(In reply to Raymond from comment #57) > Do surround21 , surround41 appear in > > aplay -L null Discard all samples (playback) or generate zero samples (capture) pulse PulseAudio Sound Server default:CARD=CA0106 CA0106, CA0106 Default Audio Device sysdefault:CARD=CA0106 CA0106, CA0106 Default Audio Device front:CARD=CA0106,DEV=0 CA0106, CA0106 Front speakers rear:CARD=CA0106,DEV=0 CA0106, CA0106 Rear speakers center_lfe:CARD=CA0106,DEV=0 CA0106, CA0106 Center and Subwoofer speakers side:CARD=CA0106,DEV=0 CA0106, CA0106 Side speakers surround21:CARD=CA0106,DEV=0 CA0106, CA0106 2.1 Surround output to Front and Subwoofer speakers surround40:CARD=CA0106,DEV=0 CA0106, CA0106 4.0 Surround output to Front and Rear speakers surround41:CARD=CA0106,DEV=0 CA0106, CA0106 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=CA0106,DEV=0 CA0106, CA0106 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=CA0106,DEV=0 CA0106, CA0106 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=CA0106,DEV=0 CA0106, CA0106 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=CA0106,DEV=0 CA0106, CA0106 IEC958 (S/PDIF) Digital Audio Output dmix:CARD=CA0106,DEV=0 CA0106, CA0106 Direct sample mixing device dmix:CARD=CA0106,DEV=1 CA0106, CA0106 Direct sample mixing device dmix:CARD=CA0106,DEV=2 CA0106, CA0106 Direct sample mixing device dmix:CARD=CA0106,DEV=3 CA0106, CA0106 Direct sample mixing device dsnoop:CARD=CA0106,DEV=0 CA0106, CA0106 Direct sample snooping device dsnoop:CARD=CA0106,DEV=1 CA0106, CA0106 Direct sample snooping device dsnoop:CARD=CA0106,DEV=2 CA0106, CA0106 Direct sample snooping device dsnoop:CARD=CA0106,DEV=3 CA0106, CA0106 Direct sample snooping device hw:CARD=CA0106,DEV=0 CA0106, CA0106 Direct hardware device without any conversions hw:CARD=CA0106,DEV=1 CA0106, CA0106 Direct hardware device without any conversions hw:CARD=CA0106,DEV=2 CA0106, CA0106 Direct hardware device without any conversions hw:CARD=CA0106,DEV=3 CA0106, CA0106 Direct hardware device without any conversions plughw:CARD=CA0106,DEV=0 CA0106, CA0106 Hardware device with all software conversions plughw:CARD=CA0106,DEV=1 CA0106, CA0106 Hardware device with all software conversions plughw:CARD=CA0106,DEV=2 CA0106, CA0106 Hardware device with all software conversions plughw:CARD=CA0106,DEV=3 CA0106, CA0106 Hardware device with all software conversions default:CARD=PCH HDA Intel PCH, ALC889 Analog Default Audio Device sysdefault:CARD=PCH HDA Intel PCH, ALC889 Analog Default Audio Device front:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog Front speakers surround21:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog 2.1 Surround output to Front and Subwoofer speakers surround40:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog 4.0 Surround output to Front and Rear speakers surround41:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Digital IEC958 (S/PDIF) Digital Audio Output dmix:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog Direct sample mixing device dmix:CARD=PCH,DEV=1 HDA Intel PCH, ALC889 Digital Direct sample mixing device dsnoop:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog Direct sample snooping device dsnoop:CARD=PCH,DEV=1 HDA Intel PCH, ALC889 Digital Direct sample snooping device hw:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog Direct hardware device without any conversions hw:CARD=PCH,DEV=1 HDA Intel PCH, ALC889 Digital Direct hardware device without any conversions plughw:CARD=PCH,DEV=0 HDA Intel PCH, ALC889 Analog Hardware device with all software conversions plughw:CARD=PCH,DEV=1 HDA Intel PCH, ALC889 Digital Hardware device with all software conversions hdmi:CARD=NVidia,DEV=0 HDA NVidia, HDMI 0 HDMI Audio Output hdmi:CARD=NVidia,DEV=1 HDA NVidia, HDMI 1 HDMI Audio Output hdmi:CARD=NVidia,DEV=2 HDA NVidia, HDMI 2 HDMI Audio Output hdmi:CARD=NVidia,DEV=3 HDA NVidia, HDMI 3 HDMI Audio Output dmix:CARD=NVidia,DEV=3 HDA NVidia, HDMI 0 Direct sample mixing device dmix:CARD=NVidia,DEV=7 HDA NVidia, HDMI 1 Direct sample mixing device dmix:CARD=NVidia,DEV=8 HDA NVidia, HDMI 2 Direct sample mixing device dmix:CARD=NVidia,DEV=9 HDA NVidia, HDMI 3 Direct sample mixing device dsnoop:CARD=NVidia,DEV=3 HDA NVidia, HDMI 0 Direct sample snooping device dsnoop:CARD=NVidia,DEV=7 HDA NVidia, HDMI 1 Direct sample snooping device dsnoop:CARD=NVidia,DEV=8 HDA NVidia, HDMI 2 Direct sample snooping device dsnoop:CARD=NVidia,DEV=9 HDA NVidia, HDMI 3 Direct sample snooping device hw:CARD=NVidia,DEV=3 HDA NVidia, HDMI 0 Direct hardware device without any conversions hw:CARD=NVidia,DEV=7 HDA NVidia, HDMI 1 Direct hardware device without any conversions hw:CARD=NVidia,DEV=8 HDA NVidia, HDMI 2 Direct hardware device without any conversions hw:CARD=NVidia,DEV=9 HDA NVidia, HDMI 3 Direct hardware device without any conversions plughw:CARD=NVidia,DEV=3 HDA NVidia, HDMI 0 Hardware device with all software conversions plughw:CARD=NVidia,DEV=7 HDA NVidia, HDMI 1 Hardware device with all software conversions plughw:CARD=NVidia,DEV=8 HDA NVidia, HDMI 2 Hardware device with all software conversions plughw:CARD=NVidia,DEV=9 HDA NVidia, HDMI 3 Hardware device with all software conversions