On Thu, 31 Jul 2025 00:31:33 +0200, Pablo Scatizza wrote:

Dear ALSA developers,

I would like to report a regression affecting the microphone on my laptop using Intel's Ice Lake-LP audio controller with the `sof-hda-dsp` driver.

After upgrading `alsa-ucm-conf` to version 1.2.10-150600.3.5.1 (as distributed in openSUSE Leap 15.6), the internal microphone stops working. No capture is possible via `arecord` or any application. The device still shows up in `arecord -l`, but it does not receive audio input.

Rolling back to the previous version (1.2.10-150600.1.2) using: sudo zypper install --oldpackage alsa-ucm-conf-1.2.10-150600.1.2.noarch

restores full microphone functionality.

**System information:**

• Distribution: openSUSE Leap 15.6
• Kernel: 6.4.0-150600.23.53-default
• Audio device: Intel Corporation Ice Lake-LP Smart Sound Technology Audio

Controller (rev 30)

• ALSA driver: sof-hda-dsp

**Working `arecord -l` output with the old version:** card 0: sofhdadsp [sof-hda-dsp], device 0: HDA Analog ( *) [] card 0: sofhdadsp [sof-hda-dsp], device 6: DMIC (*) [] card 0: sofhdadsp [sof-hda-dsp], device 7: DMIC16kHz (*) []

Let me know if I can provide logs, diffs between UCM files, or further testing. I'd be happy to help.

It's a known regression that is specific to the previous maintenance update of alsa-ucm-conf package for SLE15-SP6 / openSUSE Leap 15.6. The fix has already queued for the release.

thanks,

Takashi