*** This bug is a duplicate of bug 1871794 ***
https://bugs.launchpad.net/bugs/1871794
Same issue here with Bose QC35 II and Thinkpad X1 Extreme (2nd gen).
Audio profile works just fine, but headset does not play any sound and the
microphone does not get any input. It was like this already in April and
currently on a fresh install of 20.04.
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https://bugs.launchpad.net/bugs/1878194
Title:
[Sennheiser HD 4.50 BTNC] Bluetooth headset not working when selecting
HSP/HFP audio profile in Focal Fossa
Status in bluez package in Ubuntu:
Confirmed
Status in pulseaudio package in Ubuntu:
Confirmed
Bug description:
After updating the release from Ubuntu 19.10 to 20.04, the bluetooth
headset doesn't work anymore when HSP/HFP profile is selected.
With Ubuntu 19.10 the headset was working, there was audio and the mic
was perfect for video conferencing.
[Steps to reproduce]
1. Connect headset (used blueman to setup and connect)
1.1. When connected the system automatically selects A2DP profile
2. Start playing audio (browser or other)
3. Change profile to HSP/HFP with pavucontrol (or blueman)
4. The audio disappears and microphone is not working (no input)
5. Optionally switch back to A2DP and the audio comes back
[Expected]
When switching to HSP/HFP the audio should keep playing and the microphone
should start working
[Notes]
I tried with pavucontrol to switch between profiles while playing audio from
a browser.
As side note there's a led in the headset that still blinks when switching
profile.
I tried deleting the pulse folder under user's profile .config without
success, also reinstalled packages and did a `sudo alsa force-reload`
and rebooting several times.
Note: not sure this is a duplicate of [Bug #1576559], it looks quite
different since the profile changes but the headset stops working.
[System info]
Ubuntu: 20.04 - Linux 5.4.0-29-generic x86_64
pulseaudio: 1:13.99.1-1ubuntu3
bluez: 5.53-0ubuntu3
Headset: Sennheiser HD 4.50 BTNC
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