Lenovo T14 Gen 1 No Mic and Sound

I have the Intel version and I'm using Kernel 5.4.0-58-generic with 20.04.

Those are my recent logs:

11:16:42 gdm-session-wor: gkr-pam: unable to locate daemon control file
11:16:33 kernel: iwlwifi 0000:00:14.3: BIOS contains WGDS but no WRDS
11:16:31 kernel: ACPI Error: Aborting method \_SB.HIDD._DSM due to previous error (AE_AML_OPERAND_TYPE) (20190816/psparse-529)

This is my pulseaudio version 13.99.1 and the -D output:

E: [pulseaudio] main.c: Daemon startup failed.

2 Answers

After much digging I found out Alsa does recognized my mic and Pulseaudio does not, not sure why.

But I combined several steps that solved the issue for me:

1. I removed Pulseaudio:

   sudo apt-get purge pulseaudio

   sudo apt-get purge pavucontrol

   rm -rf ~/.pulse/

2. Reboot (after rebooting, no input or output device were found).

3. Add the following to /etc/modprobe.d/blacklist.conf

   blacklist snd_hda_intel

   blacklist snd_soc_skl

4. Add the following to /etc/pulse/default.pa (note replace the device with your own device address)

   load-module module-alsa-source device=hw:0,0

5. Reinstall Pulseaudio:

   sudo apt-get install pulseaudio

6. Reboot.

After finale reboot all input and output devices were working including internal Mic and Audio.

• Part of the solution was taken from here.

For me the installation had no issues. I just had to select the right card (hidden) in alsamixer, unmute it and raise its volume (zero by default).

$ alsamixer

Press F6

Choose the sound card (in my case, sof-hda-dsp)

Use the arrow keys to choose the master channel, raise the volume and unmute with M.

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