Lenovo ThinkPad T420s no sound in Dock

Getting your soundcard to work, using Debian on non-i386 hardware, etc

Lenovo ThinkPad T420s no sound in Dock

Postby otas.pe » 2017-02-09 16:01

Hello

I would like to ask you for your help. I have laptop Lenovo ThinkPad T420s and Lenovo ThinkPad Mini Dock Series 3 4337. There is no sound during docking. Out of dock there is no problem, sound works. In dock there is no sound from integrated speakers nor external as well.

Sound card:
Code: Select all
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)


System:
Debian Stretch 64bit Gnome

If you have any idea please let me know.

Thank you in advance.

Otas
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby arochester » 2017-02-09 16:53

Do you Boot with the Dock attached?

Or do you Boot and then attach the Dock?
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby otas.pe » 2017-02-09 17:18

Dock was attached during boot.
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby arochester » 2017-02-10 15:37

On my (old) Thinkpad I can connect the dock and the sound buttons on the computer still work - Volume Up, Volume Down and Mute - but the sound comes through the dock.
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby otas.pe » 2017-02-15 17:18

Not the same here on my HW. Any idea?
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby otas.pe » 2017-02-26 15:31

Nobody knows how to help to pulseaudio to work sound through dock?
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby Head_on_a_Stick » 2017-02-26 16:04

Please post the output of:
Code: Select all
pacmd list-sinks

Run this command with the laptop docked and also with it un-docked so that we can compare the two.
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby otas.pe » 2017-02-27 17:55

Notebook docked

Code: Select all
ota@debian-laptop-t420s:~$ pacmd list-sinks
1 sink(s) available.
  * index: 0
   name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
   driver: <module-alsa-card.c>
   flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
   state: SUSPENDED
   suspend cause: IDLE
   priority: 9959
   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
   volume steps: 65537
   muted: no
   current latency: 0,00 ms
   max request: 0 KiB
   max rewind: 0 KiB
   monitor source: 0
   sample spec: s16le 2ch 48000Hz
   channel map: front-left,front-right
                Stereo
   used by: 0
   linked by: 1
   configured latency: 0,00 ms; range is 0,50 .. 341,33 ms
   card: 0 <alsa_card.pci-0000_00_1b.0>
   module: 6
   properties:
      alsa.resolution_bits = "16"
      device.api = "alsa"
      device.class = "sound"
      alsa.class = "generic"
      alsa.subclass = "generic-mix"
      alsa.name = "CX20590 Analog"
      alsa.id = "CX20590 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 0xf2a20000 irq 33"
      alsa.driver_name = "snd_hda_intel"
      device.bus_path = "pci-0000:00:1b.0"
      sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
      device.bus = "pci"
      device.vendor.id = "8086"
      device.vendor.name = "Intel Corporation"
      device.product.id = "1c20"
      device.product.name = "6 Series/C200 Series Chipset Family High Definition Audio Controller"
      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 = "Analogové stereo"
      device.description = "Vnitřní zvukový systém Analogové stereo"
      alsa.mixer_name = "Conexant CX20590"
      alsa.components = "HDA:14f1506e,17aa21d2,00100003"
      module-udev-detect.discovered = "1"
      device.icon_name = "audio-card-pci"
   ports:
      analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
         properties:
            device.icon_name = "audio-speakers"
      analog-output-headphones: Analogová sluchátka (priority 9000, latency offset 0 usec, available: no)
         properties:
            device.icon_name = "audio-headphones"
   active port: <analog-output-headphones>


Notebook undocked

Code: Select all
ota@debian-laptop-t420s:~$ pacmd list-sinks
1 sink(s) available.
  * index: 0
   name: <alsa_output.pci-0000_00_1b.0.analog-stereo>
   driver: <module-alsa-card.c>
   flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY FLAT_VOLUME DYNAMIC_LATENCY
   state: SUSPENDED
   suspend cause: IDLE
   priority: 9959
   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
   volume steps: 65537
   muted: no
   current latency: 0,00 ms
   max request: 0 KiB
   max rewind: 0 KiB
   monitor source: 0
   sample spec: s16le 2ch 44100Hz
   channel map: front-left,front-right
                Stereo
   used by: 0
   linked by: 1
   configured latency: 0,00 ms; range is 0,50 .. 371,52 ms
   card: 0 <alsa_card.pci-0000_00_1b.0>
   module: 6
   properties:
      alsa.resolution_bits = "16"
      device.api = "alsa"
      device.class = "sound"
      alsa.class = "generic"
      alsa.subclass = "generic-mix"
      alsa.name = "CX20590 Analog"
      alsa.id = "CX20590 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 0xf2a20000 irq 33"
      alsa.driver_name = "snd_hda_intel"
      device.bus_path = "pci-0000:00:1b.0"
      sysfs.path = "/devices/pci0000:00/0000:00:1b.0/sound/card0"
      device.bus = "pci"
      device.vendor.id = "8086"
      device.vendor.name = "Intel Corporation"
      device.product.id = "1c20"
      device.product.name = "6 Series/C200 Series Chipset Family High Definition Audio Controller"
      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 = "Analogové stereo"
      device.description = "Vnitřní zvukový systém Analogové stereo"
      alsa.mixer_name = "Conexant CX20590"
      alsa.components = "HDA:14f1506e,17aa21d2,00100003"
      module-udev-detect.discovered = "1"
      device.icon_name = "audio-card-pci"
   ports:
      analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
         properties:
            device.icon_name = "audio-speakers"
      analog-output-headphones: Analogová sluchátka (priority 9000, latency offset 0 usec, available: no)
         properties:
            device.icon_name = "audio-headphones"
   active port: <analog-output-headphones>


Thank you in advance for answer.
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Re: Lenovo ThinkPad T420s no sound in Dock

Postby bw123 » 2017-02-27 18:29

not much to go on...

Code: Select all
$ diff undk dk
19c19
<        sample spec: s16le 2ch 44100Hz
---
>        sample spec: s16le 2ch 48000Hz
24c24
<        configured latency: 0,00 ms; range is 0,50 .. 371,52 ms
---
>        configured latency: 0,00 ms; range is 0,50 .. 341,33 ms

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Re: Lenovo ThinkPad T420s no sound in Dock

Postby otas.pe » 2017-03-01 16:29

Thanks but there is no advice.
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