What worked for me was changing profile to Analog Surround 4.0 Output (or any other surround option) in sound preferences hardware tab. The surround tab in alsamixer controls the volume smoothly for me.
What worked for me was changing profile to Analog Surround 4.0 Output (or any other surround option) in sound preferences hardware tab. The surround tab in alsamixer controls the volume smoothly for me.