[Bug 47007] HDMI monitor polling causing 100ms rendering stalls

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=47007

--- Comment #33 from Tvrtko Ursulin <tvrtko.ursulin at onelan.co.uk> 2012-03-16 01:47:31 PDT ---
(In reply to comment #32)
> (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.

Ok, I misunderstood would would happen after applying this quirk. I though we
would still have three connectors, just that DVI-D would become DVI-I. In fact
what should happen is that DVI-D becomes DVI-I and VGA vbios entry is ignored
for this board?

Is this something which can be done in radeon_atom_apply_quirks? I'll give it a
go.

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