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I am using a Sony WH-1000XM3 headset, bluez, pulseaudio, and blueman.
Before, I could only use a2dp. When I tried to switch to HSP/HFP using pavucontrol, it just switched to 'off' instead. I don't remember the exact error I used to get. I never managed to solve this and used the laptop microphone and a2dp instead.
But today I realized that I was able to switch to HSP/HFP mode. When I did, I started to hear the the output of the headset microphone in my headphones, and I could only change volume using alsamixer, not pulseaudio.
So I am just curious, why does it work now? I have not changed any configuration related to this recently AFAIK.
I saw that there was an update to bluez fairly recently, but I couldn't find anything related to this.
Could there have been an update to the headset itself? Sometimes there are updates in the android app, but I don't know if that updates the app or the headphones, or both.
I think I will stick to using ad2p in any case, since the quality is so low using HSP/HFP.
Last edited by ja1a (2021-03-11 09:53:45)
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