(note: that chipset is probably used by all recent thinkpad, which probably show that when iphones have no jack anymore, BT might not be so much used by Linux users)
If I do a "modprobe" (https://ubuntuforums.org/showthread.php?t=2346879) modprobe -r btusb modprobe btusb I get that: May 30 18:53:06 pluto kernel: usbcore: deregistering interface driver btusb May 30 18:53:06 pluto kernel: Bluetooth: hci0 urb ffff8de95167e600 failed to resubmit (2) May 30 18:53:06 pluto systemd[1]: Starting Load/Save RF Kill Switch Status... May 30 18:53:06 pluto bluetoothd[457]: Endpoint unregistered: sender=:1.33 path=/MediaEndpoint/A2DPSource May 30 18:53:06 pluto systemd[1]: bluetooth.target: Unit not needed anymore. Stopping. May 30 18:53:06 pluto bluetoothd[457]: Endpoint unregistered: sender=:1.33 path=/MediaEndpoint/A2DPSink May 30 18:53:06 pluto systemd[1]: Stopped target Bluetooth. May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:06 pluto systemd[1]: Started Load/Save RF Kill Switch Status. May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:11 pluto systemd[1]: Reached target Bluetooth. May 30 18:53:11 pluto kernel: usbcore: registered new interface driver btusb May 30 18:53:11 pluto kernel: Bluetooth: hci0: BCM: chip id 63 May 30 18:53:11 pluto kernel: Bluetooth: hci0: ChromeLinux_8A81 May 30 18:53:11 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000 May 30 18:53:11 pluto kernel: bluetooth hci0: firmware: direct-loading firmware brcm/BCM20702A1-0a5c-21e6.hcd May 30 18:53:12 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 1757 May 30 18:53:12 pluto kernel: Bluetooth: hci0: Broadcom Bluetooth Device root@pluto:/lib/firmware/brcm# hciconfig -a hci0: Type: Primary Bus: USB BD Address: 9C:2A:70:82:50:FB ACL MTU: 1021:8 SCO MTU: 64:1 DOWN RX bytes:3374 acl:0 sco:0 events:409 errors:0 TX bytes:36217 acl:0 sco:0 commands:408 errors:0 Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: RSWITCH SNIFF Link mode: SLAVE ACCEPT Seems nice, but actually, I do not have any adapter anymore: root@pluto:/lib/firmware/brcm# bluetoothctl [bluetooth]# list [bluetooth]# You can see that here too: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=801084 ==== I also did that: sudo cp /lib/firmware/brcm/BCM43142A0-0a5c-21e6.hcd /lib/firmware/brcm/BCM.hcd Then modprobe -r and modprobe btusb And then the result: "bluetooth.target: Unit not needed anymore. Stopping" May 30 18:53:06 pluto kernel: usbcore: deregistering interface driver btusb May 30 18:53:06 pluto kernel: Bluetooth: hci0 urb ffff8de95167e600 failed to resubmit (2) May 30 18:53:06 pluto systemd[1]: Starting Load/Save RF Kill Switch Status... May 30 18:53:06 pluto bluetoothd[457]: Endpoint unregistered: sender=:1.33 path=/MediaEndpoint/A2DPSource May 30 18:53:06 pluto systemd[1]: bluetooth.target: Unit not needed anymore. Stopping. May 30 18:53:06 pluto bluetoothd[457]: Endpoint unregistered: sender=:1.33 path=/MediaEndpoint/A2DPSink May 30 18:53:06 pluto systemd[1]: Stopped target Bluetooth. May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:06 pluto systemd[1]: Started Load/Save RF Kill Switch Status. May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:06 pluto dbus[458]: [system] Rejected send message, 3 matched rules; type="error", sender=":1.33" (uid=1000 pid=1859 comm="/usr/bin/ pulseaudio --start --log-target=syslog ") in May 30 18:53:11 pluto systemd[1]: Reached target Bluetooth. May 30 18:53:11 pluto kernel: usbcore: registered new interface driver btusb May 30 18:53:11 pluto kernel: Bluetooth: hci0: BCM: chip id 63 May 30 18:53:11 pluto kernel: Bluetooth: hci0: ChromeLinux_8A81 May 30 18:53:11 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000 May 30 18:53:11 pluto kernel: bluetooth hci0: firmware: direct-loading firmware brcm/BCM20702A1-0a5c-21e6.hcd May 30 18:53:12 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 1757 May 30 18:53:12 pluto kernel: Bluetooth: hci0: Broadcom Bluetooth Device May 30 18:55:41 pluto wpa_supplicant[570]: wlan1: WPA: Group rekeying completed with 7c:03:d8:81:d2:53 [GTK=CCMP] May 30 18:56:48 pluto kernel: Bluetooth: hci0: BCM: chip id 63 May 30 18:56:48 pluto kernel: Bluetooth: hci0: Broadcom Bluetooth Device May 30 18:56:48 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 1757 May 30 18:56:48 pluto kernel: bluetooth hci0: firmware: direct-loading firmware brcm/BCM20702A1-0a5c-21e6.hcd May 30 18:56:49 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) build 1757 May 30 18:56:49 pluto kernel: Bluetooth: hci0: Broadcom Bluetooth Device May 30 19:02:43 pluto systemd[1]: Starting Load/Save RF Kill Switch Status... May 30 19:02:44 pluto kernel: usbcore: deregistering interface driver btusb May 30 19:02:43 pluto systemd[1]: bluetooth.target: Unit not needed anymore. Stopping. May 30 19:02:43 pluto systemd[1]: Stopped target Bluetooth. May 30 19:02:43 pluto systemd[1]: Started Load/Save RF Kill Switch Status. Things couldn't be worse. On Tuesday, May 30, 2017 5:50:39 PM CEST you wrote: > Dear all, (debian/sid) > > Because I had this error in journalctl: > Mar 09 15:17:09 pluto kernel: Bluetooth: hci0: BCM20702A > Mar 09 15:17:09 pluto kernel: Bluetooth: hci0: BCM20702A1 (001.002.014) > build 0000 > Mar 09 15:17:09 pluto kernel: bluetooth hci0: firmware: failed to load brcm/ > BCM20702A1-0a5c-21e6.hcd (-2) > Mar 09 15:17:09 pluto kernel: bluetooth hci0: Direct firmware load for brcm/ > BCM20702A1-0a5c-21e6.hcd failed with error -2 > Mar 09 15:17:09 pluto kernel: Bluetooth: hci0: BCM: Patch brcm/ > BCM20702A1-0a5c-21e6.hcd not found > > And because my BT was working... But not so well... > > And after taking advices on #debian-next... > > (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=831592) > > I followed the instructions there: > https://github.com/winterheart/broadcom-bt-firmware > > and simply copied the file: > BCM20702A1-0a5c-21e6.hcd > there: > /lib/firmware/brcm > > ===== > > After that, and some reboot, I didn't have any bluetooth at all anymore: > The only thing BT in journalctl was: > May 30 17:18:03 pluto dbus[416]: [system] Failed to activate service > 'org.bluez': timed out > > And no trace anymore of the mere string "BCM20702" (ignore case option...) > > I did even thought that it had "burnt" my chipset > > ===== > > So I removed the file BCM20702A1-0a5c-21e6.hcd altogether, > > And rebooted, > > And now I do have BT again; > > Though minimalist and not working well... > (actually can't be used, broken; can be use 1 minute, with difficulties...) > > ===== > > I would appreciate help to have that working. > > > Best, > Chris