Lenovo Yoga Pro 7 built-in speakers volume not controlled by GNOME/PipeWire

[2O77]

Device: Lenovo Yoga Pro 7 14IRH8
Sound card: sof-hda-dsp
Problem: ALSA Post-Mixer / Pre-Mixer controls work via alsamixer, but GNOME volume slider or PipeWire sink volume does not affect hardware output. Likely an issue in the UCM profile for this device.

Steps to reproduce:

1. Boot any Linux distribution.
2. Attempt to change volume via GNOME/KDE slider or pactl / PipeWire controls.
3. Observe that output volume of laptop speakers does not change.
4. Testing with headphones (AirPods, Beats) or external speakers works correctly.

Notes:

• This issue is specific to the built-in laptop speakers.
• Different desktop environments (GNOME, KDE) and distributions (Fedora GNOME, Fedora KDE, openSUSE Tumbleweed) were tested and exhibit the same problem.
• ALSA Post-Mixer / Pre-Mixer controls work correctly when adjusted via alsamixer.

Expected behavior:

• GNOME / PipeWire slider should affect the actual hardware output volume of the laptop speakers.

Suggested area:

• UCM profile for sof-hda-dsp on this Lenovo model may need adjustment.

I first create an issue on pipewire and they directed me here with this outcome:
Which mixer controls are used for the volume is controlled by the card UCM profile, so this is probably bug in the UCM profile. Its issue tracker is here: https://github.com/alsa-project/alsa-ucm-conf/issues

[perexg]

Attach output from alsa-info.sh --no-upload.

[2O77]

alsa-info.txt

[perexg]

It looks like a standard SOF HDA hardware.

Why you refer 'Pre-mixer' and 'Post-mixer' controls ? If you change them manually in alsamixer, speakers will be activated? I don't think so.

The Speaker Volume is zero (lowest) in the provided alsa-info file. Try to change this control at first.

[2O77]

Screencast.From.2025-11-18.19-00-13.mp4

Yes it was not 0 before, i changed it manually when tinkering around. But 0 and 100 makes no difference on the outcome of the volume and that is the problem. I only achieve changing the volume via 3rd party sliders like youtube, spotify and alsamixer pre-mixer and post-mixer sliders.

When attached to another speaker it works as expected. I attach a video of that what i'm doing exactly.

When master is 0 the volume becomes 0 too. And if i make the volume +100 it works too. There are no sound on the video i just want to show you what i'm doing exactly.

[perexg]

It looks like that the Realtek ALC287 codec is misconfigured somehow for your hardware. It looks like a driver fault. The speaker volume is controlled correctly as configured in UCM. The 'Post/Pre Mixer' controls are for DSP (digital gain for analog output path) I believe.

[2O77]

so what i can do about it

[2O77]

Thanks for your help. Please inform me about improvements.