BTW, just applying this patch[1] to bluez package from 18.04 fixes the a2dp problem for me with Sony WH-CH700N headphones. Patch applies cleanly to 5.48.
1. https://git.kernel.org/pub/scm/bluetooth/bluez.git/patch/?id=477ecca127c529611adbc53f08039cefaf86305d -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845046 Title: Bluetooth headphones/speaker such as Sony WH-1000XM3 default to low quality headset mode and fails to switch to A2DP when selected To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1845046/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
