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Old 11-01-2012, 10:42 AM   #1
SF1979
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Registered: Oct 2012
Posts: 4

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Yoga USB Driver


Hello,

New to this forum. I originally posted my question as a "Bump!" to this thread:

http://www.linuxquestions.org/questi...ubuntu-759084/

I subsequently noticed there was a closed envelope beside that thread, which I thought might mean it was closed, and hence my question may have been overlooked. So I decided to repost the question here, although it is phrased in terms of the thread indicated above.

Also I am posting here rather than in the Hardware forum, since the original thread to which I responded was posted here.

Hope all of that is okay. Please let me know if there is anything unclear and I will remedy asap.

So here is my original post:
Hello, I would like to ask whether anyone can think of a similar approach for a more recent Yoga 5.1 USB Audio Connector.

As with the last person, it also seems to be a C-Media card. I am running standard 64 12.04 Ubuntu.

Code:
cat /proc/asound/cards
 0 [PCH            ]: HDA-Intel - HDA Intel PCH
                      HDA Intel PCH at 0xf7600000 irq 53
 1 [Device         ]: USB-Audio - USB Sound Device
                      C-Media INC. USB Sound Device at usb-0000:00:1a.0-1.2, full speed
The last person said that it eventually started to work for him. I am not sure how that happened, but it has not worked for me, and there seems to be a few differences to alsa but I really do not know enough to act upon that.

Added on edit: I can go into alsamixer and switch between devices from and to my USB device. Here the USB device only has two control bars: "PCM" and "Loudness". I can change "PCM", but "Loudness" is locked on 0. I don't know if that's relevant (I am afraid I don't really understand alsa) but a zero hanging over "Loudness" seemed worth mentioning.

Also, referring to a comment to the previous poster, I still get volume through speakers despite having switched to 1 on conf file and despite alsamixer opening onto the USB mixer on default - so the music still plays through the speakers and changing PCM has no effect upon that either way.

Further edit: Referring to edit above, I can stop the speakers by altering: defaults.pcm.device to 1. But this does not make the USB play.

If anyone has any help I would be very grateful.

Thank you very much in advance.
 
  


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