Okay, thanks. That's a video driver problem then, or a missing blacklist in compiz.
** Changed in: linux-restricted-modules-2.6.24 (Ubuntu) Sourcepackagename: gdm-guest-session => linux-restricted-modules-2.6.24 Status: Incomplete => New ** Summary changed: - Black screen after clicking to start a Guest Session if "guest" user already exists + Black screen when switching users ** Changed in: fglrx-installer (Ubuntu) Sourcepackagename: linux-restricted-modules-2.6.24 => fglrx-installer -- Black screen when switching users https://bugs.launchpad.net/bugs/266911 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs