https://bugs.freedesktop.org/show_bug.cgi?id=45968
--- Comment #8 from Tobias Diedrich ranma+freedesktop@tdiedrich.de 2012-02-13 08:28:23 PST --- (In reply to comment #7)
(In reply to comment #6)
Does it work ok with a pre3.3 kernel (e.g., 3.2, 3.1, etc.)? If so, does reverting this commit fix the issue?
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=...
It didn't work with 3.2.4, which is why tried 3.3-rc.
Looking at the mentioned patch I should actually retry HDMI, which with 3.2.4 only supported up to 1920xsomething