Date: Tue, 18 Jan 2000 17:39:57 +0800 From: Peter Wemm <peter@netplex.com.au> To: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> Cc: freebsd-bugs@FreeBSD.org Subject: Re: i386/16164: "vga" attach fails if video card not whacked into shape Message-ID: <20000118093957.18E401CD9@overcee.netplex.com.au> In-Reply-To: Message from Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> of "Tue, 18 Jan 2000 01:10:03 PST." <200001180910.BAA91603@freefall.freebsd.org>
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Kazutaka YOKOTA wrote:
> The following reply was made to PR i386/16164; it has been noted by GNATS.
>
> From: Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
> To: green@freebsd.org
> Cc: FreeBSD-gnats-submit@freebsd.org,
> yokota@zodiac.mech.utsunomiya-u.ac.jp
> Subject: Re: i386/16164: "vga" attach fails if video card not whacked into sh
ape
> Date: Tue, 18 Jan 2000 18:08:55 +0900
>
> >>Number: 16164
> >>Category: i386
> >>Synopsis: "vga"/"sc" don't work when a video card is not whacked int
o s
> >hape
> [...]
> >>Release: FreeBSD 4.0-CURRENT i386
> >>Organization:
> >The FreeBSD Project
> >>Environment:
> >
> > It happens with -current as of any time, my AMI BIOS from a few
> >months ago (latest), and latest working BIOS (1.20) for my SIIG66 HPT366
> >controller.
> >
> >>Description:
> >
> > The HPT366's BIOS makes a highly lame video mode change and things
> >are very screwy; the BIOS doesn't reset the video card after that, though
> >I don't know if it _should_, and FreeBSD has a cow with it. The "vga"
> >and "sc" devices don't work, VESA fails, and the system isn't usable from t
he
> >console.
>
> I would like to see the output from dmesg when you give "boot -v" to
> boot the system.
I've got the dmesg -v already. It says:
...
Preloaded elf kernel "kernel" at 0xc030e000.
Preloaded elf module "vesa.ko" at 0xc030e0a8.
Preloaded elf module "usb.ko" at 0xc030e144.
Preloaded elf module "joy.ko" at 0xc030e1e0.
module_register_init: MOD_LOAD (vesa, c02eebb0, 0) error 19
..
vga-pci0: <NVidia Riva TNT graphics accelerator> mem 0xcc000000-0xccffffff,0xef000000-0xefffffff irq 11 at device 20.0 on pci0
..
sc0: no video adapter is found.
..
My guess is the vesa module is getting this far in vesa_configure():
/*
* The VGA adapter is not found. This is because either
* 1) the VGA driver has not been initialized, or 2) the VGA card
* is not present. If 1) is the case, we shall defer
* initialization for now and try again later.
*/
if (adp == NULL) {
vga_sub_configure = vesa_configure;
return ENODEV;
}
> What does the HPT366 BIOS do to the screen? Does it draw some sort of
> graphics? At which point does it do that? The motherboard AMI BIOS
> runs POST and prints something about CPU, serial ports, parallel ports
> and PnP device info before looking for a boot device.
It clears the screen and draws a little "Highpoint" in cursive writing on
the bottom right of the screen. It's kinda like the energy star logo on
the boot screen.
> >>Fix:
> >
> >This knocks the video card into shape, and FreeBSD works after it runs.
> >This was submitted to me by W. G. Hicks, but a better place should really
> >be found for it. It definitely seems to be necessary.
>
> This patch sets the video mode #3: 80x25 color text. It is fine
> for CGA/EGA/VGA cards, but not good for MDA and Hercules mono cards.
> (Well, maybe we shouldn't bother too much about monochrome video cards
> nowadays, but they are still in use, I believe.)
Since boot1/2 are a bit tight on space, can we do something along these lines
in loader? In vidconsole.c, perhaps test to see if the equipment bytes list
cga/ega/vga and set the mode then? If it lists mono, set it to mono 80x25..
Cheers,
-Peter
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