* [9fans] S3 775/325
@ 2000-06-16 9:11 Oscar Gala
2000-06-16 13:57 ` [9fans] " Wladimir Mutel
0 siblings, 1 reply; 3+ messages in thread
From: Oscar Gala @ 2000-06-16 9:11 UTC (permalink / raw)
To: 9fans
Hello,
I have a S3 Trio64 videocard with the 86C775 chipset and a S3 Virge
with the 86C325 Chipset,
but I can't get them to work with the Plan9 installation.
At firt I would get ascreen dump of the Bios Rom, and I made an entry
in the vgadb, but then the installation got hung up in vga mode and I
just saw the cursor blinking, but couldn't do anything.
Does this mean the cards are not compatible with Plan9,
or that I have to make a different entry in vgadb?
And if that is the case, could someone help me with that?
Thanx,
Oscar Gala
^ permalink raw reply [flat|nested] 3+ messages in thread
* [9fans] Re: S3 775/325
2000-06-16 9:11 [9fans] S3 775/325 Oscar Gala
@ 2000-06-16 13:57 ` Wladimir Mutel
2000-06-18 6:30 ` Eric Dorman
0 siblings, 1 reply; 3+ messages in thread
From: Wladimir Mutel @ 2000-06-16 13:57 UTC (permalink / raw)
To: 9fans
Oscar Gala <proto@phatspace.org> wrote:
> I have a S3 Trio64 videocard with the 86C775 chipset and a S3 Virge
> with the 86C325 Chipset,
> but I can't get them to work with the Plan9 installation.
86c775/86c785 (Trio64V2) works. I just added such line (marked with
+) in /lib/vgadb (and before, in vgadb on boot diskette):
0xC0044="Phoenix S3 TRIO64 Enhanced VGA BIOS. Version 1.2-07"
+ 0xC004B="86C775/86C785"
link=vga
Try to find the same place and insert the same line.
> At firt I would get ascreen dump of the Bios Rom, and I made an entry
> in the vgadb, but then the installation got hung up in vga mode and I
Yes, I copied start address and identifying string exactly from
video bios dump I got first time.
> just saw the cursor blinking, but couldn't do anything.
> Does this mean the cards are not compatible with Plan9,
> or that I have to make a different entry in vgadb?
> And if that is the case, could someone help me with that?
Try my suggestion, hope it helps.
--
mwg@alkar.net
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [9fans] Re: S3 775/325
2000-06-16 13:57 ` [9fans] " Wladimir Mutel
@ 2000-06-18 6:30 ` Eric Dorman
0 siblings, 0 replies; 3+ messages in thread
From: Eric Dorman @ 2000-06-18 6:30 UTC (permalink / raw)
To: 9fans
----- Original Message -----
From: "Wladimir Mutel" <mwg@alkar.net>
To: <9fans@cse.psu.edu>
Sent: Friday, June 16, 2000 6:57 AM
Subject: [9fans] Re: S3 775/325
> Oscar Gala <proto@phatspace.org> wrote:
> > I have a S3 Trio64 videocard with the 86C775 chipset and a S3 Virge
> > with the 86C325 Chipset,
> > but I can't get them to work with the Plan9 installation.
> 86c775/86c785 (Trio64V2) works. I just added such line (marked with
> +) in /lib/vgadb (and before, in vgadb on boot diskette):
[xx]hi,
Gotta be careful here, because an 86C775 isin't quite a Trio64
but has some more regs that might have to be filled in. An example
is the C775 on the HP Vectra VL5/166. On that box regs
0x90 and 0x91 didn't get filled in correctly, resulting in the
left half of the display repeated twice. I did the following:
init:
vga->crt[0x90] = 0x0;
vga->crt[0x91] = 0x7F;
load:
vgaxo( Crtx, 0x90, vga->crt[0x90] );
vgaxo( Crtx, 0x91, vga->crt[0x91] );
looking over the docs today leads me to think that 0x90
is sufficient.
The BIOS string is also different (ah, love HP sometimes).
vgadb:
0xC004E="86C775"
I have a true-blue Trio64 card to compare against to make
sure I get the correct identification so real regs get filled in,
then I'll generate a patch.
--eld
^ permalink raw reply [flat|nested] 3+ messages in thread
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2000-06-16 13:57 ` [9fans] " Wladimir Mutel
2000-06-18 6:30 ` Eric Dorman
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