I did something as close as you can get to a complete reinstall: I purged everything except for the bare minimum (those packages on which ubuntu-minimal depends on), next I cleaned up the /etc dir and removed all config files which had no owner and did not belong to an installed package, including, of course, the gdm subdirectory. Next I installed ubuntu-desktop. At first, it seemed fine, I could log on. The next thing I did was to run language-selector to get the localisation back (in installed the de languages packages) and I followed the suggestion to install the nvidia proprietary drivers (which btw failed).
Now, upon reboot, I was back in the same old mess: I was unable to log on, gdm went into the same loop as before I did the cleanup. So this appears to be something serious and reproducible, deserving some real dev attention, else who knows how many people will be affected one 10.4 get out of the door officially? -- pam_unix(gdm:auth): conversation failed https://bugs.launchpad.net/bugs/516520 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs