Yes, it does. Although this time the volume OSD appeared on screen with the volume level decreased by one unit (I have my MP volume set to maximum because normally I control the volume level on my Sony analogue amplifier). So the first press of VOLUME_DOWN does seem to have worked, but then the live-TV video froze, and later the audio stopped. Logs attached. I will do the other test next.If you select 'Master' as the volume control in MP config, does the same thing happen?
-- from CyberSimian in the UK