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I have been trying to use Alexa on my Raspberry Pi 3 B+ (running Stretch). I ran Alexa successfully, with a USB microphone and a speaker connected through the 3.5mm jack, about a week ago and went on to make a python program that does not in any way tamper with the 3.5mm jack or the audio driver. Today I started Alexa again and there was no audio output. I connected to the Pi through VNC and found that the sound icon on the top right of the screen is muted. I clicked the icon and the drop down menu says "No volume control on this device." I would like to know the cause and solution of this issue. I have searched for solutions through Bing but had no luck.

Yuxi L
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3 Answers3

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Also check the /boot/config.txt file. It should look like this:

# Enable audio (loads snd_bcm2835)
dtparam=audio=on
tbitson
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I suggest you run raspi-config, look at Advanced Options>Audio and make sure the "1 Force 3.5mm ('headphone') jack" option is selected.

Then reboot...

Jonathan
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Equivalently to going to raspi-config and forcing an output (hdmi or jack), if you are in GUI mode, you can more simply do a right-click on the audio icon that is still grey, to select the correct audio output. For me it was stuck in "no audio device" until i clicked on the icon.

agenis - code en bois
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