[SOLVED] Kubuntu 20.04 - Multiple Sound Outputs

[Avi512]

Hello Everyone,

Moved from 18.04 to Kubuntu 20.04 today. I noticed that there are too many sound outputs in 20.04 and I have not connected my laptop to any headset or HDMI cable.

In 18.04, there was only one sound output.

My system info:

Operating System: Kubuntu 20.04
KDE Plasma Version: 5.18.4
KDE Frameworks Version: 5.68.0
Qt Version: 5.12.8
Kernel Version: 5.4.0-29-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i5-8265U CPU @ 1.60GHz
Memory: 7.6 GiB of RAM

Thanks,
Avi

[Bings]

You can turn off unneeded audio devices in System Settings>Audio>Advanced

[Avi512]

Thanks for your response. I will try that.

[Avi512]

Found a solution:

(I could not sudo kate)
sudo apt install gedit
sudo gedit /etc/modprobe.d/alsa-base.conf

Add this line to the end of the file:
options snd-hda-intel dmic_detect=0

------
Reboot system

[kubicle]

(I could not sudo kate)

You don't need to "sudo" kate, just open the file normally in kate:

kate /etc/modprobe.d/alsa-base.conf

It will ask for your password when you save the file (if elevated privileges are necessary to save the file)

[Avi512]

Thanks @kubicle. Did not know that. Thanks for letting me know.

[mateMat]

Thanks @kubicle. Did not know that. Thanks for letting me know.

Hi,
It is actually not an ideal thing to use kate with sudo, you should use nano that is already installed (Ctrl+O to save and Ctrl+X to quit).

I tried the trick, but it did not work for me unfortunately.
Kubuntu 20.04 on a ASUS rog strix z270f

Moreover I tried this and it did not work:

1. Edit /etc/default/grub
   sudo vi /etc/default/grub
2. Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT and append snd_hda_intel.dmic_detect=0 to its end. For example:
   GRUB_CMDLINE_LINUX_DEFAULT="quiet splash snd_hda_intel.dmic_detect=0"
3. Update grub configuration
   sudo update-grub
4. Reboot
   
   Found here: https://askubuntu.com/questions/1218...223503#1223503

Still looking for a working solution. In the meantime I have to run killall pulseaudio to recover the sound output.