Ubuntu

Ubuntu 18.04 No audio from speakers. Headphones working. Surface Pro 3

Asked by Carlos Roque

I updated my Surface Pro 3 From Ubuntu 17.10 to Ubuntu 18.04 (did a clean install) and now I can only get audio when using the headphone jack.
I have already tried all these:
[troubleshooting guide](https://help.ubuntu.com/community/SoundTroubleshootingProcedure)
[this answer](https://askubuntu.com/questions/117842/no-sound-from-speakers-but-headphones-work)
[another answer](https://askubuntu.com/questions/829520/ubuntu-16-04-no-sound-from-speakers-only-headphones-working)

I went back and tested the live CD and even the live cd has no audio through the speakers. so this must be related to 18.04. I never had sound issues before and under windows audio still works correctly.
Does anyone have any idea how to fix this?

**Update:** here is my alsa iformation http://www.alsa-project.org/db/?f=8bf135db52610a603014779ef24041a491c8a32d

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Carlos Roque
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actionparsnip (andrew-woodhead666) said : 		#1

https://www.reddit.com/r/SurfaceLinux/comments/4v8xth/ubuntu_1604_on_sp3_no_sound_after_fresh_install/

A few suggestions here.....

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Carlos Roque (carlosrroque) said : 		#2

thanks but that didn't solve my problem.

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actionparsnip (andrew-woodhead666) said : 		#3

Have you checked alsamixer to see if all levels are cranked and unmuted.

Use M to un/mute. Cursor keys as you expect and ESC to exit. Use F6 to switch the device manipulated

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Carlos Roque (carlosrroque) said : 		#4

Yeah, already tried thay. No luck

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Carlos Roque (carlosrroque) said : 		#5

HOLY CRAP... I removed the /etc/modprobe.d/alsa-base.conf and now sounds works !
i am going to try adding line by line to see which config entry was breaking the audio

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Carlos Roque (carlosrroque) said : 		#6

welp.... I have no idea what just happened.... but renaming /etc/modprobe.d/alsa-base.conf to /etc/modprobe.d/alsa-base.bk , then rebooting the computer fixed the my speaker sound issue.

I then restored line by line in to /etc/modprobe.d/alsa-base.conf, rebooting between restored lines, until all lines were back.... and ... it still worked!
so I restored the original /etc/modprobe.d/alsa-base.conf and rebooted the computer and everything was still working....
so I am not sure what the problem was but is now fixed.

thanks @actionparsnip for patiently trying to help

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actionparsnip (andrew-woodhead666) said : 		#7

Good share. Hopefully this will help others.

You could report a bug with your solution as a fix

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Carlos Roque (carlosrroque) said : 		#8

will do. thanks