我有一个以前在另一个系统上使用过的蓝牙遥控器，现在正在运行4.52 BLUEZ，与遥控器配对后，bluetoothctl出现错误。
连接到蓝牙ctl
pi@marcophone:~$ sudo bluetoothctl
Agent registered
[CHG] Controller B8:27:EB:1B:C4:00 Pairable: yes
[CHG] Device 20:C3:8F:BD:93:40 Connected: yes
[Remote RC]# trust
Changing 20:C3:8F:BD:93:40 trust succeeded
这里我已成功连接到遥控器
[RC]# pair
Attempting to pair with 20:C3:8F:BD:93:40
[CHG] Device 20:C3:8F:BD:93:40 Paired: yes
Pairing successful
此后bluetoothctl立即断开连接
[DEL] Descriptor (Handle 0x2ec8)
/org/bluez/hci0/dev_20_C3_8F_BD_93_40/service0008/char0009/desc000b
00002902-0000-1000-8000-00805f9b34fb
Client Characteristic Configuration
[DEL] Characteristic (Handle 0x4cf0)
/org/bluez/hci0/dev_20_C3_8F_BD_93_40/service0008/char0009
00002a05-0000-1000-8000-00805f9b34fb
Service Changed
[DEL] Primary Service (Handle 0x0073)
/org/bluez/hci0/dev_20_C3_8F_BD_93_40/service0008
00001801-0000-1000-8000-00805f9b34fb
Generic Attribute Profile
[DEL] Characteristic (Handle 0x4cf0)
/org/bluez/hci0/dev_20_C3_8F_BD_93_40/service000c/char000d
00002a50-0000-1000-8000-00805f9b34fb
PnP ID
[DEL] Primary Service (Handle 0x0073)
/org/bluez/hci0/dev_20_C3_8F_BD_93_40/service000c
0000180a-0000-1000-8000-00805f9b34fb
Device Information
Agent unregistered
[DEL] Controller B8:27:EB:1B:C4:00 marcophone [default]
Waiting to connect to bluetoothd...con
日志：
pi@marcophone:~$ cat /var/log/syslog | grep bluetooth -a
Jan 27 18:39:40 marcophone bluetoothd[1048]: Bluetooth daemon 5.52
Jan 27 18:39:40 marcophone bluetoothd[1048]: Starting SDP server
Jan 27 18:39:40 marcophone systemd[1]: Started Raspberry Pi bluetooth helper.
Jan 27 18:39:40 marcophone bluetoothd[1048]: Bluetooth management interface 1.14 initialized
Jan 27 18:39:40 marcophone bluetoothd[1048]: Endpoint registered: sender=:1.21 path=/A2DP/SBC/Source/1
Jan 27 18:39:40 marcophone bluetoothd[1048]: Failed to set privacy: Rejected (0x0b)
Jan 27 18:41:07 marcophone bluetoothd[1048]: No cache for 20:C3:8F:BD:93:40
Jan 27 18:41:12 marcophone bluetoothd[1048]: Protocol Mode characteristic read failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: Report Map read failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: Read External Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:13 marcophone bluetoothd[1048]: HID Information read failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Protocol Mode characteristic read failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Report Map read failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Read External Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:41:24 marcophone bluetoothd[1048]: Error storing included service - can't find it
Jan 27 18:41:24 marcophone systemd[1]: bluetooth.service: Main process exited, code=killed, status=11/SEGV
Jan 27 18:41:24 marcophone systemd[1]: bluetooth.service: Unit entered failed state.
Jan 27 18:41:24 marcophone systemd[1]: bluetooth.service: Failed with result 'signal'.
Jan 27 18:43:07 marcophone bluetoothd[356]: Bluetooth daemon 5.52
Jan 27 18:43:07 marcophone bluetoothd[356]: Starting SDP server
Jan 27 18:43:08 marcophone systemd[1]: Started Raspberry Pi bluetooth helper.
Jan 27 18:43:08 marcophone bluetoothd[356]: Bluetooth management interface 1.14 initialized
Jan 27 18:43:08 marcophone bluetoothd[356]: Endpoint registered: sender=:1.5 path=/A2DP/SBC/Source/1
Jan 27 18:43:08 marcophone bluetoothd[356]: Failed to set privacy: Rejected (0x0b)
Jan 27 18:45:11 marcophone bluetoothd[356]: No cache for 20:C3:8F:BD:93:40
Jan 27 18:45:11 marcophone bluetoothd[356]: BATT attribute not found
Jan 27 18:45:11 marcophone bluetoothd[356]: batt-profile profile accept failed for 20:C3:8F:BD:93:40
Jan 27 18:45:11 marcophone bluetoothd[356]: GAP attribute not found
Jan 27 18:45:11 marcophone bluetoothd[356]: gap-profile profile accept failed for 20:C3:8F:BD:93:40
Jan 27 18:45:11 marcophone bluetoothd[356]: input-hog profile accept failed for 20:C3:8F:BD:93:40
Jan 27 18:45:14 marcophone bluetoothd[356]: HID Information read failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Protocol Mode characteristic read failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Report Map read failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Read External Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:14 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:17 marcophone bluetoothd[356]: HID Information read failed: Request attribute has encountered an unlikely error
Jan 27 18:45:17 marcophone bluetoothd[356]: Protocol Mode characteristic read failed: Request attribute has encountered an unlikely error
Jan 27 18:45:17 marcophone bluetoothd[356]: Report Map read failed: Request attribute has encountered an unlikely error
Jan 27 18:45:17 marcophone bluetoothd[356]: Read External Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:17 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:18 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:18 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:18 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:18 marcophone bluetoothd[356]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:45:18 marcophone bluetoothd[356]: Error storing included service - can't find it
Jan 27 18:45:18 marcophone systemd[1]: bluetooth.service: Main process exited, code=killed, status=11/SEGV
Jan 27 18:45:18 marcophone systemd[1]: bluetooth.service: Unit entered failed state.
Jan 27 18:45:18 marcophone systemd[1]: bluetooth.service: Failed with result 'signal'.
Jan 27 18:54:00 marcophone bluetoothd[358]: Bluetooth daemon 5.52
Jan 27 18:54:00 marcophone bluetoothd[358]: Starting SDP server
Jan 27 18:54:00 marcophone systemd[1]: Started Raspberry Pi bluetooth helper.
Jan 27 18:54:00 marcophone bluetoothd[358]: Bluetooth management interface 1.14 initialized
Jan 27 18:54:01 marcophone bluetoothd[358]: Endpoint registered: sender=:1.5 path=/A2DP/SBC/Source/1
Jan 27 18:54:01 marcophone bluetoothd[358]: Failed to set privacy: Rejected (0x0b)
Jan 27 18:55:30 marcophone bluetoothd[358]: No cache for 20:C3:8F:BD:93:40
Jan 27 18:55:30 marcophone bluetoothd[358]: BATT attribute not found
Jan 27 18:55:30 marcophone bluetoothd[358]: batt-profile profile accept failed for 20:C3:8F:BD:93:40
Jan 27 18:55:30 marcophone bluetoothd[358]: GAP attribute not found
Jan 27 18:55:31 marcophone bluetoothd[358]: gap-profile profile accept failed for 20:C3:8F:BD:93:40
Jan 27 18:55:31 marcophone bluetoothd[358]: input-hog profile accept failed for 20:C3:8F:BD:93:40
Jan 27 18:55:36 marcophone bluetoothd[358]: Protocol Mode characteristic read failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: Report Map read failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: Read External Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:36 marcophone bluetoothd[358]: HID Information read failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Protocol Mode characteristic read failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Report Map read failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Read External Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:47 marcophone bluetoothd[358]: Read Report Reference descriptor failed: Request attribute has encountered an unlikely error
Jan 27 18:55:48 marcophone bluetoothd[358]: Error storing included service - can't find it
Jan 27 18:55:48 marcophone systemd[1]: bluetooth.service: Main process exited, code=killed, status=11/SEGV
Jan 27 18:55:48 marcophone systemd[1]: bluetooth.service: Unit entered failed state.
Jan 27 18:55:48 marcophone systemd[1]: bluetooth.service: Failed with result 'signal'.
Hciconfig
pi@marcophone:~$ hciconfig -a
hci0: Type: Primary Bus: UART
BD Address: B8:27:EB:1B:C4:00 ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING
RX bytes:2850 acl:94 sco:0 events:117 errors:0
TX bytes:3820 acl:92 sco:0 commands:62 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
Name: 'marcophone'
Class: 0x480000
Service Classes: Capturing, Telephony
Device Class: Miscellaneous,
HCI Version: 4.1 (0x7) Revision: 0x168
LMP Version: 4.1 (0x7) Subversion: 0x2209
Manufacturer: Broadcom Corporation (15)
版本：
pi@marcophone:~$ sudo bluetoothctl -v
sudo: Hostname marcophone kann nicht aufgelöst werden
bluetoothctl: 5.52
pi@marcophone:~$
[我也应该在这里看到一个条目：/dev/input/event*，但是只有/dev/input/mice。
我知道我在bluez 5.50中可以使用此功能，因此在bluez 5.52中可能是一个问题。
进行研究时，我确实在/lib/systemd/system/bluetooth.service中添加了以下三个选项：
ExecStart=/usr/libexec/bluetooth/bluetoothd --compat --noplugin=sap -E
我让它在另一台机器上工作。但是，该机器运行的是raspbian buster（4.19.97+＃1294 Thu Jan 30 13:10:54 GMT 2020 armv6l GNU / Linux）。
我在与遥控器连接和配对时遇到了一些麻烦，所以我做了以下工作，终于使它工作了：
更新系统
sudo apt update && sudo apt upgrade
更新到最新的bluez堆栈
sudo apt-get remove bluez
date && sudo apt-get update && sudo apt-get install libdbus-1-dev libglib2.0-dev libudev-dev libical-dev libreadline-dev -y &&
date && wget www.kernel.org/pub/linux/bluetooth/bluez-5.52.tar.xz && tar xvf bluez-5.52.tar.xz &&
date && cd bluez-5.52 && ./configure --prefix=/usr --mandir=/usr/share/man --sysconfdir=/etc --localstatedir=/var --enable-experimental && make -j4 && sudo make install && date && sudo reboot
现在如下更新服务ExecStart的/lib/systemd/system/bluetooth.service部分：
ExecStart=/usr/lib/bluetooth/bluetoothd --compat --noplugin=sap -E
也更新/etc/bluetooth/main.conf并在Privacy = off部分中设置[General]。