我所说的“有时会滞后”是指它可以正常工作一分钟，然后断断续续几分钟，再次正常工作一分钟，然后断断续续等等。我已经尝试了很多已经给出的解决方案，例如编辑以添加/var/lib/bluetooth/mac-pc/mac-mouse/info连接参数以及另一个编辑单独文件的类似解决方案。
我还运行了一些诊断程序，信息如下。
我觉得最奇怪的是，当我运行蓝牙管理器并右键单击设置鼠标时，它会运行良好几秒钟，然后再次变得迟缓。还有另一种方法可以复制这种情况，即在终端中使用 hciconfig scan 命令使其运行顺畅几秒钟。
$ dmesg | grep -I blue
[ 30.120183] Bluetooth: Core ver 2.22
[ 30.120198] Bluetooth: HCI device and connection manager initialized
[ 30.120201] Bluetooth: HCI socket layer initialized
[ 30.120202] Bluetooth: L2CAP socket layer initialized
[ 30.120204] Bluetooth: SCO socket layer initialized
[ 31.395146] Bluetooth: hci0: BCM: chip id 70
[ 31.396141] Bluetooth: hci0: BCM: features 0x06
[ 31.412156] Bluetooth: hci0: dell-Inspiron-3543
[ 31.416150] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0341
[ 34.019178] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0341
[ 34.035256] Bluetooth: hci0: BCM43142A0 Generic USB Class 2 NonUHE @ 20 MHz
[ 39.041570] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 39.041572] Bluetooth: BNEP filters: protocol multicast
[ 39.041575] Bluetooth: BNEP socket layer initialized
[ 52.617208] Bluetooth: RFCOMM TTY layer initialized
[ 52.617213] Bluetooth: RFCOMM socket layer initialized
[ 52.617217] Bluetooth: RFCOMM ver 1.11
[ 76.147097] Bluetooth: HIDP (Human Interface Emulation) ver 1.2
[ 76.147106] Bluetooth: HIDP socket layer initialized
[ 76.150103] input: Bluetooth Mouse M336/M337/M535 Mouse as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0002/input/input21
[ 76.150611] input: Bluetooth Mouse M336/M337/M535 Consumer Control as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0002/input/input22
[ 76.150912] input: Bluetooth Mouse M336/M337/M535 Keyboard as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0002/input/input25
[ 76.151558] hid-generic 0005:046D:B016.0002: input,hidraw1: BLUETOOTH HID v12.03 Mouse [Bluetooth Mouse M336/M337/M535] on ac:d1:b8:c3:50:48
[ 1862.205868] input: Bluetooth Mouse M336/M337/M535 Mouse as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0003/input/input26
[ 1862.206117] input: Bluetooth Mouse M336/M337/M535 Consumer Control as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0003/input/input27
[ 1862.206250] input: Bluetooth Mouse M336/M337/M535 Keyboard as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0003/input/input30
[ 1862.206567] hid-generic 0005:046D:B016.0003: input,hidraw1: BLUETOOTH HID v12.03 Mouse [Bluetooth Mouse M336/M337/M535] on ac:d1:b8:c3:50:48
[ 1983.198141] input: Bluetooth Mouse M336/M337/M535 Mouse as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0004/input/input31
[ 1983.198493] input: Bluetooth Mouse M336/M337/M535 Consumer Control as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0004/input/input32
[ 1983.198698] input: Bluetooth Mouse M336/M337/M535 Keyboard as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0004/input/input35
[ 1983.199155] hid-generic 0005:046D:B016.0004: input,hidraw1: BLUETOOTH HID v12.03 Mouse [Bluetooth Mouse M336/M337/M535] on ac:d1:b8:c3:50:48
[11971.835681] input: Bluetooth Mouse M336/M337/M535 Mouse as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0005/input/input36
[11971.836087] input: Bluetooth Mouse M336/M337/M535 Consumer Control as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0005/input/input37
[11971.836309] input: Bluetooth Mouse M336/M337/M535 Keyboard as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0005/input/input40
[11971.836838] hid-generic 0005:046D:B016.0005: input,hidraw1: BLUETOOTH HID v12.03 Mouse [Bluetooth Mouse M336/M337/M535] on ac:d1:b8:c3:50:48
[12319.290163] input: Bluetooth Mouse M336/M337/M535 Mouse as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0006/input/input41
[12319.290374] input: Bluetooth Mouse M336/M337/M535 Consumer Control as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0006/input/input42
[12319.290469] input: Bluetooth Mouse M336/M337/M535 Keyboard as /devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.6/1-1.6:1.0/bluetooth/hci0/hci0:11/0005:046D:B016.0006/input/input45
[12319.290724] hid-generic 0005:046D:B016.0006: input,hidraw1: BLUETOOTH HID v12.03 Mouse [Bluetooth Mouse M336/M337/M535] on ac:d1:b8:c3:50:48
$ sudo service bluetooth status
bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2021-03-02 10:40:40 IST; 24min ago
Docs: man:bluetoothd(8)
Main PID: 8765 (bluetoothd)
Status: "Running"
Tasks: 1 (limit: 9385)
Memory: 1.2M
CGroup: /system.slice/bluetooth.service
└─8765 /usr/lib/bluetooth/bluetoothd
Mar 02 10:40:40 dell-Inspiron-3543 systemd[1]: Starting Bluetooth service...
Mar 02 10:40:40 dell-Inspiron-3543 bluetoothd[8765]: Bluetooth daemon 5.53
Mar 02 10:40:40 dell-Inspiron-3543 systemd[1]: Started Bluetooth service.
Mar 02 10:40:40 dell-Inspiron-3543 bluetoothd[8765]: Starting SDP server
Mar 02 10:40:40 dell-Inspiron-3543 bluetoothd[8765]: Bluetooth management interface 1.14 initialized
Mar 02 10:40:40 dell-Inspiron-3543 bluetoothd[8765]: Endpoint registered: sender=:1.34 path=/MediaEndpoint/A2DPSink/sbc
Mar 02 10:40:40 dell-Inspiron-3543 bluetoothd[8765]: Endpoint registered: sender=:1.34 path=/MediaEndpoint/A2DPSource/sbc
$ hciconfig scan
hci0: Type: Primary Bus: USB
BD Address: AC:D1:B8:C3:50:48 ACL MTU: 1021:8 SCO MTU: 64:1
UP RUNNING PSCAN ISCAN
RX bytes:1217978 acl:71784 sco:0 events:6538 errors:0
TX bytes:85561 acl:61 sco:0 commands:5974 errors:0
答案1
通常，当我看到这种情况时，是因为蓝牙设备的电源管理设置太过激进。我最成功的解决方案是通过 禁用蓝牙设备的自动挂起功能btusb.enable_autosuspend。
这是完成的方式：
- 打开终端（如果尚未打开）
- 编辑
grub文件如下root：
笔记：如果您愿意，可以随意使用其他文本编辑器。sudo vi /etc/default/grub - 添加
btusb.enable_autosuspend=0到GRUB_CMDLINE_LINUX_DEFAULT行中。最终结果可能看起来像这样：
笔记：此行中可能包含更多项目，这没问题。您可以在引号之间的任何位置添加新标志，顺序无关紧要。GRUB_CMDLINE_LINUX_DEFAULT="quiet splash btusb.enable_autosuspend=0" - 保存文件
- 更新 Grub：
sudo update-grub - 重启
这将禁用蓝牙无线电的省电模式。如果您不需要使用蓝牙并且希望减少耗电量，只需通过电源开关禁用蓝牙无线电即可。
答案2
我无法自行修复该问题，但我遇到了更多类似的问题，发现有人建议蓝牙使用与 wifi 相同的 2.4Gz 频段，这可能会导致此问题，而且这种方法有效。切换到以太网连接并立即关闭 wifi 可以解决我面临的大量延迟问题。