that point, I was able to log into KDE and go about my usual business. So far, everything seems to be fixed.
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