While I can't be 100% sure cause the issue is intermittent, it seems that this kernel does not have the bug:
$ cat /proc/version Linux version 4.3.0-040300-generic (jsalisbury@gomeisa) (gcc version 5.3.1 20160225 (Ubuntu 5.3.1-10ubuntu2) ) #201603030935 SMP Thu Mar 3 14:39:41 UTC 2016 $ uptime 08:44:12 up 3 days, 19 min, 3 users, load average: 1.43, 0.68, 0.57 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1547619 Title: Intermittent screen blinking with 4k external mini display port with 4.4 kernels To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1547619/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
