Comment 10 for bug 529882

Thanks for the gdm logs. It seems gdm has some difficulties with ConsoleKit, but I'm afraid I need more details, at least the ck-list-sessions and ps aux output.

If other people want to provide information, here are instructions how to collect everything interesting:

 * Open a Terminal and do

      echo 'rm -r /var/log/gdm/* /var/log/Xorg*' | sudo -s

 * reboot
 * log in as one user
 * attempt to switch user

You should now be on a black screen, as reported. Press Control-Alt+F1, log into the text console, and do

  ps aux > /tmp/ps.txt
  who > /tmp/who.txt
  ck-list-sessions > /tmp/ck.txt 2>&1
  sudo tar czvf ~/logs.tar.gz /var/log/gdm /var/log/Xorg* /var/log/kern.log /tmp/ps.txt /tmp/who.txt /tmp/ck.txt

The press Control-Alt-F7 or Control-Alt-F8 to get back to your original session (if neither works, just restart the computer with Control-Alt-Delete), and attach logs.tar.gz here.

Thanks!