I too have had the issue shown here and instead of mixing the levels 0% and 100% I just clicked the Configuration tab in pavucontrol and set the Profile to:
Analog Stereo Output + Analog Mono Input
And all my issues were resolved.
Appears the Stereo Input setting is what is causing the issue.
I too have had the issue shown here and instead of mixing the levels 0% and 100% I just clicked the Configuration tab in pavucontrol and set the Profile to:
Analog Stereo Output + Analog Mono Input
And all my issues were resolved.
Appears the Stereo Input setting is what is causing the issue.