It seems that PA refuses to use the maximum hardware volume of my sound card (Asus Xonar D1). As a result, the audio is very silent. I have the volume sliders in pavucontrol set to 100%, but PA only uses 40% (-20db) on the hardware mixer. In order to get acceptable sound, I have to: pulseaudio -k sudo alsamixer [raise volume to 0db manually] Isn't PA supposed to use 0db on the hardware by itself?