On Thursday 24 May 2018 00:15:29 Jan Stolarek wrote:
Starting a few days ago volume up/down buttons no longer work. They will change sound volume by 5% up/down but no more than that. They also don't trigger an OSD. Also, mute button now works normally - it mutes and unmutes sound without any need to manually unmute the channels.
You changed the mixer. On the applet > select Master channel make sure "current mixer" is pulseaudio This will revert you back where you where. unmute broken, but working volume keys.