Messages in this thread | | | Date | Tue, 1 Sep 1998 09:18:31 +1000 | From | Richard Gooch <> | Subject | Re: APIC IO changes in 2.1.118. |
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MOLNAR Ingo writes: > > On Mon, 31 Aug 1998, Matthew G. Marsh wrote: > > > Perhaps this snippet from the Intel MB site may help - > > > > IRQ9 cannot be re-assigned > > > > IRQ9 is not available to assign to > > ISA add-in cards because it is > > dedicated to the power > > management function of the PIIX4 > > controller on the motherboard. > > This is true for other motherboards > > which use the 82371AB PIIX4 > > component. > > this looks promising. We can safely detect the PCI ID of the 82371AB PIIX4 > runtime, instead of querying the ACPI BIOS about the status of IRQ9 (which > we cant do currently) ... thus the horrible hack of disabling IRQ9 on all > boards can go away.
Hm. I didn't realise we did this. Could this possibly be the cause of a problem a friend of mine is having with his sound interface? He has to boot Windoze first (oops, better not slag off M$, they might demand records of all my email;-) which properly sets up the sound interface, which is on IRQ 9. He's got a Gateway Solo laptop. Perhaps Windoze set up IRQ 9 on the motherboard which Linux can later use for the sound interface?
Regards,
Richard....
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