I should say more.I had the same problems with a S3 Savage4 based card.Simply, it doesn't supported
for now.It works only under linux b'cuz it is supported by linux XF86_SVGA* server - in the XF86_SVGA from NetBSD (3.3.6) there is no such a chip. 

Piter G Oseneff (oseneff@sitek.net) wrote:
> Unfortunately, it seems that the current implementation of XFee86 3.3.6 in NetBSD does not allow
> you to run X on an Savage4 based video card due to ...I wonder why :)
> 
> itojun@iijlab.net (itojun@iijlab.net) wrote:
> > 
> > >I'm setting up a new machine for someone, and the machine has a
> > >Diamond Multimedia AGP graphics card which the NetBSD kernel reports
> > >has an S3 Savage 4 graphics chip.
> > >
> > >According to XF86, this would be a Diamond Multimedia Stealth 2000 3D
> > >(or something like that :-)
> > >
> > >Unfortunately, I can't get XF86 to work on the thing, even in a basic
> > >mode like 1024x768x8bpp.  The X server starts, puts the monitor into
> > >a totally whacked mode, and then the machine is effectively wedged,
> > >as far as I can tell.
> > >
> > >Can anyone help me out w/ an XF86 config file for this card?
> > 
> > 	Savage chipset seems to need special code for it.  current supports are:
> > 	- XF86 3.3.6 has linux-only support in it,
> > 	- XF86 4.0 has similar one, and
> > 	- XAccel 5 (commercial one) has beta plugin driver
> > 	I have tested the last option with Savage IX8 (Thinkpad T20), on
> > 	top of FreeBSD emulation, it works fine modulo screen crash on
> > 	suspend/resume.
> > 
> > itojun
> > 
> 
> -- 
> Petr G Osenev  	
> System Administrator , SITEK ITSP
> 

-- 
Petr G Osenev  	
System Administrator , SITEK ITSP