Verified with fglrx 2:15.200-0ubuntu on 14.04.1 stock image, external monitor works as expected in all four modes. I will mark this bug as "Fix-released" Thanks!
Note, for the bug mentioned in comment #9, it should be bug 1379217 ** Changed in: hwe-next Status: Confirmed => Fix Released ** Changed in: fglrx-installer-updates (Ubuntu) Status: Triaged => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1379237 Title: AMD Mars XTX [Radeon HD 8790M] [1002:6606] Black screen on external display (extended mode) with fglrx To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1379237/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs