https://bugs.freedesktop.org/show_bug.cgi?id=27314
--- Comment #21 from Alex Deucher agd5f@yahoo.com 2011-01-05 14:59:46 PST --- You'll have to tweak the link training algo (dp_link_train() in atombios_dp.c) until the monitor accepts the link. Unfortunately, there's not a lot I can do without access to the problematic monitor.