On Sat, Oct 09, 1999 at 04:57:34PM +0000, Marcus Sundberg wrote:
> [EMAIL PROTECTED] wrote:
> > Anyway, if anyone wants to give it a try, tell me, and I'll put it up on the
> > web. It should work for all Mystiques it worked for before. The G200 code
> > assumes a 27Mhz rclk (as this is what I have) but they exist in a 14.318mhz
> > verison too, and it may also fail on sdram cards. G400 isn't tested at all,
> > but should work as far as I can tell.
> 
> As I now have a G400 I'd like to give it a try.
> 
> On a related note, does anyone know what the status on G400 dualhead
> docs is? Are they available? Will they be?
> 

Dualhead I believe is documented in the regular G400 docs. I haven't had a
look at this, since well, I don't have a G400 for one, and what I have heard
hasn't been pretty from a drivers writer perspective. Discussions on other
lists I follow have led me to believe that mutlihead is availible with a
number of restrictions. You have to use 16 or 32 bpp modes, no others are
availible (I don't know if you can have different layouts on different
monitors, but I think you can) your max dclk is split in half, ie, from 310
to 155 on most cards. also, from a programming perspective, you still have
one card, one memmory, one accel engine, one warp engine, but two crtc's (including
extended crtc registers) I believe we sould need a way for kgi to manage
onboard memory even for the framebuffers here, and look into having one card
activated but with multiple sets of private data to manage something like a
kgi_<subsystem>_mode struct...

anyway, it's not high on my list of priorities, and i'm not even concidering
it until kgi 0.9 and when I get a G400 myself :)

I'll polish up the code, put the copyright notices back in where they belong
and such, and I'll put the code up on http://194.218.183.235/~wlfshmn/
within a couple of hours, since I have some biology homework to help my
sister with :)

Johan Karlberg

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