Every once in a while, my sound stops working. So, I did what I normally do and reinstalled alsa-base, pulseaudio, and libasound2 then restarted. After reboot, the sound worked again, but the volume slider has no effect on master volume, which I can change through alsamixer. How could I fix this? Thanks.
11 Answer
Go to pulseaudio --> output devices --> click on the lock. Worked for me. When hovering over the lock, it says lock channels together.