[Bug 12083] DVI output on Mobility 9000 (M9) (ThinkPad R51) does not work

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=12083





------- Comment #7 from agd5f at yahoo.com  2007-08-28 06:12 PST -------
(In reply to comment #6)

> thank you very much. This helps a lot.
> 
> But I do not really understand why this is suitable as an output
> option. If I understand it correctly, the problem comes from
> invalid BIOS entries for the PLL tables.

not necessarily invalid (although there are probably cases of that), it depends
a lot on the clock cut-offs for each pll setting.

> 
> So this is IMHO a model specific (or even hardware specific when
> BIOS is counted as part of hardware) setting and this may be better
> set by an xorg.conf-Option in the device section.
> 
> Making this an output attribute will cause in my understanding that
> the server will start with probably wrong values for the PLLs because
> the setting with xrandr is possible only after the server came up.
> 
> I understand that it is a goal to make as much as possible
> configurable by xrandr but I think there may remain some fundamental
> hardware specific options (PCI, AGP and maybe also such BIOS options).
> 

It probably makes sense to make it a driver option as well you you can force
the default to be either the bios or driver table, but I've seen cases where
the bios tables work better for some monitors and the driver tables work better
for others on the same card.  It really depending on the mode.  I'll go ahead
and add a driver option as well to change the default.


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