Dear bluez developers, whenever I start bluetooth scanning on my PC, any audio playback over bluetooth stutters. Example #1 with GUI tools: https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/409 Example #2 with bluetoothctl: 1. Connect a bluetooth speaker or headphone to the PC 2. start audio playback (e.g. using totem) 3. run `bluetoothctl scan on` What happens: As long as bluetooth scan is runnig, audio playback stutters. Once I kill `bluetoothctl scan on` or close gnome's control center, audio playback is back to normal. Would it be possible to modify the scanning behaviour in a way that it does not make audio playback stutter? Software versions (Fedora 34): bluez 5.58 (5.58-2.fc34.x86_64) kernel 5.12.7 (5.12.7-300.fc34.x86_64) PS: I've attached the output of `$ bluetoothctl info` and `$ bluetoothctl show` but I doubt it is relevant for this issue. -- Kind Regards Chris
Device 94:DB:56:[redacted] (public) Name: WH-1000XM3 Alias: WH-1000XM3 Class: 0x00240404 Icon: audio-card Paired: yes Trusted: yes Blocked: no Connected: yes LegacyPairing: no UUID: Vendor specific (00000000-deca-fade-deca-deafdecacaff) UUID: Headset (00001108-0000-1000-8000-00805f9b34fb) UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Handsfree (0000111e-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) UUID: Vendor specific (7b265b0e-2232-4d45-bef4-bb8ae62f813d) UUID: Vendor specific (81c2e72a-0591-443e-a1ff-05f988593351) UUID: Vendor specific (931c7e8a-540f-4686-b798-e8df0a2ad9f7) UUID: Vendor specific (96cc203e-5068-46ad-b32d-e316f5e069ba) UUID: Vendor specific (b9b213ce-eeab-49e4-8fd9-aa478ed1b26b) UUID: Vendor specific (f8d1fbe4-7966-4334-8024-ff96c9330e15) Modalias: usb:v054Cp0CD3d0452
Controller 00:DB:DF:[redacted] (public) Name: [redacted] Alias: [redacted] Class: 0x007c010c Powered: yes Discoverable: yes DiscoverableTimeout: 0x00000000 Pairable: no UUID: A/V Remote Control (0000110e-0000-1000-8000-00805f9b34fb) UUID: Audio Source (0000110a-0000-1000-8000-00805f9b34fb) UUID: PnP Information (00001200-0000-1000-8000-00805f9b34fb) UUID: Audio Sink (0000110b-0000-1000-8000-00805f9b34fb) UUID: Headset (00001108-0000-1000-8000-00805f9b34fb) UUID: Message Notification Se.. (00001133-0000-1000-8000-00805f9b34fb) UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb) UUID: Handsfree Audio Gateway (0000111f-0000-1000-8000-00805f9b34fb) UUID: Message Access Server (00001132-0000-1000-8000-00805f9b34fb) UUID: OBEX File Transfer (00001106-0000-1000-8000-00805f9b34fb) UUID: Phonebook Access Server (0000112f-0000-1000-8000-00805f9b34fb) UUID: IrMC Sync (00001104-0000-1000-8000-00805f9b34fb) UUID: OBEX Object Push (00001105-0000-1000-8000-00805f9b34fb) Modalias: usb:v1D6Bp0246d053A Discovering: no
