这个问题似乎已被问过几次，但没有答案，所以我想我会再问一次。
通常我会使用带有加密狗的无线轨迹球（Kensington Expert Wireless Trackball），但今天我把它留在了另一台笔记本电脑上。
所以我想尝试一下蓝牙连接；与加密狗相比，使用蓝牙时速度非常慢/滞后。
蓝牙卡：
adam@adamWork:~$ lspci | grep -i wire
6e:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
DMESG显示：
adam@adamWork:~$ dmesg | grep -i blue
[ 4.695603] Bluetooth: Core ver 2.22
[ 4.695617] Bluetooth: HCI device and connection manager initialized
[ 4.695620] Bluetooth: HCI socket layer initialized
[ 4.695621] Bluetooth: L2CAP socket layer initialized
[ 4.695625] Bluetooth: SCO socket layer initialized
[ 4.820710] Bluetooth: hci0: Bootloader revision 0.0 build 26 week 38 2015
[ 4.821677] Bluetooth: hci0: Device revision is 16
[ 4.821677] Bluetooth: hci0: Secure boot is enabled
[ 4.821678] Bluetooth: hci0: OTP lock is enabled
[ 4.821678] Bluetooth: hci0: API lock is enabled
[ 4.821678] Bluetooth: hci0: Debug lock is disabled
[ 4.821679] Bluetooth: hci0: Minimum firmware build 1 week 10 2014
[ 4.836195] Bluetooth: hci0: Found device firmware: intel/ibt-12-16.sfi
[ 6.166487] Bluetooth: hci0: Waiting for firmware download to complete
[ 6.166640] Bluetooth: hci0: Firmware loaded in 1314684 usecs
[ 6.166669] Bluetooth: hci0: Waiting for device to boot
[ 6.178644] Bluetooth: hci0: Device booted in 11701 usecs
[ 6.239556] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-12-16.ddc
[ 6.242683] Bluetooth: hci0: Applying Intel DDC parameters completed
[ 6.311055] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 6.311056] Bluetooth: BNEP filters: protocol multicast
[ 6.311059] Bluetooth: BNEP socket layer initialized
[ 26.025442] Bluetooth: RFCOMM TTY layer initialized
[ 26.025454] Bluetooth: RFCOMM socket layer initialized
[ 26.025510] Bluetooth: RFCOMM ver 1.11
[ 2882.091751] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 2915.114830] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 2931.129683] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 2946.999706] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 2963.245791] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 2980.138690] Bluetooth: hci0: last event is not cmd complete (0x0f)
[ 2991.927036] hid-generic 0005:047D:8019.0001: input,hidraw0: BLUETOOTH HID v0.01 Mouse [Expert Wireless TB] on 00:28:F8:51:7C:3B
因此，它显示为 hdi（人机接口设备）并在 GUI 工具上显示为鼠标。
有趣的是，滚轮似乎与按钮一样正常工作；只是鼠标移动有些滞后。
这对我来说只是一个小问题，因为当我回到家时，我只需将加密狗移回这台计算机即可；然而似乎其他人也在问同样的问题，但没有得到好的答案。