Description:
When headphone(analog) and HDMI connect to monitor, kde cannot auto switch audio to headphone.
What can we do is use plasmoid to adjust the audio channel manually.
Add the profile to /usr/share/pulseaudio/alsa-mixer/profile-sets/default.conf
.
sudo vim /usr/share/pulseaudio/alsa-mixer/profile-sets/default.conf
[Profile ouput:analog-stereo+output:hdmi-stereo]
description = SawaCustom
output-mappings = analog-stereo hdmi-stereo
input-mappings = analog-stereo
// save
pulseaudio --kill; sleep 1; pulseaudio --start
Reference:
https://askubuntu.com/questions/756390/kde-5-how-to-easily-switch-between-audio-outputs