debcrafters-packages team mailing list archive

[Anas Muhamad Pauzi <2112330@xxxxxxxxxxxxxxxxxx>]

Thanks for your response.

To clarify: the internal microphone is *not working* on my ASUS VivoBook
even with the default Ubuntu 24.04 kernel (6.11). The issue is not caused
by the third-party mainline kernel — I tested kernel 6.15 via `mainline`
only in case it included upstream fixes, but the problem persists across
both.

*Important note*: The internal microphone *was working correctly under
Ubuntu 20.04 LTS*, which used kernel 5.x (likely 5.4 or 5.15 via HWE). This
suggests a regression or pin config change in kernel 6.x affecting Realtek
ALC256 on this hardware.

So to confirm:
- Ubuntu 20.04 (kernel 5.x): internal mic working
- Ubuntu 24.04 (kernel 6.11): internal mic not working
- Mainline kernel 6.15: internal mic still not working
- External USB mic: works fine
- Internal mic is detected by ALSA and PipeWire, not muted, but captures no
sound

This appears to be a codec/pin mapping issue affecting ALC256 under newer
kernels.

Happy to provide additional logs or test patches if needed.

Thanks again,
Anas

On Tue, Jun 3, 2025 at 7:00 PM Nick Rosbrook <2112330@xxxxxxxxxxxxxxxxxx>
wrote:

> >  - Upgraded to mainline kernel 6.15 via `mainline` tool
>
> To clarify: when you use the Ubuntu provided kernel, everything is okay?
> But when you install a third party kernel things break?
>
> If so, this is not something we can support, and you will need to find
> help elsewhere. If I misunderstood, please clarify the working vs. non-
> working scenarios.
>
> ** Changed in: alsa-driver (Ubuntu)
>        Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/2112330
>
> Title:
>   Internal microphone not working on ASUS VivoBook with Realtek ALC256
>   (Ubuntu 24.04 + kernel 6.15)
>
> Status in alsa-driver package in Ubuntu:
>   Incomplete
>
> Bug description:
>   I'm using an ASUS VivoBook (11th Gen Intel i7, Realtek ALC256 audio
>   codec). On Ubuntu 24.04.2 LTS, the internal microphone is detected and
>   listed correctly in PulseAudio/PipeWire and ALSA, but no input is
>   captured. Microphone volume and boost are set to 100%, not muted.
>   Input device appears as RUNNING in pactl, but no signal is recorded.
>
>   I tested:
>   - Ubuntu 24.04 with default kernel (6.11)
>   - Upgraded to mainline kernel 6.15 via `mainline` tool
>   - ALSA, PipeWire, PulseAudio all installed and working
>   - External USB mic works perfectly
>   - BIOS does not expose any audio/microphone control
>   - Mic also tested with `pw-record`, `arecord`, `gnome-sound-recorder` —
> all silent
>
>   ALSA info:
>   https://alsa-project.org/db/?f=6d6466ba903b2e08b351046571e0fc54ddd13981
>
>   It seems like a pin configuration or unsupported codec issue with
>   ALC256. Please advise if this requires a patch or model-specific
>   quirk.
>
>   Thank you.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2112330/+subscriptions
>
>

-- 
You received this bug notification because you are a member of
Debcrafters packages, which is subscribed to alsa-driver in Ubuntu.
https://bugs.launchpad.net/bugs/2112330

Title:
  Internal microphone not working on ASUS VivoBook with Realtek ALC256
  (Ubuntu 24.04 + kernel 6.15)

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  I'm using an ASUS VivoBook (11th Gen Intel i7, Realtek ALC256 audio
  codec). On Ubuntu 24.04.2 LTS, the internal microphone is detected and
  listed correctly in PulseAudio/PipeWire and ALSA, but no input is
  captured. Microphone volume and boost are set to 100%, not muted.
  Input device appears as RUNNING in pactl, but no signal is recorded.

  I tested:
  - Ubuntu 24.04 with default kernel (6.11)
  - Upgraded to mainline kernel 6.15 via `mainline` tool
  - ALSA, PipeWire, PulseAudio all installed and working
  - External USB mic works perfectly
  - BIOS does not expose any audio/microphone control
  - Mic also tested with `pw-record`, `arecord`, `gnome-sound-recorder` — all silent

  ALSA info:
  https://alsa-project.org/db/?f=6d6466ba903b2e08b351046571e0fc54ddd13981

  It seems like a pin configuration or unsupported codec issue with
  ALC256. Please advise if this requires a patch or model-specific
  quirk.

  Thank you.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/2112330/+subscriptions