mSBC - microphone input randomly stops working
- PipeWire version (
pipewire --version
): 0.3.59 - Distribution and distribution version (
PRETTY_NAME
from/etc/os-release
): Arch Linux - Desktop Environment: KDE Plasma
- Kernel version (
uname -r
): 5.19.13-arch1-1 - BlueZ version (
bluetoothctl --version
): 5.65 -
lsusb
:
Bus 004 Device 004: ID 0bda:0411 Realtek Semiconductor Corp. Hub
Bus 004 Device 003: ID 0bda:0411 Realtek Semiconductor Corp. Hub
Bus 004 Device 002: ID 2109:8110 VIA Labs, Inc. Hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 008: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub
Bus 003 Device 007: ID 04f2:0116 Chicony Electronics Co., Ltd KU-2971/KU-0325 Keyboard
Bus 003 Device 005: ID 0bda:8771 Realtek Semiconductor Corp. Bluetooth Radio
Bus 003 Device 003: ID 0bda:5411 Realtek Semiconductor Corp. RTS5411 Hub
Bus 003 Device 006: ID 046d:0892 Logitech, Inc. C920 HD Pro Webcam
Bus 003 Device 004: ID 046d:c539 Logitech, Inc. Cordless Mouse Receiver
Bus 003 Device 002: ID 2109:2811 VIA Labs, Inc. Hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Bus 001 Device 003: ID 048d:5702 Integrated Technology Express, Inc. ITE Device
Bus 001 Device 002: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
- Bluetooth devices:
Device 04:5D:4B:5F:11:CC MDR-XB950B1
Description of Problem:
Microphone input from my BT headset randomly stops working. It can be 5 minutes or 30 minutes.
When it happens, the volume bar in pavucontrol simply isn't moving when I speak and I can't be heard. I can fix the issue temporarily by switching to another sound profile (e.g. aptX) and back to mSBC... until it breaks again.
I never had this problem with PulseAudio.
How Reproducible:
Reproduced with Skype and Microsoft Teams.
Steps to Reproduce:
- Use a BT headset with mSBC
- Join a call in Skype / MS Teams
- Microphone stops working after some time. There is no trigger, it can literally cut me out in the middle of a sentence.
Actual Results:
Silent input audio.
Expected Results:
Audio input all the time.
Additional Info (as attachments):
-
pw-dump > pw-dump.log
: pw-dump.log - Bluetooth debug log, see here:pipewire-bluez.log
In the Bluetooth log, I first noticed the issue at timestamp 12994.552934 and did the BT profile switching as I describe above. Then the same again at 13276.796466.
I don't see any unusual errors at that time, so it could be completely unrelated to Bluetooth support.
Edited by Luboš Doležel