I had a similar problem with my nvidia GeForceFX 5200 (using inofficial 9xxx series drivers and built in AIGLX). If i switched to VT and then back to X, all I got was a movable pointer over a black screen, and no access except through SSH. After looking trough a few guides I tried unloading the 'eeprom' module (and removing it from /etc/modules), and everything was happy again. :) That module apparently often causes problems with AIGLX and the result is mostly a black screen.
Jocke -- [edgy] Freeze when switching to VT in AIGLX https://launchpad.net/bugs/63584 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
