I too face the same issue. As a result the mouse keeps flickering and at times becomes almost invisible due to the very high rate of flickering, affecting the normal use of the system. I feel this is a critical issue. I found a work around here http://askubuntu.com/questions/398903 /unknown-display-besides-laptop-built-in-display-old-question-but-with- no-answer/399485
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1278054 Title: [13.10] Ubuntu detects a non-existing screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1278054/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
