Subject: Re: [linux-audio-user] the mystery of the disappearing sound card
From: Speaker to Vegetables (speaker-to-vegetables_AT_pobox.com)
Date: Wed Jan 09 2002 - 17:00:23 EET
> it seems my device doesnt exist!
>
> i have a Turtle Beach Pinnacle rev E, which i have successfully
> installed on my previous versions of Mandrake with a few hacks to
> /etc/modules.conf and /etc/rc.d/rc.sysinit....
> its a difficult card to configure, but not impossible, it is
> supported...
>
> i've just installed mandrake 8.1, and tried my usual hacks but
> they're not working this time...
These may be things you've already tried, but just in case...
The card won't show up in /proc/interrupts until it generates a
interrupt, which it won't do until it has been initialized by the
proper driver. If it's a PCI card, check /proc/pci or the lspci command
to verify that the card is still visible to the pci bus.
Find the driver module for your card, probably in
/lib/modules/<kernel-version>/misc. It will be snd-card-<something>.o
for an ALSA driver, something else for an OSS-type driver. Try manually
loading this module with modprobe. If it can't find and initialize the
card it should produce some kind of error message either on your
terminal or in the system log. I'm sorry, I don't remember where
Mandrake stashes its logfiles, probably somewhere in /var/log.
The ALSA soundcard matrix http://www.alsa-project.org/~goemon/ doesn't
show the Pinnacle card, but hopefully one of the cards that is listed
is compatible, in which case the <something> in the card driver module
name would be cs4236, wavefront, or sonicvibes.
>
> having a look in /proc/interrupts it seems my card has disappeared!!!
> its supposed to be on irq=10, but its not listed....
>
> i do have a *lot* of stuff in my machine... it does this and
> disappears from time to time in That Other OS too...
Does anything else show up as using irq 10? If so, that could be a
problem. Interrupt sharing is supposed to work, in general, but
sometimes it doesn't. Especially for ISA cards.
>
> so i tried the other well-known trick, booting into windoze,
> initialising the card and then booting into linux....
> still no luck...
>
> any ideas on how i can get it to recognise the device?... will i need
> to mknod or something?...
>
>
> thanx in advance,
>
>
> miriam
-- "Can you remember the future? Forget it!"
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