Micrófono interno desconectado en HP Zbook G6 en Kubuntu 19.10

Micrófono interno desconectado en HP Zbook G6 en Kubuntu 19.10

Estoy intentando que mi micrófono interno funcione. En pavucontrol, no vi ningún dispositivo de entrada. [1] Cambié 'Audio incorporado' a 'Dúplex estéreo analógico'. Después de eso, hay un dispositivo de entrada, pero indica que está desconectado. [2] También intenté silenciar uno de los canales sin éxito. La captura en alsamixer está numerada. [3]. Puedo conectar mis auriculares inalámbricos como si fuera un micrófono.

A continuación se muestran algunos resultados:

arecord -l

**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC285 Analog [ALC285 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0

aplay -l

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC285 Analog [ALC285 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC285 Analog [ALC285 Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 9: HDMI 3 [HDMI 3]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 10: HDMI 4 [HDMI 4]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
lspci -v | grep Audio

01:00.1 Audio device: NVIDIA Corporation Device 10fa (rev a1)
sudo lshw -c sound

  *-multimedia              
       description: Audio device
       product: NVIDIA Corporation
       vendor: NVIDIA Corporation
       physical id: 0.1
       bus info: pci@0000:01:00.1
       version: a1
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: driver=snd_hda_intel latency=0
       resources: irq:185 memory:e6000000-e6003fff
  *-usb:1
       description: Video
       product: HP Full-HD Camera
       vendor: Quanta
       physical id: 7
       bus info: usb@1:7
       version: 0.10
       serial: 01.00.00
       capabilities: usb-2.01
       configuration: driver=uvcvideo maxpower=500mA speed=480Mbit/s
  *-multimedia
       description: Multimedia audio controller
       product: Cannon Lake PCH cAVS
       vendor: Intel Corporation
       physical id: 1f.3
       bus info: pci@0000:00:1f.3
       version: 10
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list
       configuration: driver=snd_hda_intel latency=64
       resources: iomemory:400-3ff iomemory:400-3ff irq:186 memory:404a108000-404a10bfff memory:404a000000-404a0fffff

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