Hi, Sorry for the long delay in answering your message.
I have just upgraded to Intrepid and managed to reproduce the issue with some differences I would like to mention here: 1. My previous video card died and I get a new one - ASUS EAH3650 which uses ATI RADEON HD 3650 GPU. Here is a string I copied from lspci: 01:00.0 VGA compatible controller: ATI Technologies Inc Mobility Radeon HD 3600 Series 2. Now the steps to reproduce differ a little. When I do a log off it works as expected. But each time I switch users the screen goes black and the systems turns irresponsible. Attached you will find my /var/log/Xorg.0.log file. Please let me know if any additional information is needed. Thanks, Felix ** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/19223985/Xorg.0.log -- [fglrx] Black screen on Logoff, System completely unresponsive https://bugs.launchpad.net/bugs/241176 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