I've tried with the Vesa driver and I get exactly the same behaviour - this is almost certainly a kernel bug.
Note: I've opened a new bug with a link back to this one. The new bug is filed against the kernel, but has, so far, had no response. -- [iGM45] Connecting external monitor causes system to lock up. https://bugs.launchpad.net/bugs/319717 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