Maarten, This actually makes lots of sense. I had it happen again last night, and after checking logs, it was indeed Xorg losing control of direct rendering. I can move the mouse around the black screen, and watch the cursor change as it goes over links, and various other things, and I can still type in whatever window was active.... I just can't see any of it. Even dropping to TTY1, the mouse cursor is still visible, and keystrokes still get dumped to the active window, even though I dropped to another tty. Also I am on Intel hardware.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1247189 Title: [13.10] Ubuntu freezes completely when switching user To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1247189/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp