Re: sound driver

[Justin Guerin <jguerin@cso.atmel.com>]

On Saturday 20 November 2004 09:38, Jason Rennie wrote:
> On Fri, Nov 19, 2004 at 04:41:26PM -0700, Justin Guerin wrote:
[snip]
>
> So, I've been succesful in getting the sound driver (vi82cxxx_audio)
> to not load upon boot.  However, it now looks like the problem is
> deeper than just passing the right IRQ to the module... :(  /sbin/lsmod
> shows no sound driver and when I try to play an ogg file, I get
> "Error: Cannot open device oss."  But, "lspci -v" shows that the sound
> card has been assigned IRQ 18!
>
> 0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc.
> VT8233/A/8235/8237 AC97 Audio Controller (rev 50) Subsystem: VIA
> Technologies, Inc.: Unknown device 4161
>         Flags: medium devsel, IRQ 18
>         I/O ports at e000 [size=256]
>         Capabilities: <available only to root>
>
> Just to check, I tried "sudo /sbin/modprobe via82cxxx_audio irq=22".
> It gives the error "Warning: ignoring irq=22, no such parameter in
> this module".
>
> Anyway, the sound card is getting assigned an IRQ before the sound
> module is loaded.  It seems that something is going wrong at the PnP
> layer!  Feels like every time I figure something out, there's another
> problem lurking underneath...
>
> Jason

Hmm.  Perhaps you can set the IRQ in your BIOS setup?  If not, there may be 
another module that will accept the IRQ parameter.  It could be the driver 
for the PCI bus, but I have no idea what module that is.

You might boot knoppix in expert mode to see which module load manages to 
change the IRQ parameter.  It might also be present in the boot logs.

If you can't seem to get the IRQ changed, perhaps physically rearranging the 
cards on your PCI bus will help.  The defaults might work if you switch 
slots.

Sorry I can't be of more help.

Justin