Hi Paul, I built kernels with bluetooth-next and it's the same problem on both systems. After reverting 84a4bb6548a29326564f0e659fb806 4503ecc1c7 the problem is gone. Best regards, Timo Am Fr., 7. Juni 2024 um 05:55 Uhr schrieb Paul Menzel <pmenzel@xxxxxxxxxxxxx>: > > #regzbot ^introduced: af1d425b6dc6 > > > Dear Timo, > > > Am 06.06.24 um 22:46 schrieb Timo Schröder: > > > 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. > > Thank you for bisecting the issue. > > > Let me know if you need anything from me. > > If you could test the master branch or bluetooth-next, and, if > reproducible, also with the upstream commit > 84a4bb6548a29326564f0e659fb8064503ecc1c7 reverted, that’d be great. > > > Kind regards, > > Paul