Same thing for me as well. It doesn't freeze until something is visually altered or clicked on the desktop. I've checked dmesg and syslog only to find no output of any error.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1562076 Title: Ubuntu freezes a few seconds after plugin a screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1562076/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs