> - 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
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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.
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