https://bugs.freedesktop.org/show_bug.cgi?id=47007
--- Comment #32 from Alex Deucher agd5f@yahoo.com 2012-03-15 10:41:15 PDT --- (In reply to comment #31)
It is a single DVI-I physically.
But even identifying it would not change anything with regards to polling induced rendering stalls, right?
Well, shared_ddc wouldn't apply in that case since there is only one connector, and for better or worse we wouldn't be polling since the connector does have an HPD pin (even if it doesn't necessarily work reliably with the analog part of a DVI-I connector). So fixing that would avoid the polling stalls on your particular board.