Ubuntu – I don’t hear any sound on Kubuntu 18.04 LTS


I have Kubuntu installed on an HP Omen and everything was fine until 2 events happened that I attribute may be due to the sound being completely gone.

The first was that a new update of the Nvidia 440 driver arrived from repository ppa: graphics-drivers / ppa

And the other event was that I wanted to install GLava in Kubuntu from a PPA but it could not be installed due to the lack of a library.

After that, I left the computer on, and when I came back there was no sound at all.
There is no sound from the speakers and also when connecting headphones

I Uninstalled and reinstalled pulseaudio and nothing

I think it is a problem with HDA Nvidia with PavuControl all the profiles appear unplugged.
I don't know how to fix it

Later I changed the nvidia driver to nouveau and it was worse because now only a black screen appears to log in and when logging in I access a terminal, I don't know what commands to use in case there are any to solve these problems.

Best Answer

Had the same problem, found a solution here on askubuntu and it worked for me! Ubuntu 18.04 audio disappeared after update

tomas reported that after adding a boot parameter to grub, their audio was restored. https://askubuntu.com/a/1218063/718497

So to answer my own question. After a lot of digging I finally managed to get my audio working again. After finding this thread https://bugs.archlinux.org/task/64720 I tried temporarily adding the boot parameter snd_hda_intel.dmic_detect=0 by following this guide: How do I add a kernel boot parameter? to verify that it worked. It solved my problem, and I added the key permanently now, and the fix seems to persist after reboot.

Please upvote tomas if it helps. :-)

(I would've posted this as a comment, but my rep isn't 50 just yet)

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