1181323 – Pulseaudio don't detect USB webcam microphone after kernel update

Bug 1181323 - Pulseaudio don't detect USB webcam microphone after kernel update

Summary: Pulseaudio don't detect USB webcam microphone after kernel update

Status:	RESOLVED DUPLICATE of bug 1181014

Alias:	None

Product:	openSUSE Distribution
Classification:	openSUSE
Component:	Kernel (show other bugs)
Version:	Leap 15.2
Hardware:	x86-64 openSUSE Leap 15.2

Priority:	P5 - None Severity: Major (vote)
Target Milestone:	---
Assignee:	openSUSE Kernel Bugs
QA Contact:	E-mail List

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Reported:	2021-01-23 16:05 UTC by Bernd Lachner
Modified:	2021-01-24 07:52 UTC (History)
CC List:	2 users (show)

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Description Bernd Lachner 2021-01-23 16:05:33 UTC

After the last kernel update to

Linux 5.3.18-lp152.60-preempt #1 SMP PREEMPT Tue Jan 12 23:10:31 UTC 2021 (9898712)

the microphone of my USB Webcam (Logitech C270) isn't detected by Pulseaudio anymore.

If I boot with the old kernel

Linux 5.3.18-lp152.57-preempt #1 SMP PREEMPT Fri Dec 4 07:27:58 UTC 2020 (7be5551)

it works again.

With the new kernel Pulseaudio shows the following errors:

E: [pulseaudio] module-alsa-card.c: Failed to find a working profile.
E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="1" name="usb-046d_0825_59DC47E0-02" card_name="alsa_card.usb-046d_0825_59DC47E0-02" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed.


cat /proc/asound/cards outputs the following:
 0 [HDMI           ]: HDA-Intel - HDA ATI HDMI
                      HDA ATI HDMI at 0xfce60000 irq 100
 1 [U0x46d0x825    ]: USB-Audio - USB Device 0x46d:0x825
                      USB Device 0x46d:0x825 at usb-0000:2b:00.3-1, high speed
 2 [Generic        ]: HDA-Intel - HD-Audio Generic
                      HD-Audio Generic at 0xfc800000 irq 101
 3 [J370           ]: USB-Audio - Jabra Link 370
                      Jabra Link 370 at usb-0000:03:00.0-3, full speed

It seems OK. Device 1 is the microphone of the USB cam. All other devices are detected by Pulseaudio.

Comment 1 Eric Schirra 2021-01-23 20:28:30 UTC

It seems I have the same problem with two different Logitech webcams.
Will test if it is also gone with older kernel.

Comment 2 Eric Schirra 2021-01-23 22:29:37 UTC

Have test it with Leap 15.2 and webcam Logitech C270:

With kernel 5.3.18-lp152.60.1 microphone is mute.
With kernel 5.3.18-lp152.57.1 microphone works.

Other PC with other Logitech i will test it tomorrow.

The problem is kernel 5.3.18-lp152.60.1

Comment 3 Takashi Iwai 2021-01-24 07:52:12 UTC

A known issue, the fix will be merged in SLE15-SP2/openSUSE-15.2 git branch soon later.  Please use my temporary fix kernel (or KOTD later), keep the older kernel or copy the old snd-usb-audio.ko to the new kernel directory as a workaround.

*** This bug has been marked as a duplicate of bug 1181014 ***