Using ubuntu 12.04 with gnome. After the screen has been locked (manually, or after resuming from suspend), it takes more then 60 seconds for the password prompt to appear. This happens with gnome and gnome classic.
It might be related to gnome-screensaver-dialog, at least this is a process running while I can't log in.
I am a bit clueless on how to debug this, as I am not sure how to monitor this. Any solution or debugging tips would be appreciated.
Oddly enough, right now, after reboot, this problem does not arise. I still don't consider it solved, as this problem has been appearing and disappearing. I have been booting befor (number one tipp for strange problems ;)), but that did not solve the problem, so I guess booting is not the answer.
Update: After a new boot, the problem is there again.