Thinkbook 13s ITL G2 headphones hissing sound, noise fix

Kubuntu 20.04 LTS

Problem: wired headphones reproduce constant hissing sound, noise changes with the cursor movement etc.

Solution:

 sudo hda-verb /dev/snd/hwC0D0 0x1d SET_PIN_WIDGET_CONTROL 0x0

 

Sources:

https://www.reddit.com/r/thinkpad/comments/8j8208/audio_crackling_through_both_headphone_jack_and/

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1805079/comments/20