I'm working on a Panasonic Toughbook CF-C1 that also has this issue, though I can only rotate the display manually on this model (not sure by other thinkpad comments if it is implying an automatic screen rotation, perhaps by gyroscope, so I wanted to be sure to make the distinction just in case). Rotating it to normal, clockwise, counterclockwise gives no issue, 180 flip causes same black screen problem. Ctrl+Alt+F1 followed by Ctrl+Alt+F7 does fix this for me, though I'll note that switching back to Normal rotation after being on 180 rotation will cause the same black screen problem again, warranting another Ctrl+Alt+... etc. to return it to normal.
Using Ubuntu 14.04 on a 64-bit system. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to x11-xserver-utils in Ubuntu. https://bugs.launchpad.net/bugs/1451798 Title: black screen (but with cursor) after rotating by 180 degrees To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/x11-xserver-utils/+bug/1451798/+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
