Hi Timo, On Thu, Jun 6, 2024 at 4:46 PM Timo Schröder <der.timosch@xxxxxxxxx> wrote: > > Hallo, > on my two notebooks, one with Ubuntu (Mainline Kernel 6.9.3, bluez > 5.7.2) and the other one with Manjaro (6.9.3, bluez 5.7.6) I'm having > problems with my Sony WH-1000XM3 and Shure BT1. Either A2DP or HFP/HSP > is not available after the connection has been established after a > reboot or a reconnection. It's reproducible that with the WH-1000XM3 > the A2DP profiles are missing and with the Shure BT1 HFP/HSP profiles > are missing. It also takes longer than usual to connect and I have a > log message in the journal: > > Jun 06 16:28:10 liebig bluetoothd[854]: > profiles/audio/avdtp.c:cancel_request() Discover: Connection timed out > (110) > > When I disable and re-enable bluetooth (while the Headsets are still > on) and trigger a reconnect from the notebooks, A2DP and HFP/HSP > Profiles are available again. > > I also tested it with 6.8.12 and it's the same problem. 6.8.11 and > 6.9.2 don't have the problem. > So I did a bisection. After reverting commit > af1d425b6dc67cd67809f835dd7afb6be4d43e03 "Bluetooth: HCI: Remove > HCI_AMP support" for 6.9.3 it's working again without problems. > > Let me know if you need anything from me. Wait what, that patch has nothing to do with any of these profiles not really sure how that would cause a regression really, are you sure you don't have actual connection timeout happening at the link layer and that by some chance didn't happen when running with HCI_AMP reverted? I'd be surprised that HCI_AMP has any effect in most controllers anyway, only virtual controllers was using that afaik. -- Luiz Augusto von Dentz
