since you don't have any ISA slots, you don't have an IRQ sharing
problem, and you can't steer your IRQ's using the BIOS.
Since Win98 works well, then it is a driver problem in Linux, or it is
an interfacing problem with the game software. You would need to locate a
linux gaming list (sorry, I don't know of one), and they can probably help
you.
bug
On Sat, 30 Dec 2000, Svante Signell wrote:
> Thank you Bug! for your reply,
>
> The three devices using IRQ 5 are:
> Sound card on main board:
> 00:06.0 Multimedia audio controller: ESS Technology ES1968 Maestro 2
> Subsystem: Compaq Computer Corporation: Unknown device b0b8
> Flags: bus master, medium devsel, latency 64, IRQ 5
> I/O ports at 2000
> Ethernet controller card on PCI bus:
> 00:03.0 Ethernet controller: Lite-On Communications Inc LNE100TX (rev 20)
> Subsystem: Lite-On Communications Inc LNE100TX
> Flags: bus master, medium devsel, latency 66, IRQ 5
> I/O ports at 2800
> Video card on AGP (=PCI?) bus:
> 01:00.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo Banshee (rev 03)
>(prog-if 00 [VGA])
> Subsystem: Guillemot Corporation Maxi Gamer Phoenix
> Flags: VGA palette snoop, 66Mhz, fast devsel, IRQ 5
> Memory at 40000000 (32-bit, non-prefetchable)
> Memory at 42000000 (32-bit, prefetchable)
> I/O ports at 1000
> Capabilities: [54] AGP version 1.0
>
> I'm using X4.0.2 with DRI enabled. According to the log files and
> glxinfo the card is HW accelerated. However, even though Q3A and gears
> run OK, HG2, Heretic2, UT does _not_. Do the Banshee (tdfx) driver
> require an IRQ? If not everything should be OK, or can three devices
> share the same IRQ? W98 on the same computer have no problems with
> three devices at IRQ5.
>
> Further comments below.
>
> Thanks,
> Svante
>
> Bug Hunter writes:
> >
> > If you have PCI cards, IRQ sharing will work.
> >
> > Otherwise, you may have to force the card not to be PNP and then tell it
> > what IRQ to be on. You usually have to run the DOS setup disk to get this
> > to happen.
> I've not found any option to control the PNP behavior in the BIOS. Do
> the IRQ steering apply to ISA cards? This computer does not have
> any ISA slots :(
