[Bug 27816] DVI corrupted output on dual setup VGA + DVI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=27816

--- Comment #7 from Alex Deucher <agd5f at yahoo.com> 2010-04-23 11:53:17 PDT ---
The dynpm stuff is disabled when you have multiple heads active as it needs to
change the clocks during the vertical blanking interval to avoid graphical
glitches.  With two heads, your blanking intervals are rarely if ever aligned.

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