Yes, installing the proprietary AMD fglrx driver solves this problem. That's why I am currently using fglrx-legacy 8.97.100.7 on Ubuntu 13.04.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/952486 Title: 1002:9591 [Lenovo ThinkPad T500] External monitor on display port has no sync with radeon driver To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/952486/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
