W dniu 02.07.2018 o 18:04, Georg Chini pisze: > On 02.07.2018 17:58, Julian Sikorski wrote: >> W dniu 29.06.2018 o 21:47, Julian Sikorski pisze: >>> Hi list, >>> >>> I have noticed that the bluetooth connection between my laptop (Intel >>> 7260) and my headphones (Sennheiser Momentum Wirelless) is very >>> unreliable. While under Windows 10 devices stay connected for hours on >>> end, under Fedora 28 the connection is lost every few minutes at most. >>> Often the connection will be reestablished only to be lost again. >>> bluetoothd shows messages like: >>> >>> cze 29 21:31:13 snowball2 bluetoothd[3832]: Endpoint unregistered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSource >>> cze 29 21:31:13 snowball2 bluetoothd[3832]: Endpoint unregistered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSink >>> cze 29 21:31:13 snowball2 bluetoothd[3832]: Endpoint registered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSource >>> cze 29 21:31:13 snowball2 bluetoothd[3832]: Endpoint registered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSink >>> cze 29 21:31:39 snowball2 bluetoothd[3832]: >>> /org/bluez/hci0/dev_00_1B_66_81_8D_76/fd5: fd(25) ready >>> cze 29 21:33:02 snowball2 bluetoothd[3832]: Unable to get io data for >>> Headset Voice gateway: getpeername: Transport endpoint is not connected >>> (107) >>> cze 29 21:33:02 snowball2 bluetoothd[3832]: Endpoint unregistered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSource >>> cze 29 21:33:02 snowball2 bluetoothd[3832]: Endpoint unregistered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSink >>> cze 29 21:33:03 snowball2 bluetoothd[3832]: Endpoint registered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSource >>> cze 29 21:33:03 snowball2 bluetoothd[3832]: Endpoint registered: >>> sender=:1.145 path=/MediaEndpoint/A2DPSink >>> cze 29 21:33:31 snowball2 bluetoothd[3832]: >>> /org/bluez/hci0/dev_00_1B_66_81_8D_76/fd6: fd(25) ready >>> cze 29 21:35:38 snowball2 bluetoothd[3832]: Unable to get io data for >>> Headset Voice gateway: getpeername: Transport endpoint is not connected >>> (107) >>> >>> dmesg for the same period looks as follows: >>> >>> 2018-06-29T21:30:58,743292+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:31:12,613199+02:00 usb 2-1.4: USB disconnect, device >>> number 8 >>> 2018-06-29T21:31:12,809196+02:00 usb 2-1.4: new full-speed USB device >>> number 9 using ehci-pci >>> 2018-06-29T21:31:12,889200+02:00 usb 2-1.4: New USB device found, >>> idVendor=8087, idProduct=07dc, bcdDevice= 0.01 >>> 2018-06-29T21:31:12,889203+02:00 usb 2-1.4: New USB device strings: >>> Mfr=0, Product=0, SerialNumber=0 >>> 2018-06-29T21:31:12,903435+02:00 Bluetooth: hci0: read Intel version: >>> 3707100180012d0d2a >>> 2018-06-29T21:31:12,903438+02:00 Bluetooth: hci0: Intel device is >>> already patched. patch num: 2a >>> 2018-06-29T21:31:13,002369+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:31:28,853543+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:31:39,625447+02:00 input: 00:1B:66:81:8D:76 as >>> /devices/virtual/input/input31 >>> 2018-06-29T21:31:44,742251+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:32:00,746866+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:32:16,747075+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:32:32,746099+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:32:48,747212+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:33:02,403071+02:00 usb 2-1.4: USB disconnect, device >>> number 9 >>> 2018-06-29T21:33:02,595275+02:00 usb 2-1.4: new full-speed USB device >>> number 10 using ehci-pci >>> 2018-06-29T21:33:02,675493+02:00 usb 2-1.4: New USB device found, >>> idVendor=8087, idProduct=07dc, bcdDevice= 0.01 >>> 2018-06-29T21:33:02,675502+02:00 usb 2-1.4: New USB device strings: >>> Mfr=0, Product=0, SerialNumber=0 >>> 2018-06-29T21:33:02,691213+02:00 Bluetooth: hci0: read Intel version: >>> 3707100180012d0d2a >>> 2018-06-29T21:33:02,691216+02:00 Bluetooth: hci0: Intel device is >>> already patched. patch num: 2a >>> 2018-06-29T21:33:02,791228+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:33:18,854324+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:33:31,481782+02:00 input: 00:1B:66:81:8D:76 as >>> /devices/virtual/input/input32 >>> 2018-06-29T21:33:34,742175+02:00 Bluetooth: hci0: last event is not cmd >>> complete (0x0f) >>> 2018-06-29T21:35:37,864703+02:00 usb 2-1.4: USB disconnect, device >>> number 10 >>> 2018-06-29T21:35:38,056428+02:00 usb 2-1.4: new full-speed USB device >>> number 11 using ehci-pci >>> 2018-06-29T21:35:38,140706+02:00 usb 2-1.4: New USB device found, >>> idVendor=8087, idProduct=07dc, bcdDevice= 0.01 >>> 2018-06-29T21:35:38,140712+02:00 usb 2-1.4: New USB device strings: >>> Mfr=0, Product=0, SerialNumber=0 >>> 2018-06-29T21:35:38,155840+02:00 Bluetooth: hci0: read Intel version: >>> 3707100180012d0d2a >>> 2018-06-29T21:35:38,155843+02:00 Bluetooth: hci0: Intel device is >>> already patched. patch num: 2a >>> >>> I am not sure where to look further. Does it look like an issue with >>> pulseaudio, or a deeper problem with linux bluetooth stack? Thanks for >>> your input in advance! >>> >>> Best regards, >>> Julian >> This is what is logged by pulseaudio at the time the connection is lost: >> >> ( 118.064| 34.694) I: [bluetooth] module-bluez5-device.c: FD error: >> POLLERR POLLHUP >> ( 118.064|  0.000) I: [bluetooth] bluez5-util.c: Transport >> /org/bluez/hci0/dev_00_1B_66_81_8D_76/fd27 auto-released by BlueZ or >> already released >> ( 118.064|  0.000) I: [pulseaudio] backend-native.c: Lost RFCOMM >> connection. >> >> > From what you are writing, it looks to me as if the issue is in the USB > stack and the BT dongle keeps disconnecting/connecting. Have you > tried another dongle? Hi, I unfortunately do not own any other dongles. I tried getting some useful info with btmon but the log seems flooded with way too many messages to make anything out.
