2001-04-10 21:25:02

by Manuel A. McLure

[permalink] [raw]
Subject: RE: Still IRQ routing problems with VIA


> > I do have an IRQ for my VGA since the instructions for my
> card (a Voodoo 5
> > 5500) specifically say an IRQ is needed.
>
> I wonder though... In my mind this is a driver not hardware issue. If
> the XFree86 and/or Linux console driver do not use the IRQ,
> you need not
> have BIOS assign one. If you are feeling dangerous, try
> turning the VGA
> IRQ assignment off in BIOS and see if things melt/explode/kick ass.

I'd do that if this wasn't also my Windows 98 gaming machine - I'm supposing
that the Windows drivers do use the IRQ even if XFree86/Linux doesn't. I
dunno if Windows is smart enough to assign an IRQ even if the BIOS doesn't.
Anyway, things are working now (specially since the last tulip patches) and
I like it that way :-)

--
Manuel A. McLure - Unify Corp. Technical Support <[email protected]>
Space Ghost: "Hey, what happened to the-?" Moltar: "It's out." SG: "What
about-?" M: "It's fixed." SG: "Eh, good. Good."


2001-04-10 21:36:35

by Jeff Garzik

[permalink] [raw]
Subject: Re: Still IRQ routing problems with VIA

"Manuel A. McLure" wrote:
> I'd do that if this wasn't also my Windows 98 gaming machine - I'm supposing
> that the Windows drivers do use the IRQ even if XFree86/Linux doesn't. I
> dunno if Windows is smart enough to assign an IRQ even if the BIOS doesn't.
> Anyway, things are working now (specially since the last tulip patches) and
> I like it that way :-)

Well, as the old saying goes, "if it ain't broke, don't fix it."

Theoretically, with PNP OS enabled, the driver will assign VGA an IRQ if
it needs one, under both Windows and Linux.

Jeff


--
Jeff Garzik | Sam: "Mind if I drive?"
Building 1024 | Max: "Not if you don't mind me clawing at the dash
MandrakeSoft | and shrieking like a cheerleader."