[ltp] Help, no sound fc4, A20m

[Bert Haskins]

Helen Borrie wrote:

> Bert,
> At 12:37 PM 3/09/2005 -0400, you wrote:
>
>> I'm trying to set up a A20M with FC4 for a friend and everything is 
>> fine except
>> no sound anywhere cd, xmms, etc.
>> I did the alsamixer thing, sound detect, cat interrupts shows CS46XX, 
>> cat ioports does
>> not show anything that looks like a sound card.
>> lspci does show Cirrus Logic CS 4614/22/24 [CrystalClear SoundFusion 
>> Audio Accelerator] (rev 01)
>> The sound does work ( fine ) when I booted up using the Dyne Bolic 
>> live cd.
>>
>> I know that I'm missing something but can't find it.
>
>
> Don't know if this helps, as I'm still struggling a bit with sound 
> myself...
>
> PIcked up the following snippets in Google:
>
> "Sound seems to be the most difficult part right now. The ThinkPad 
> uses the cs461x driver available as OSS and Alsa driver. I am using 
> the Alsa driver currently. To get sound at all you will need to 
> disable PCI Power Management in the BIOS. The OSS Driver seems to have 
> a workaround in it with poking at the ACPI area.
>
> I am using this modules.conf extension for alsa:
>
>         alias char-major-116 snd
>         alias snd-card-0 snd-card-cs461x
>         alias char-major-14 soundcore
>         alias sound-slot-0 snd-card-0
>         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-0-12 snd-pcm-oss
>         options snd snd_major=116 snd_cards_limit=1 
> snd_device_mode=0660 snd_device_gid=29 snd_device_uid=0
>         options snd-card-cs461x snd_index=0
> -------------------------------------------------------------
> Another one:
>
> " The soundcard worked out of the box. Try "modprobe cs46xx".
>
> You may need to add the following lines to /etc/modutils/sound:
>
>   alias char-major-14 cs46xx
>   alias sound cs46xx
>
> Then do a "echo sound >> /etc/modules". Sound is now loaded 
> automatically at startup.
> ----------------------------------------------------------------------------------------- 
>
> And another:
> "Steps I did:
>
> 1) Check that the card comes up as CS 4614/22/24 [CrystalClear 
> SoundFusion Audio Accelerator] and uses the ALSA snd-46xx driver (not 
> CS46xx)
>
> 2) Shut down any [gui setup interface] and any applications that may 
> be accessing the sound driver. Make sure to check the taskbar for any 
> running apps like Kmix volume level or Amarok... There's a command to 
> check what apps are running, but I can't remember what it is. 

top.. and it doesn't show any sound aps running

>
>
> 3) Go to [your services interface] and make sure the ALSA is running, 
> if not stop and restart it. YOU MUST HAVE MADE SURE YOU DID STEP 2 OR 
> YOU'LL GET AN ERROR. 

Alsa is running... I can do aplay ( a *.wav file ) and it plays... dead 
silent.
xmms also runs, plays all the way through the wav file also... dead silent.


>
>
> 4) open a terminal window and log in as root
>
> 5) Type "cd /sbin" to go to the sbin directory
> Type "./lsmod" to find what sound module is running. mine had 
> 'snd-CS46xx 81896 7'
> Type "./modprobe -r snd-CS46xx" to remove the sound module and change 
> 'snd-CS46xx' to whatever yours is from the lsmod command if necessary

This is interesting, if I do modeprobe - r snd-cs46xx
I get:
FATAL: Module snd_cs46xx is in use.
FATAL: Error running remove command for snd_cs46xx

This happens if I do it right after boot-up, top reports 2 running
and shows X, rhn-applet-gui, gnome-terminal, top , init
hald nifd show up now and then.

I think that this is ( Module snd_cs46xx is in use ) must be the problem.
Now how do I find out what is using it?

One other strange thing, if I press either the A20Ms volume up or down 
buttons,
I get a speaker beep.

Thanks,
  Bert

>
> Type "./modprobe snd-CS46xx" to reinstall the module
> Type "alsamixer" to start the mixer (don't do this from the KDE start 
> menu but do it here in the terminal
> Check that the 'Master' 'PCM' and 'DAC' levels are turned up pretty 
> far. Arrow right to move to the ones not shown on the screen. These 
> three were the only ones I needed, plus the CD level. All the others 
> could be muted. Actually making sure the two 3DContr levels were muted 
> actually helped the sound quality. Use the 'm' key to mute/unmute.
> Press the 'Esc' key to exit.
>
> 6) Make sure whatever setting for the application your using are ok 
> and it should be good to go.
>
> If you're using XMMS and the volume control slider doesn't change the 
> level, go into XMMS Options->Preferences and configure the ALSA driver 
> to use software volume control.
> --------------------------------------------------
> And an old ref from this list's own archives referring to the 2.4 
> kernel (but maybe it's still applicable):
>
> http://mailman.linux-thinkpad.org/pipermail/linux-thinkpad/2001-July/005400.html 
>
>
> Helen
>
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>
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