Re: 1.6 PAL Xbox

On Thursday 19 January 2006 08:48, Tim Chick wrote:
> On Monday 16 January 2006 16:51, David Pye wrote:
> > On Monday 16 January 2006 16:43, you wrote:
> > > Yes, I see the picture too big - so overscan is enabled when it
> > > shouldn't be. I realise this is the stated support level on the
> > > Wiki, so I wanted to help either test or develop something better.
> >
> > Your enthusiasm is refreshing ;)  Unfortunately, unless you have more
> > knowledge about how the chip works (or even better a spec sheet which
> > you can legally release!) I doubt you'll get too much further.
>
> OK, how about using 800 x 600 resolution, and only using 640 x 480 of
> it? Can this be set up by capturing registers as described below? If
> so, any idea if any games use 800x600?

I'm not sure how you can actually present a normal framebuffer in such a 
manner, even if it were possible. 

To my knowledge, no, no games would 800x600 composite, as there'd be 0 benefit 
to such a thing.

>
> > > Also I want to use RGB, which also is not supported - though
> > > everything looks kinda cool in green :-)
> >
> > Now, that is possible to do, I should think, with a bit of messing
> > about. Basically, what's needed is a register dump of the xcalibur
> > chip when it's running in one of these modes.  It's been a while
> > since I was last poking about with this, so I'm a little rusty.  I
> > recall making a small utility which read back the settings from the
> > chip after having got into linux via a softmod (the kernel in this
> > being hacked so as not to initialise video, in order for it not to
> > trample the settings).
>
> Can I do this, as a softmod will not work with my xbox? Do you still
> have this utility, and any guide to hacking the kernel not to init the
> chip?

I don't think I have the utility to hand, but I might at some unspecified 
point (when I have a moment!) be able to cook one up to dump the lot in a 
form I can pull into the driver easily.  The second part is easy - build a 
kernel with vesafb support, not xboxfb support.  It will know nothing. Also, 
load it via Xbeboot (you want the default.xbe that xebian uses).

>
> Thanks,
> Tim

There are plenty of softmods that will work with your xbox, just not the 
Mechinstaller one, which frankly is a blessing imho ;)

www.xbox-scene.com, read about UXE.

David

>
>
>
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