Internal microphone realtek ALC257 is not working in 24.04 Noble (Fujitsu WU4/H1)

[Bagus Tris]

I tried to record sound with my internal Mic. Nothing is working. I use arecord.

```
bagus:~$ arecord test.wav
arecord: main:834: audio open error: Operation not supported
bagus:~$ arecord -d 10 -f cd -t wav -D copy foobar.wav
ALSA lib pcm.c:2675:(snd_pcm_open_noupdate) Unknown PCM copy
arecord: main:834: audio open error: No such file or directory

bagus:~$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 6: DMIC (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: sofhdadsp [sof-hda-dsp], device 7: DMIC16kHz (*) []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

bagus:~$ lsb_release -rd
No LSB modules are available.
Description: Ubuntu Noble Numbat (development branch)
Release: 24.04

bagus:~$ apt-cache policy alsa-base
alsa-base:
  Installed: (none)
  Candidate: 1.0.25+dfsg-0ubuntu7
  Version table:
     1.0.25+dfsg-0ubuntu7 500
        500 http://archive.ubuntu.com/ubuntu noble/main amd64 Packages

```

[Bagus Tris (bagustris)]

The solution listed here works for my case above:
https://github.com/thesofproject/linux/issues/2460#issuecomment-779212719

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Oscar Hellström (bfpne)]

I'm actually on a ThinkPad z13 Gen 2, and arecord -l reports: ALC287 Analog. Only guessing that it's the same bug.