[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 #14 from Phil Armstrong <phil at kantaka.co.uk>  2009-04-06 11:07:17 PST ---
(In reply to comment #13)

> The timing is the same whether you are using coherent mode or not.  Some
> monitors work better with coherent mode other do not.  Does disabling coherent
> mode help?

OK.

Sadly not.

However, further experimentation with windows has revealed that if the monitor
is plugged into DVI-0 at boot, then I get a blank screen at startup. However,
if I startup with the monitor plugged into DVI-1 & then transfer it to DVI-0
after logging in, then it picks up the display and everything works.

Weird. Maybe I actually do have a duff card & something is right on the edge
for this card / monitor combination for DVI-0. 


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