From mboxrd@z Thu Jan  1 00:00:00 1970
To: 9fans@cse.psu.edu
From: gene <ggarbutt@surewest.net>
Message-ID: <1fcb340f.0308062229.1041e878@posting.google.com>
Content-Type: text/plain; charset=ISO-8859-1
References: <87d6g5gd8e.fsf@rgristroph-austin.ath.cx>
Subject: Re: [9fans] MBR and nvidia hangups
Date: Thu,  7 Aug 2003 08:39:02 +0000
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rgr@sdf.lonestar.org (Rob Ristroph) wrote in message news:<87d6g5gd8e.fsf=
@rgristroph-austin.ath.cx>...

> However, no rio comes up:
>=20
> init: starting /bin/rc
> aux/vga: nvidia: can't attach mmio segment
> dossrv: serving #s/dos
> rio: can't open display: initdisplay: /dev/draw/new: no frame buffer
> init: rc exit status: rio 13: display open
>=20
> init: starting /bin/rc
> term%

I also ran into this problem installing on a system with a Creative
Labs Riva TNT board and was able to get rio working by making a change
in 9/pc/vganvidia.c nvidiapci:

/* Nvidia is good about backwards compatibility -- any did > 0x20 is
fine */
static Pcidev*
nvidiapci(void)
{
	Pcidev *p;

	p =3D nil;
	while((p =3D pcimatch(p, 0x10DE, 0)) !=3D nil){
		if(p->did > 0x20 && p->ccrb =3D=3D 3)	/* video card */
			return p;
	}
	return nil;
}

I believe the test should be:
               =20
                 if(p->did >=3D 0x20 && p->ccrb =3D=3D 3) /* video card *=
/

An earlier lib/vgadb shows the following for Nvidia

ctlr
        vid=3D0x10DE did=3D0x0020           # Riva TNT
        vid=3D0x10DE did=3D0x0028           # Riva TNT2
        vid=3D0x10DE did=3D0x0029           # Riva TNT2 Ultra
        vid=3D0x10DE did=3D0x002C           # Riva TNT2 Vanta
        vid=3D0x10DE did=3D0x002D           # Riva TNT2 M64
        vid=3D0x10DE did=3D0x00A0           # Riva TNT2 Integrated
        vid=3D0x10DE did=3D0x0100           # GeForce 256
        vid=3D0x10DE did=3D0x0101           # GeForce DDR
        vid=3D0x10DE did=3D0x0103           # Quadro
        vid=3D0x10DE did=3D0x0110           # GeForce2 MMX
        vid=3D0x10DE did=3D0x0111           # GeForce2 MMX DDR
        vid=3D0x10DE did=3D0x0112           # GeForce2 Go
        vid=3D0x10DE did=3D0x0113           # Quadro 2 MXR
        vid=3D0x10DE did=3D0x0150           # GeForce2 GTS
        vid=3D0x10DE did=3D0x0151           # GeForce2 GTS (rev 1)
        vid=3D0x10DE did=3D0x0152           # GeForce2 Ultra
        vid=3D0x10DE did=3D0x0153           # Quadro 2 Pro =20
        vid=3D0x10DE did=3D0x0200           # GeForce3
        link=3Dvga
        ctlr=3Dnvidia linear=3D1
        hwgc=3Dnvidiahwgc


-gwg