External Microphone plugged into pink mic jack is not detected. Do you know how to fix this?
By Emily Wilson •
An external microphone plugged into the pink mic jack does not work. It shows up on alsamixer as Rear Mic. On Pulse Audio the recording source is Built-in Audio Analog Stereo. Using Ubuntu 20.04. My sound card is HDA Intel PCH with a Realtek ALC892 chip. The motherboard is Cybernet Manufactering Inc. iOne-S20 with chipset: Intel Sunrise Point LPC.
I have tried various suggestions from several websites to no avail. I have purged and reinstalled pulse audio and alsa. Ouput from pactl list sources:
Source #1 State: RUNNING Name: alsa_output.platform-snd_aloop.0.analog-surround-41.monitor Description: Monitor of Built-in Audio Analog Surround 4.1 Driver: module-alsa-card.c Sample Specification: s16le 5ch 44100Hz Channel Map: front-left,front-right,rear-left,rear-right,lfe Owner Module: 20 Mute: no Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB, rear-left: 65536 / 100% / 0.00 dB, rear-right: 65536 / 100% / 0.00 dB, lfe: 65536 / 100% / 0.00 dB balance 0.00 Base Volume: 65536 / 100% / 0.00 dB Monitor of Sink: alsa_output.platform-snd_aloop.0.analog-surround-41 Latency: 0 usec, configured 40000 usec Flags: DECIBEL_VOLUME LATENCY Properties: device.description = "Monitor of Built-in Audio Analog Surround 4.1" device.class = "monitor" alsa.card = "2" alsa.card_name = "Loopback" alsa.long_card_name = "Loopback 1" alsa.driver_name = "snd_aloop" device.bus_path = "platform-snd_aloop.0" sysfs.path = "/devices/platform/snd_aloop.0/sound/card2" device.form_factor = "internal" device.string = "2" module-udev-detect.discovered = "1" device.icon_name = "audio-card" Formats: pcm
Source #2 State: RUNNING Name: alsa_input.platform-snd_aloop.0.analog-stereo Description: Built-in Audio Analog Stereo Driver: module-alsa-card.c Sample Specification: s16le 2ch 44100Hz Channel Map: front-left,front-right Owner Module: 20 Mute: no Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB balance 0.00 Base Volume: 65536 / 100% / 0.00 dB Monitor of Sink: n/a Latency: 706 usec, configured 24988 usec Flags: HARDWARE DECIBEL_VOLUME LATENCY Properties: alsa.resolution_bits = "16" device.api = "alsa" device.class = "sound" alsa.class = "generic" alsa.subclass = "generic-mix" alsa.name = "Loopback PCM" alsa.id = "Loopback PCM" alsa.subdevice = "0" alsa.subdevice_name = "subdevice #0" alsa.device = "0" alsa.card = "2" alsa.card_name = "Loopback" alsa.long_card_name = "Loopback 1" alsa.driver_name = "snd_aloop" device.bus_path = "platform-snd_aloop.0" sysfs.path = "/devices/platform/snd_aloop.0/sound/card2" device.form_factor = "internal" device.string = "front:2" device.buffering.buffer_size = "352800" device.buffering.fragment_size = "352800" device.access_mode = "mmap+timer" device.profile.name = "analog-stereo" device.profile.description = "Analog Stereo" device.description = "Built-in Audio Analog Stereo" module-udev-detect.discovered = "1" device.icon_name = "audio-card" Ports: analog-input: Analog Input (priority: 10000) Active Port: analog-input Formats: pcm
Source #3 State: RUNNING Name: alsa_output.pci-0000_00_1f.3.analog-stereo.monitor Description: Monitor of Built-in Audio Analog Stereo Driver: module-alsa-card.c Sample Specification: s16le 2ch 44100Hz Channel Map: front-left,front-right Owner Module: 21 Mute: no Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB balance 0.00 Base Volume: 65536 / 100% / 0.00 dB Monitor of Sink: alsa_output.pci-0000_00_1f.3.analog-stereo Latency: 0 usec, configured 40000 usec Flags: DECIBEL_VOLUME LATENCY Properties: device.description = "Monitor of Built-in Audio Analog Stereo" device.class = "monitor" alsa.card = "0" alsa.card_name = "HDA Intel PCH" alsa.long_card_name = "HDA Intel PCH at 0xdf240000 irq 131" alsa.driver_name = "snd_hda_intel" device.bus_path = "pci-0000:00:1f.3" sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0" device.bus = "pci" device.vendor.id = "8086" device.vendor.name = "Intel Corporation" device.product.id = "9d71" device.product.name = "Sunrise Point-LP HD Audio" device.form_factor = "internal" device.string = "0" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" Formats: pcm
Source #4 State: RUNNING Name: alsa_input.pci-0000_00_1f.3.analog-stereo Description: Built-in Audio Analog Stereo Driver: module-alsa-card.c Sample Specification: s16le 2ch 44100Hz Channel Map: front-left,front-right Owner Module: 21 Mute: no Volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / 0.00 dB balance 0.00 Base Volume: 6554 / 10% / -60.00 dB Monitor of Sink: n/a Latency: 1881 usec, configured 40000 usec Flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY Properties: alsa.resolution_bits = "16" device.api = "alsa" device.class = "sound" alsa.class = "generic" alsa.subclass = "generic-mix" alsa.name = "ALC892 Analog" alsa.id = "ALC892 Analog" alsa.subdevice = "0" alsa.subdevice_name = "subdevice #0" alsa.device = "0" alsa.card = "0" alsa.card_name = "HDA Intel PCH" alsa.long_card_name = "HDA Intel PCH at 0xdf240000 irq 131" alsa.driver_name = "snd_hda_intel" device.bus_path = "pci-0000:00:1f.3" sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0" device.bus = "pci" device.vendor.id = "8086" device.vendor.name = "Intel Corporation" device.product.id = "9d71" device.product.name = "Sunrise Point-LP HD Audio" device.form_factor = "internal" device.string = "front:0" device.buffering.buffer_size = "65536" device.buffering.fragment_size = "32768" device.access_mode = "mmap+timer" device.profile.name = "analog-stereo" device.profile.description = "Analog Stereo" device.description = "Built-in Audio Analog Stereo" module-udev-detect.discovered = "1" device.icon_name = "audio-card-pci" Ports: analog-input-front-mic: Front Microphone (priority: 8500, available) analog-input-rear-mic: Rear Microphone (priority: 8200, available) analog-input-internal-mic: Internal Microphone (priority: 8900, not available) Active Port: analog-input-rear-mic Formats: pcm
