OK, I removed the Nouveau driver as well and X now starts with the NV driver. I can freely login/logout and switch between KDE/fluxbox with no black screen lockups. So this once more appears to be a video driver issue.
To recreate on my system. 1. Boot into X running either Nvidia 96 series or Nouveau driver with KDM. 2. Login 3. Logout/KDE or Exit/Fluxbox -> return to KDM login screen 4. Login 5. Attempt logout/exit and you get black screen lockup -- Logout after switch user causes black screen and disables keyboard and mouse https://bugs.launchpad.net/bugs/585685 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-96 in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

