我正在用更多的调试信息重写这个问题，因为它让我抓狂。在gnome-control-center一次将联想 Thinkpad Trackpoint II 键盘从设备列表中删除后，我无法再与它配对。它要求我输入密钥 PIN，然后按 Enter。我照做了，什么也没发生。键盘闪烁 5 次，这意味着它应该已配对。我的蓝牙没有软块或硬块rfkill list：
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
无线目前处于软阻止状态，因为我读到它可能有帮助后就关闭了 Wi-Fi。
什么都没起作用。这是 的当前缓冲区systemctl status bluetooth：
Sep 02 11:33:00 anonpc bluetoothd[880]: src/profile.c:ext_start_servers() L2CAP server failed for Message Notification: setsockopt(L2CAP_OPTIONS): Invalid argument (22)
Sep 02 11:33:00 anonpc bluetoothd[880]: src/profile.c:ext_start_servers() L2CAP server failed for Message Access: setsockopt(L2CAP_OPTIONS): Invalid argument (22)
Sep 02 11:33:00 anonpc bluetoothd[880]: src/profile.c:ext_start_servers() L2CAP server failed for Phone Book Access: setsockopt(L2CAP_OPTIONS): Invalid argument (22)
Sep 02 11:33:00 anonpc bluetoothd[880]: src/profile.c:ext_start_servers() L2CAP server failed for File Transfer: setsockopt(L2CAP_OPTIONS): Invalid argument (22)
Sep 02 11:33:00 anonpc bluetoothd[880]: src/profile.c:ext_start_servers() L2CAP server failed for Object Push: setsockopt(L2CAP_OPTIONS): Invalid argument (22)
Sep 02 11:33:02 anonpc bluetoothd[880]: src/device.c:load_gatt_db() No cache for D4:E8:60:34:B6:7B
Sep 02 11:35:35 anonpc bluetoothd[880]: src/device.c:load_gatt_db() No cache for D4:E8:60:34:B6:7B
Sep 02 11:35:46 anonpc bluetoothd[880]: profiles/input/hog-lib.c:output_written_cb() Write output report failed: Request attribute has encountered an unlikely error
Sep 02 11:35:46 anonpc bluetoothd[880]: profiles/input/hog-lib.c:output_written_cb() Write output report failed: Request attribute has encountered an unlikely error
Sep 02 11:35:46 anonpc bluetoothd[880]: profiles/input/hog-lib.c:output_written_cb() Write output report failed: Request attribute has encountered an unlikely error
以下是输出sudo dmesg | grep -i bluetooth：
[ 3.918616] usb 1-12: Product: Bluetooth Radio
[ 5.754036] Bluetooth: Core ver 2.22
[ 5.754064] NET: Registered PF_BLUETOOTH protocol family
[ 5.754065] Bluetooth: HCI device and connection manager initialized
[ 5.754070] Bluetooth: HCI socket layer initialized
[ 5.754072] Bluetooth: L2CAP socket layer initialized
[ 5.754076] Bluetooth: SCO socket layer initialized
[ 5.911921] Bluetooth: hci0: RTL: examining hci_ver=08 hci_rev=000c lmp_ver=08 lmp_subver=8821
[ 5.914934] Bluetooth: hci0: RTL: rom_version status=0 version=1
[ 5.914938] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_fw.bin
[ 5.915596] Bluetooth: hci0: RTL: loading rtl_bt/rtl8821c_config.bin
[ 5.915724] Bluetooth: hci0: RTL: cfg_sz 10, total sz 34926
[ 7.073100] Bluetooth: hci0: RTL: fw version 0x75b8f098
[ 7.568173] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 7.568175] Bluetooth: BNEP filters: protocol multicast
[ 7.568178] Bluetooth: BNEP socket layer initialized
[ 7.574580] Bluetooth: MGMT ver 1.22
[ 11.039796] Bluetooth: RFCOMM TTY layer initialized
[ 11.039805] Bluetooth: RFCOMM socket layer initialized
[ 11.039811] Bluetooth: RFCOMM ver 1.11
[ 46.039894] Bluetooth: hci0: unexpected event for opcode 0xfc19
[ 46.040935] Bluetooth: hci0: unexpected event for opcode 0x2016
[ 52.036805] Bluetooth: hci0: unexpected cc 0x0c7c length: 1 < 3
[ 52.051280] Bluetooth: hci0: unexpected SMP command 0x06 from d4:e8:60:34:b6:7b
[ 52.068280] Bluetooth: hci0: unexpected SMP command 0x07 from d4:e8:60:34:b6:7b
[ 52.068287] Bluetooth: hci0: unexpected SMP command 0x08 from d4:e8:60:34:b6:7b
[ 52.068289] Bluetooth: hci0: unexpected SMP command 0x09 from d4:e8:60:34:b6:7b
[ 53.986986] lenovo 0005:17EF:60E1.0007: input,hidraw6: BLUETOOTH HID v0.47 Keyboard [TrackPoint Keyboard II] on 38:d5:7a:08:e9:62
[ 198.586189] Bluetooth: hci0: unexpected event for opcode 0xfc19
[ 198.587192] Bluetooth: hci0: unexpected event for opcode 0x2016
[ 204.557040] Bluetooth: hci0: unexpected cc 0x0c7c length: 1 < 3
[ 204.571299] Bluetooth: hci0: unexpected SMP command 0x06 from d4:e8:60:34:b6:7b
[ 204.603297] Bluetooth: hci0: unexpected SMP command 0x07 from d4:e8:60:34:b6:7b
[ 204.603307] Bluetooth: hci0: unexpected SMP command 0x08 from d4:e8:60:34:b6:7b
[ 204.603309] Bluetooth: hci0: unexpected SMP command 0x09 from d4:e8:60:34:b6:7b
[ 206.461989] lenovo 0005:17EF:60E1.0008: input,hidraw6: BLUETOOTH HID v0.47 Keyboard [TrackPoint Keyboard II] on 38:d5:7a:08:e9:62
可以看到，我的键盘的 MAC 地址是d4:e8:60:34:b6:7b。我的 PC 也叫anonpc。当我运行 时gnome-control-center -v，我经常会收到以下消息：
Bluetooth: DEBUG: Not interested in device 'anonpc'
固件中是否有东西阻止我再次配对？我想将键盘恢复出厂设置，以防固件中出现问题，但似乎没有办法
Ubuntu 22.04.3 LTS x86_64 / GNOME 42.9 / 6.2.0-1011-lowlatency 内核