Tested mainline and the Mini-DP to VGA adaptor behaved correctly allowing me 1920x1200 on my external display.
uname -a Linux moon127-MacBookAir 4.3.0-040300-generic #201511020949 SMP Mon Nov 2 14:50:44 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date MBA51.88Z.00EF.B03.1506081623 06/08/2015 ** Tags added: kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- 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 ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs