Microfone interno desconectado no HP Zbook G6 no Kubuntu 19.10

Microfone interno desconectado no HP Zbook G6 no Kubuntu 19.10

Estou tentando fazer meu microfone interno funcionar. No pavucontrol, não vi nenhum dispositivo de entrada. [1] Mudei 'Áudio integrado' para 'Duplex estéreo analógico'. Depois disso, existe um dispositivo de entrada, mas informando que está desconectado. [2] Também tentei silenciar um dos canais sem sucesso. A captura no alsamixer está numerada. [3]. Posso conectar meu fone de ouvido sem fio como um microfone.

Aqui estão algumas saídas:

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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