sound battle continues: alsa cmi8330 driver

[swanny]

ok. so i figured out that the soundcard in the system was a C-Media 8330 not an sb-16. i also figured out that fedora 2 DOES come with alsa kernel modules installed. it is just a matter of loading them and modifying modprobe.conf.

after boot with the following modprobe.conf file:

<pre>
[root@localhost root]# more /etc/modprobe.conf
alias eth0 tulip
alias usb-controller uhci-hcd

# ALSA portion
alias char-major-116 snd
alias snd-card-0 snd-cmi8330
# module options should go here

# OSS/Free portion
alias char-major-14 soundcore
alias sound-slot-0 snd-card-0

# card #1
alias sound-service-0-0 snd-mixer-oss
alias sound-service-0-1 snd-seq-oss
alias sound-service-0-3 snd-pcm-oss
alias sound-service-0-8 snd-seq-oss
alias sound-service-0-12 snd-pcm-oss
</pre>

i get the following messages from dmesg pertaining to the sound card:

<pre>
isapnp: Scanning for PnP cards...
pnp: CMI8330 quirk - fixing interrupts and dma
isapnp: Card 'CMI8330. Audio Adapter'
isapnp: 1 Plug & Play card detected total
.
.
.
pnp: Device 00:01.00 activated.
pnp: Device 00:01.03 activated. (these are the last 2 kernel messages)
</PRE>

and the following output from lsmod:

<pre>
[root@localhost root]# lsmod
Module                  Size  Used by
snd_cmi8330            10564  0
snd_sb16_dsp            7680  1 snd_cmi8330
snd_ad1848_lib         12416  1 snd_cmi8330
snd_pcm                68872  3 snd_cmi8330,snd_sb16_dsp,snd_ad1848_lib
snd_page_alloc          7940  1 snd_pcm
snd_timer              17156  1 snd_pcm
snd_sb_common          12032  2 snd_cmi8330,snd_sb16_dsp
snd                    38372  6 snd_cmi8330,snd_sb16_dsp,snd_ad1848_lib,snd_pcm,snd_timer,snd_sb_common
soundcore               6112  1 snd
parport_pc             19392  1
lp                      8236  0
parport                29640  2 parport_pc,lp
autofs4                10624  0
sunrpc                101064  1
tulip                  36256  0
floppy                 47440  0
sg                     27552  0
microcode               4768  0
dm_mod                 33184  0
sr_mod                 13348  0
sd_mod                 16384  0
usb_storage            55392  1
scsi_mod               91344  4 sg,sr_mod,sd_mod,usb_storage
usblp                   9476  0
uhci_hcd               23708  0
ipv6                  184288  10
ext3                  102376  3
jbd                    40216  1 ext3
</pre>

so everything looks correct, but i still get no sound. i am running kernel2.6.5-1.358 and i have not run up2date yet.

has anyone else had problems with this driver? is there any workaround?

thanks much.

pete.

[james_in_denver]

Try opening the mixer, there are checkboxes at the bottom of each "input" and "ouput" channel. These are muted by default. You might also turn the volume up in the mixer. The first time you use it they are all set at zero....

[swanny]

ran alsamixer and put master, pcm, and line up but still no luck.

[james_in_denver]

Did you un-mute them in alsamixer????

[james_in_denver]

Are you trying to play MP3's????

I don't know about Fedora Core 3, but in Fedora Core 2, you had to download and install a RPM package to get mp3's to play. Redhat did this to avoid a licensing issue with mp3s....

[swanny]

nothing is muted and i am trying to play a cd. not mp3's.