[ILUG] Linux and Shared IRQs

[Liam Bedford]

Keith Davey wrote:

> Hi,
>
> I work on a Sony Vaio pcg-z1rsp which I am trying to get set up 
> correctly under Linux.
>
> First off its a centrino. However I have compiled the drivers from 
> sourceforge but I am still get unresolved
> symbols. But I think the main problem is the shared irq setup.
>
> My firewire, usb, sound, video, modem and pcmcia controller all share 
> irq 9.
>
> This sounds mad I know but thats the setup as reported by both Linux 
> and Windows.
>
I think that's fairly standard these days.

> Anyway, Linux is not happy. It won't start usb or firewire at all and 
> the sound  plays very crackly.
> When I try and modprobe any of the drivers all I get are complaints 
> about irq conflicts.
>
have you tried with and without ACPI? a lot of newer laptops kinda need 
ACPI before they work
at all well these days.. though sometimes they're still more stable 
without ACPI :(

> I have tried a 2.4.20-8, 2.4.25 and a 2.6.4 kernel. None of them can 
> handle it.
>
> Is there something I should set  in menuconfig to get this working or 
> is there a patch somewhere?
>
The usual suspect.. linux on laptops and tuxmobil.

My Acer and Dell centrino machines pretty much just worked under linux. 
A few BIOS updates to the
Acer to make the network card not run at 2K/s when ACPI was enabled, but 
then it was fine.

L.