[Bug 21857] DVI-0 Out of Range, where DVI-1 works on a FireGL.

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=21857





--- Comment #8 from Mathias Fröhlich <Mathias.Froehlich at web.de>  2009-10-18 14:07:55 PST ---
Hmm, yes I have seen that. And I expext that or something like that toe
apropriate way to ajust the slight remaining flicker once the first output
starts working at all.

But I fear to make that making dvi1 work is more than just slightly tweaking
the dividers.

We are talking here about being off by a *factor* *of* *two*!

I fear that there is more wrong than just tweaking things.
Note that the output of the pll divider computation makes sense for the inputs
AFICT. That holds for both outputs. But to make dvi1 display something I need
to take the result that makes sense divide that result by 2 and than it
magically works being than a factor of two away from what makes sense so far?

May be there is some additional frequency divider on some of the outputs?
May be we need to call an other bios call that tells about some more
constraints?

Ideas?

Mathias


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