Just for information if it can help : if I disable in "User switcher preferences" the "Lock the screen after switching users" (for each user) I get no more the white screen issue.
Gutsy+Nvidia with Compiz enabled. -- No "New Login" for user with Desktop effects enabled https://bugs.launchpad.net/bugs/107109 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs