Re: can't get volume
On Fri, 13 Apr 2001, Michael P. Soulier wrote:
> Hey people. My wife just got a new computer, and I'm just
> getting sound set up under Linux on it. She has an integrated
> C-Media CM8738 on a PCI bus.
>
> So, running lspci I get this:
>
> 00:0c.0 Multimedia audio controller: C-Media Electronics Inc CM8738
> (rev 10) 00:0c.1 Communication controller: C-Media Electronics Inc:
> Unknown device 0211 (rev 10)
>
> So I grepped through the kernel documentation and found the
> cmpci module.
> Modprobing that and checking dmesg I get this:
>
> cmpci: version v2.41-nomodem time 19:13:21 Nov 18 2000
> cmpci: found CM8738 adapter at io 0xd800 irq 5
>
> Looks good. I add her to the audio group, fire up xmms, install
> kmix and crank everything up. Nothing. kmix shows her card, no
> problems. xmms is playing, the power's on, the volume is turned
> up, but we're hearing nothing.
>
> Any ideas? She's using KDE 2.1, but artsd is not running. It
> shouldn't
> have to be for this, no?
What you didn't mention is the output from lsmod. In the default
kernels, sound isn't built in. I don't know which module you'll have
to use, but the general formula is to play around with
# modprobe <module_name> <module_options>
until you get something that works, and then to put
<module_name> <module_options>
into /etc/modules.
If you've already done that and things still aren't working, then
start thinking that the problem is with your software configuration.
xmms defaults to use the "Disk Writer" plugin which won't make any
noise.
A fairly fail-safe program to use if xmms still isn't working is
"play" in the sox package. The command line is simple:
$ play <wav_file>
If that doesn't work, you should almost certainly go back to playing
around with your hardware configuration (modprobe et al). Keep on
trying until you get something that works.
Good luck,
Chris
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