So here is a clarification that I should have done when reported the bug...
Unespected behavior:
When plugging the headphone, speakers AND headphone output goes muted.
Expected behavior:
Only speakers goes muted, but not headphone output. After plugging headphones there should be sound at the headphones.
More details:
After plugging the headphone, at alsamixer the Speaker volume control gets muted (only this control) and it's volume goes to level zero: 0 <> 0
If I manually unmute Speaker volume at alsamixer, it's volume still at level zero and there is no sound to headphones. If I level UP the Speaker volume level I get sound to headphones and no sound at the speakers (wich is the expected behavior).
So here is a clarification that I should have done when reported the bug...
Unespected behavior:
When plugging the headphone, speakers AND headphone output goes muted.
Expected behavior:
Only speakers goes muted, but not headphone output. After plugging headphones there should be sound at the headphones.
More details:
After plugging the headphone, at alsamixer the Speaker volume control gets muted (only this control) and it's volume goes to level zero: 0 <> 0
If I manually unmute Speaker volume at alsamixer, it's volume still at level zero and there is no sound to headphones. If I level UP the Speaker volume level I get sound to headphones and no sound at the speakers (wich is the expected behavior).