Re: Twister savagefb doesn't sync

[Vassilis Virvilis <vasvir@iit.demokritos.gr>]

Alex Deucher wrote:
> On 6/5/06, Vassilis Virvilis <vasvir@iit.demokritos.gr> 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*?

> 
> 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
> 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.

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

Thanks for answering.

      .bill