[PlanetCCRMA] IRQ sharing, nVidia kernel stuff

Mark Knecht markknecht@attbi.com
Mon Apr 7 18:38:01 2003

   This is, in a roundabout way, the same thing I was reporting
yesterday. From my investigations, since you've set acpi=off, you have
disabled the IOAPIC chips on your MB, if there are any. If you remove
that option, what happens? Do you get the newer style IRQ numbers?
(Going up into the 20s?)

   If you don't want to turn acpi on, which I understand, then the
normal way to solve this problem is to get your MB info and make sure
the slots used for these cards are not shared. (Seems like they should
not have been if they were separate IRQs before.)

   Also, I got some clues from dmesg and reading through my
/var/log/messages file closely. You might delve a bit there.


On Mon, 2003-04-07 at 15:37, Joe Hartley wrote:
> I'm on a RH 7.3 system with the Planet CCRMA 2.4.20-4.ll.acpi kernel,
> and all seems relatively well, but I have a couple of questions (what
> else is new?).
> I noticed that under the new kernel, my Delta 1010 card and my graphics
> card are sharing an IRQ, which was not the case before:
> 01:00.0 VGA compatible controller: nVidia Corporation NV11 [GeForce2 MX] (rev a1
> ) (prog-if 00 [VGA])
>         Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 9
>         Memory at e8000000 (32-bit, non-prefetchable) [size=16M]
>         Memory at f0000000 (32-bit, prefetchable) [size=128M]
>         Expansion ROM at <unassigned> [disabled] [size=64K]
>         Capabilities: [60] Power Management version 2
>         Capabilities: [44] AGP version 2.0
> 02:07.0 Multimedia audio controller: IC Ensemble Inc ICE1712 [Envy24] (rev 02)
>         Subsystem: IC Ensemble Inc: Unknown device d630
>         Flags: bus master, medium devsel, latency 64, IRQ 9
>         I/O ports at 2c00 [size=32]
>         I/O ports at 2800 [size=16]
>         I/O ports at 2400 [size=16]
>         I/O ports at 2000 [size=64]
>         Capabilities: [80] Power Management version 1
> I used to have the nVidia card at 10, now there's nothing at 10 and 2
> devices at 9!
> I am booting with ACPI off in the kernel via the acpi=off option to
> the kernel line in grub.conf.
> Does anyone know if there's a tool around to set IRQs in devices?
> There wasn't the last time I looked; I remember having to boot into Windoze
> and set things there then reboot into Linux.  I can do that again if I have
> to.
> Also, would I benefit from plooking around with the nVidia kernel stuff
> that's available through the Planet?  If so, is there a pointer to the
> installation process?
> Thanks for any breadcrumbs in the forest :)
> -- 
> ======================================================================
>        Joe Hartley - UNIX/network Consultant - jh@brainiac.com
> Without deviation from the norm, "progress" is not possible. - FZappa
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