USB Audio Card lv10 Volume Control: Failed to find mixer ((Solved))

[md201]

I'm trying to get the volume control to work in retropie 4.4. when I press the start button and go to sound settings. if I increase the volume to 50. Exit out and go back in there. It still says 0. If I ssh and run alsamixer -c 1. I can adjust the volume for the USB audio card just fine.

If I try to bring up the audio card using alsamixer I get this error:

Think I have been reading every message board about solving this issue and have had no luck. Any help on this would be greatly appreciated!

[mitu]

@md201 said in USB Audio Card lv10 Volume Control: Failed to find mixer:

Exit out and go back in there. It still says 0

It's probably because the settings in ES look at the 1st (built-in) audio card. The new 2.8.2 version of Emulationstation can also look at the external card - just fiddle with the Sound settings for Device / Card until you find the right configuration.
Alternatively - see the docs for how to make the USB card the default audio device.

[Efriim]

dtparam=audio=on
My setup always seems to need this added to the /boot/config.txt
Its not a dtoverlay so it shouldn't do anything except enable sound.

I don't know about alternatives to this or how other people get sound to work.

[mitu]

@Efriim said in USB Audio Card lv10 Volume Control: Failed to find mixer:

dtparam=audio=on
My setup always seems to need this added to the /boot/config.txt

That parameter is already added on the RetroPie provided PI image, but it's meant to enable internal audio 'card'.

[Efriim]

maybe these will help
https://www.raspberrypi.org/forums/viewtopic.php?t=175233
https://www.alsa-project.org/main/index.php/Asoundrc

defaults.pcm.card 1
defaults.pcm.device 0
defaults.ctl.card 1

write to /home/$USER/.asoundrc

@mitu I missed that it was a USB audio card somehow, I wasn't paying attention.
I disabled the dtparam=audio=on and had to go through the retropie>>audio>>auto. To get it working again, I also needed to set the emulationstation sound settings to default and pcm.

[md201]

that is a no go on everything. I appreciate the suggestions. This is an issue I've been struggling with for months. Just cant seem to get it. Any other suggestions?

[Efriim]

@md201
Try adding these changes.

sudo nano /boot/config.txt

#dtparam=audio=on
dtparam=audio=off

sudo nano $HOME/.asoundrc

defaults.pcm.card 1
defaults.pcm.device 0
defaults.ctl.card 1

sudo nano /usr/share/alsa/alsa.conf
# then replace:
#defaults.ctl.card 0
#defaults.pcm.card 0
# with:
defaults.ctl.card 1
defaults.pcm.card 1

Here are the detailed steps and alternative index at the end. https://raspberrypi.stackexchange.com/questions/80072/how-can-i-use-an-external-usb-sound-card-and-set-it-as-default.

[md201]

I don't know if this set any config file but when ssh I entered the command alsamixer -c 0. Then in the start menu for emulation station I set the audio card to default and the audio device to speaker. I then adjusted the audio with the slider bar and it worked. In my first post in this topic I set alsamixer -c 1. My card lists as device 0 so I believe I was in error. This topic can be assigned as "Solved". Thank you guys for giving me suggestions. Greatly appreciated! :)

[mitu]

Glad you got it working.
You can mark the topic solved by editing your first post in the topic.