> > > > Label says PiFi DAC+. v2.0 > > > > I'll need to look up how to apply the patch. I'm not familiar with how to do it. > > This look like driver bug since capabilities should be pvolume instead of volume if your sound card are half duplex > > Simple mixer control 'PCM',0 > Capabilities: volume penum > Playback channels: Front Left - Front Right > Capture channels: Front Left - Front Right > Limits: 0 - 215 Front Left: 172 [80%] Front Right: 172 [80%] > > Simple mixer control 'Playback',0 Capabilities: volume penum > Playback channels: Front Left - Front Right > Capture channels: Front Left - Front Right > Limits: 0 - 1 Front Left: 0 [0%] [-6.00dB] Front Right: 0 [0%] [-6.00dB] > > Simple mixer control 'Playback Boost',0 Capabilities: volume penum Playback channels: Front Left - Front Right > Capture channels: Front Left - Front Right > Limits: 0 - 1 Front Left: 0 [0%] [0.00dB] Front Right: 0 [0%] [0.00dB] > > > <a href="http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-output.conf.common">http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths/analog-output.conf.common</a> <a href="http://mailman.alsa-project.org/pipermail/alsa-devel/2015-March/089106.html">http://mailman.alsa-project.org/pipermail/alsa-devel/2015-March/089106.html</a> > >> > >> > > > >> > I'll check HiFiBerry's site and see if I can get it. > >> > > >> > >> <a href="https://www.hifiberry.com/dacplus/">https://www.hifiberry.com/dacplus/</a> > >> > >> What is the label on the black DAC chip ? > >> > >> Aplay/Arecord output > >> !!-------------------- > >> > >> APLAY > >> > >> **** List of PLAYBACK Hardware Devices **** > >> card 0: sndrpihifiberry [snd_rpi_hifiberry_dacplus], device 0: HiFiBerry DAC HiFi pcm512x-hifi-0 [] > >> Subdevices: 1/1 > >> Subdevice #0: subdevice #0 > >> > >> ARECORD > >> > >> **** List of CAPTURE Hardware Devices **** > >> > >> Seem half duplex > >> > >>