Switching between users works perfectly well in Ubuntu 12.10. I tested both the guest-account and a second user account, and fast-user-switching from the applet works well. The display flashes couple of time due to mode change, but the up-coming Wayland display manager will fix that too.
I have Nvidia GeForce GT 525M graphics chipset with these drivers: $ dpkg -l | grep -i nvidia ii nvidia-current 304.64-0ubuntu1~quantal~xup1 i386 NVIDIA binary Xorg driver, kernel module and VDPAU library ii nvidia-current-dev 304.64-0ubuntu1~quantal~xup1 i386 NVIDIA binary Xorg driver development files ii nvidia-settings 304.64-0ubuntu1~quantal~xup1 i386 Tool for configuring the NVIDIA graphics driver I just can't wait for Wayland display manager. -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/160264 Title: [nvidia] compiz displays white screen when locked To manage notifications about this bug go to: https://bugs.launchpad.net/dell/+bug/160264/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp