[Bug 21050] Radeon driver displays nothing on DVI-0, but works fine on DVI-1

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=21050





--- Comment #12 from Phil Armstrong <phil at kantaka.co.uk>  2009-04-06 10:09:43 PST ---
(In reply to comment #11)
> Coherent has nothing to do with single link vs. dual link, rather it affects
> how the clock is recovered in the monitor.  Most new monitors prefer coherent,
> however, that's not always the case.

Indeed, but 1920x1200 at 60Hz can't be done in non-coherent single-link, whereas
it just fits (with reduced blank timings) in the coherent mode available
bandwidth IIRC.


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