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Hello,

On Sep 1, 2007, at 00:44, khym@azeotrope.org wrote:

> I'm not sure... I don't hear any difference, but it's a LCD screen,
> and I haven't been able to tell the difference between blank and 
> powered
> off on those (I can usually tell for a CRT though)

Hmm, in power saving mode the backlight should be turned off.

>> please run 'ofctl -p' and post the output, maybe OpenFirmware has a
>> hint here ( like PLL parameters in the radeon's device properties )
>
> OK, ofctl -p output follows:
...
> ff95bcc0: /pci@f0000000/ATY,Rage6ag@10

Odd node name for a radeon...

> vendor-id               00001002 ........ ........ ........   ....
> device-id               00005144 ........ ........ ........   ..QD

... but that's indeed an R100...

> ATY,RefCLK              00006978 ........ ........ ........   ..ix
> ATY,MCLK                00028870 ........ ........ ........   ...p
> ATY,SCLK                00028870 ........ ........ ........   ...p

... and this is likely the information I was looking for. If radeonfb 
guesses the wrong reference clock then all the video frequencies would 
be off too. So I'll add code to pass this information to radeonfb if 
available, let's see if that helps.

have fun
Michael
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