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audiobluetoothkernelubuntu-20.04

Sound not working Focal Fossa Ubuntu 20.04

I have been using ubuntu 20.04 recently and have a HP pavillion laptop with B&O speakers. However i am not able to hear any sound. though, Bluetooth is working fine.

I have tried many solutions such as :

*sudo apt purge timidity-daemon

*sudo alsa force-reload

*sudo apt install pavucontrol and running pavucontrol.

None of the solutions have worked for me yet.

EDIT: Later I assumed it to be a kernel bug and say a solution using the following commands:

sudo add-apt-repository ppa:kaihengfeng/fix-lp1869819
sudo apt-get update

after that i have tried reinstalling pulseaudio. And now bluetooth devices just after getting connected are automatically disconnected, do not play any sound either.

Solution

  • Finally, after surfing a lot through the net and reading about options of alsa for NVIDIA aound controller I got the following solution

    2 files are to be changed

    1. /etc/modprobe.d/alsa-base.conf
    2. /etc/modprobe.d/blacklist.conf

    Changes in File 1.

    • open the file using root
    • add the following line to the bottom of the file options snd-hda-intel dmic_detect=0
    • save and exit the file

    Changes in File 2.

    • open the file using root
    • add the following to the bottom of the line blacklist snd_soc_skl
    • save and exit the file.

    Reboot and Enjoy with the restored sound!