Kernel bisecting: We know it's fixed in 4.3.0-040300-201511020949 Stepping up through kernels:
Current wily kernel (with displayport issue): 4.2.0-17.21 Ubuntu-4.2.0-17.21 4.2.3 dist-upgrade gets us to: 4.2.0-18.22 Ubuntu-4.2.0-18.22 4.2.3 - same displayport issue v4.2.6-wily - 4.2.6-040206.201511091832 - same displayport issue v4.3-rc1-unstable - 4.3.0-040300rc1.201509160642 - displayport working correctly, eg 1920x1200 on external display. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1510021 Title: After upgrade from vivid to wily external monitor has only limited resolutions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1510021/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
