[ltp] Sound problem

[Konstantin]

hi,

start alsamixer on the shell(console,xterm, aterm what ever), the go to the master volume and press m to unmute the channel, with the arrow key up

Looks like this:
^
|

you can rise the volume.

You need volume on Master and PCM, after that you can here something, but watch that on the top of the beam are no 2 MM, this means they are muted.

Muted looks like this

-MM-
|  |
|##|
|##|
|##|
----

but should be look like this:

____
|  |
|##|
|##|
|##|
----

hope it'll help

Greetz

Konstantin




On Tue, 10 Feb 2004 01:20:57 +0100
Julien Tane <jtane@web.de> wrote:

> Hello Alexander,
> 
> I really appreciate your help! I am learning a lot. And it might solve 
> the problem ( even though I start to be afraid that my sound card is in 
> the dumps...).
> 
> Anyway I tried.
> 
>  dd if=/dev/urandom of=/dev/dsp
> 144+3 records in
> 144+0 records out
> 
> does nothing... I don't hear anything... :-(.
> 
> Sorry I had again not followed.. I had done
> cat /dev/dsp
> 
> Now I did :
> echo "test" >/dev/dsp
> 
> But nothing!!! :-( No sound :-(
> 
> 
> Julien
> 
> P.S: Sorry if I had not been following verywell the two previous mails...
> 
> Alexander Gran wrote:
> 
> >-----BEGIN PGP SIGNED MESSAGE-----
> >Hash: SHA1
> >
> >Am Montag, 9. Februar 2004 19:11 schrieb Julien Tane:
> >  
> >
> >>>>>echo "test" > /dev/dsp
> >>>>>gives an error, too?
> >>>>>          
> >>>>>
> >>It seems to work! At least it seems to write somtthing to stdout. But
> >>there seem only to be blanks.
> >>    
> >>
> >
> >Erm, it should either say "No such device", or it should do nothing, or it 
> >should make a little noise.
> >
> >  
> >
> >>Crystal 4280/46xx + AC97 Audio, version 1.28.32, 13:54:54 Jan 30 2004
> >>cs46xx: Card found at 0xe8122000 and 0xe8000000, IRQ 11
> >>cs46xx: Thinkpad 600X/A20/T20 (1014:0153) at 0xe8122000/0xe8000000, IRQ 11
> >>ac97_codec: AC97 Audio codec, id: CRY20 (Cirrus Logic CS4297A rev B)
> >>    
> >>
> >
> >This looks ok.
> >
> >  
> >
> >>If you can tell me where to look. I would appreciate. And then next time
> >>I will know and might be helpfult to other people.
> >>    
> >>
> >
> >Well, basically the driver needs to find the card, and the devices should be 
> >accessible then.
> >I suppose you're card is muted or to silent. Please ensure that Master volume 
> >and PCM are not muted and volume is turend up. Then you could test the sound 
> >pretty easy via dd if=/dev/urandom of=/dev/dsp
> >this sould make an ugly noise, but is pretty software independent (I.e. you 
> >don't need a working player app)
> >
> >regards
> >Alex
> >
> >- -- 
> >Some operating systems are called `user friendly',
> >	Linux however is `expert friendly'.
> >Encrypted Mails welcome.
> >PGP-Key at http://zodiac.dnsalias.org/misc/pgpkey.asc | Key-ID: 0x6D7DD291
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> >
> 
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