On 6/6/06, Vassilis Virvilis [off-list ref] wrote:

Alex Deucher wrote:

quoted

On 6/5/06, Vassilis Virvilis [off-list ref] wrote:

The reason the savage xorg drver uses the bios is because almost every
panel they connect to the chip seems to require fairly custom timings.
the twisters and prosavages are even worse than the discrete chips.
Also, only the bios seems to know the magic incantation necessary for
dualhead.  I tried for a while to add non-bios mode setting to crtc2
without much luck.

I don't care for dualhead right now. I can imagine it is 4 times weirder
than my current setup. What is crtc*?

twisters/prosavages can't do dualhead anyway. crtc stands for crt
controller.  it's just another name for a display controller (ie,
thing that scans out the image).

quoted

For a short term fix, just program the registers with the new values
from the bios.  You may be able to just get away with adjusting the
crtc1 dclk (SR12, SR13, SR29).

I will try that. Thanks for the suggestion.

A real fix may require special

quoted

calculations or tables for different chip/panel combos.

I will try for both of my monitors and I will report here any
success or failure unless of course I am told that this info is
not desirable.

Sounds good.

Do you know if changing the number of colors 256/64K/16M requires
clock adjustments (SR12, SR13, SR29)?

It shouldn't.

Thanks for answering.

No problem.

Alex

      .bill