How can I restore audio? LXLE/Ubuntu 16.0.4 LTS

Asked by Atri Abacabb on 2018-04-22

I installed the latest LXLE on my desktop and laptop last week after my previous OS failed. Audio on my laptop randomly stopped working yesterday. I am not sure what caused it--I spent most of the day writing an essay for my class. That evening when I decided to play some white noise, nothing would come out. Guayadeque Music would show audio is playing, and PulseAudio detects the laptop's hardware audio (though it doesn't register any headphones I plug in) like normal. No sound plays, though. I have confirmed audio is not muted. It is not only an issue with Guayadque because I have tried playing audio with it, Vivaldi, Seamonkey, VLC, and other apps.

The troubleshooting procedure at https://help.ubuntu.com/community/SoundTroubleshootingProcedure has not helped so far. Here is a .zip containing the files step 3 gave me:
https://mega.nz/#!QBYy2BaS

My laptop is a Lenovo ThinkPad T420 if that's useful. I would sincerely appreciate any assistance.

Thanks,
Atri

Question information

Language:
English Edit question
Status:
Solved
For:
Ubuntu alsa-driver Edit question
Assignee:
No assignee Edit question
Solved by:
Atri Abacabb
Solved:
2018-04-23
Last query:
2018-04-23
Last reply:
2018-04-22

Why have you encrypted the text. We need the key.

If you run the alsa-info.sh script and select to upload the text it will generate a link for you.

Whoops. Sorry about that. On Windows I always shared Mega links from the app, and it automatically attached the key. I'm not accustomed to sharing links via web. Here you go:

https://mega.nz/#!QBYy2BaS!IGL6fv1r1cFPiTT4HTkdylBnpWRr-1ejbxpMi5HuQ6Q

What is the output of:

wget -O alsa-info.sh http://www.alsa-project.org/alsa-info.sh && chmod +x ./alsa-info.sh && ./alsa-info.sh

Thanks

Strangely, I opened Gweled an hour ago and it played a sound. Then I closed Gweled, opened another program to test, ... and no audio. I opened Gweled again, and now there's no audio.

Strangely, I opened Gweled an hour ago and it played a sound. Then I closed Gweled, opened another program to test, ... and no audio. I opened Gweled again, and now there's no audio.

I fixed the problem. I had to use alsamixer to change the used sound card from "- (Default)" to my laptop's sound card. Thank you for volunteering your aid, actionparsnip. :)