I used to have this issue but have not experienced it for years. Currently running a clean install of 12.10 with the recommended nvidia driver (304.51) with no problems.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/160264 Title: [nvidia] compiz displays white screen when locked Status in The Dell Project: Fix Released Status in “compiz” package in Ubuntu: Fix Released Status in “gdm” package in Ubuntu: Invalid Status in “gnome-screensaver” package in Ubuntu: Incomplete Status in “linux-restricted-modules-2.6.24” package in Ubuntu: Invalid Status in “nvidia-graphics-drivers-180” package in Ubuntu: Fix Released Status in “xorg-server” package in Ubuntu: Fix Released Status in “compiz” source package in Hardy: Fix Released Status in “gdm” source package in Hardy: Invalid Status in “gnome-screensaver” source package in Hardy: Invalid Status in “linux-restricted-modules-2.6.24” source package in Hardy: Won't Fix Status in “nvidia-graphics-drivers-180” source package in Hardy: Fix Released Status in “xorg-server” source package in Hardy: Fix Released Bug description: Binary package hint: compiz My computer has two users, and they are often logged onto X simultaneously. I am one of the users and I use compiz. The problem is that when I lock my screen and switch to other VT (using ctrl+alt+fN or Fast User Switch Applet), then back to mine I get a white screen instead of Gnome unlock dialog. However, the mouse pointer still exists and even changes to cursor-like when I point the area where password text box should be located. I am able then to enter my password (the screen remains completely white) and to press enter. After that I am returned to my desktop as if nothing has happened. I'm running Gutsy. compiz version is 1:0.6.0+git20071008-0ubuntu1.1. I have an nvidia video card with nvidia-glx-new 100.14.19+2.6.22.4-14.9 installed. TEST CASE: 1. install hardy on a system with nvidia hardware 2. install proprietary nvidia driver 3. run compiz 4. create a additional user B 5. use the "fast-user-switching" applet to switch to that user B 6. switch back to user A 7. verify that the screen is white 1. install compiz-core from hardy-proposed 2. restart the X session 3. use the "fast-user-switching" applet to switch to user B 4. switch back to user A 9. verify that the screeen is not white 10. verify that you can not break out of the lock (compare to bug #145123) by pressing key combinations like "alt-tab", "ctrl-alt-arrow" etc 11. Verify that no notifcation daemon message appear when the screen is locked over the log (see comment #95) Steps to reproduce : 1. Login to user 1 2. Use the fast user switcher applet to login to user 2 3. Logout from user 2 session Result : You get a white screen. You have to type your password and the white screen will disappears. To manage notifications about this bug go to: https://bugs.launchpad.net/dell/+bug/160264/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp