Apologies for the delay-- I needed our Ubuntu kernel for a number of weeks and had to pause this bisection.
I have booted into this kernel: $ cat /proc/version Linux version 4.3.0-040300-generic (jsalisbury@gomeisa) (gcc version 5.3.1 20160311 (Ubuntu 5.3.1-11ubuntu1) ) #201603151533 SMP Tue Mar 15 19:37:15 UTC 2016 Since the bug doesn't always show itself right away, I will want to use the kernel for at least several hours. I'll report back as soon as I see the bug or after using the computer throughout the day. -- 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