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Re: s3 product (Re: Xserver works on bebox with s3)


On Nov 24, 2008, at 12:47 PM, Tim Rightnour wrote:

On 24-Nov-2008 KIYOHARA Takashi wrote:
It is likely to be able to refer to this patch with ibmnws and prep.
However, s3_drv.o did not support 'Vision 864' though I tried the support
with s3 on my prep.  I am looking at the source-code of old X now.

My prep machine attached 'S3 Vision 864' on main-board.
If the product of other S3 is attached(ex. Trio64), I might prepare Xserver
for that.  Does prep have VGA other than Vision 864?

Good work on getting it running.  Thats awesome.

My 7248 has an 864:
vga0 at pci0 dev 14 function 0: S3 86C864-1 ("Vision864") (rev. 0x00)

It looks like a 7249-860 (the little laptop) has a different card, but I don't
own one of those:
vga0 at pci0 dev 14 function 0: S3 Aurora64V+ (rev. 0x00)

Having said that, I believe that the S3 driver in xorg and all xfrees after 3.3.6 (ie, the whole 4.x series) is broken. I have a few i386 machines around here with S3 cards, and while X works on them, it has all kinds of bad graphics glitches, and other wierd issues. I used to use S3 cards with 3.3.6 with no issues, so I think it was broken in the big driver-rewrite that occurred in the
4.0 X.

Additionally, other cards I typically see in prep machines:

Weitek P9100 (VGA display) at pci0 dev 14 function 0 not configured

There is no XF86 driver for it. I wrote a driver for the SBus variant used in the SPARCbook 3 series, should be simple enough to adapt to PCI.

Cirrus Logic CL-GD5434-8 (VGA display, revision 0x8e) at pci0 dev 18 function 0
not configured

I've got one of these here I think. Might be a different chip though. Got 2MB VRAM and no ROM.
XF86 supports it IIRC.

Also, I know of some machines that shipped with Matrox Millenium cards, so the
matrox driver would be handy to have too.

Some IBM low-end graphics boards are castrated Millenniums with EDO RAM ( instead of the fancy dual-ported VRAM they used on the Millennium I and II ) and a DAC that supports only 8 bit colour. Consequently, the AIX driver supports only 8 bit colour even on a real Millennium.

have fun

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