Cannot change volume for USB Audio card

lpwevers · 10-08-2008, 07:17 AM

Hi,

I recently acquired a USB sound card. Though it works on Linux I cannot change the volume of the card; which means I can set it to "Extremely Loud" or "No soud".

When I use the alsamixer on the built in card of my laptop, it all works fine. The USB card powers on around volume 8 and that's it. Alsamixer only lists PCM as volume.

Reason I want to use the USB card is that it has a much better sound quality.

The output of lsusb:

Quote:

Bus 003 Device 003: ID 1130:f211 Tenx Technology, Inc.
Bus 003 Device 001: ID 0000:0000
Bus 004 Device 002: ID 145f:011a
Bus 004 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

The output of uname -r

Quote:

2.6.22.18-0.2-default

I'm running OpenSuSE 10.3. Does anyone know how to fix this issue? Many thanks in advance.

Louis

tredegar · 10-08-2008, 11:10 AM

You might like to take a look at this thread:
http://www.linuxquestions.org/questi...5/#post3186541

lpwevers · 10-08-2008, 12:59 PM

Quote:

Originally Posted by tredegar

You might like to take a look at this thread:
http://www.linuxquestions.org/questi...5/#post3186541

Hi,

Thanks for the reply. This will allow me to choose the right card on startup. (Use the USB card if it's plugged in; otherwise use the built in card). Unfortunately I still cannot control the volume of the USB card.

The slider in the alsamixer still works in "binary mode".

tredegar · 10-09-2008, 09:37 AM

Then there may be some problem with the device or the kernel module used to control it.
Maybe try a search for "1130:f211 Tenx Technology" ?

lpwevers · 10-10-2008, 07:40 AM

Well, I believe that I managed to get it working a little bit by adding the parameters

Code:

async_unlink=1 nrpacks=10

to the module. I believe that I can now get the difference between loud and very loud in about 2 mixer steps.

I guess my card just does not support it properly.

Thanks for the help.