我有一个 BT 加密狗，可以在装有 Xubuntu 14.04 的 PC 上使用。现在我拥有 Xubuntu 16.04，它不再起作用了。我每年只使用这个加密狗 5 或 6 次，所以我不能 100% 确定它是否在 16.04 上工作。
无论加密狗连接到哪个 USB 端口：问题都是一样的。
加密狗可以在 Windows 7 PC 上使用
下面一些内容，以便您可以理解我的问题。
uname -a
Linux R2D2 4.4.0-31-generic #50-Ubuntu SMP Wed Jul 13 00:07:12 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
sudo 服务蓝牙状态
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
Active: active (running) since sam. 2016-07-16 08:25:45 CEST; 3h 3min ago
Docs: man:bluetoothd(8)
Main PID: 897 (bluetoothd)
Status: "Running"
CGroup: /system.slice/bluetooth.service
└─897 /usr/lib/bluetooth/bluetoothd
juil. 16 08:25:45 R2D2 systemd[1]: Starting Bluetooth service...
juil. 16 08:25:45 R2D2 bluetoothd[897]: Bluetooth daemon 5.37
juil. 16 08:25:45 R2D2 bluetoothd[897]: Starting SDP server
juil. 16 08:25:45 R2D2 bluetoothd[897]: Bluetooth management interface 1.10 initialized
juil. 16 08:25:45 R2D2 systemd[1]: Started Bluetooth service.
sudo hciconfig-a
hci0: Type: BR/EDR Bus: USB
BD Address: 11:11:11:11:11:11 ACL MTU: 672:3 SCO MTU: 48:1
DOWN
RX bytes:2225 acl:0 sco:0 events:75 errors:0
TX bytes:315 acl:0 sco:0 commands:75 errors:0
Features: 0xff 0x3e 0x85 0x38 0x18 0x18 0x00 0x00
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy:
Link mode: SLAVE ACCEPT
sudo hciconfig hci0 启动
Can't init device hci0: Operation not supported (95)
sudo hcitool 扫描
Device is not available: No such device
sudo hcitool inq
Inquiring ...
Inquiry failed.: No such device
sudo hciconfig hci0 重置
Can't init device hci0: Operation not supported (95)
sudo rfkill 列表
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
sudo lsusb
Bus 002 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 002 Device 005: ID 0e5e:6622 Conwise Technology Co., Ltd. CW6622
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 005 Device 002: ID 1a7c:0191 Evoluent VerticalMouse 4
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
我的加密狗是：总线 002 设备 005：ID 0e5e:6622 康威斯科技有限公司 CW6622
sudo lsmod | grep btusb
btusb 45056 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
bluetooth 520192 12 bnep,btbcm,btrtl,btusb,btintel
sudo dmesg |尾巴
[ 5049.928066] usb 2-1.6: new full-speed USB device number 5 using ehci-pci
[ 5050.022000] usb 2-1.6: New USB device found, idVendor=0e5e, idProduct=6622
[ 5050.022006] usb 2-1.6: New USB device strings: Mfr=0, Product=0, SerialNumber=0
sudo tail /var/log/syslog
Jul 16 09:49:48 R2D2 kernel: [ 5049.928066] usb 2-1.6: new full-speed USB device number 5 using ehci-pci
Jul 16 09:49:48 R2D2 kernel: [ 5050.022000] usb 2-1.6: New USB device found, idVendor=0e5e, idProduct=6622
Jul 16 09:49:48 R2D2 kernel: [ 5050.022006] usb 2-1.6: New USB device strings: Mfr=0, Product=0, SerialNumber=0
Jul 16 09:49:48 R2D2 systemd[1]: Starting Load/Save RF Kill Switch Status...
Jul 16 09:49:48 R2D2 systemd-udevd[5159]: Process '/bin/hciconfig hci0 up' failed with exit code 1.
Jul 16 09:49:48 R2D2 systemd[1]: Reached target Bluetooth.
Jul 16 09:49:48 R2D2 systemd[1]: Started Load/Save RF Kill Switch Status.
问题可能出在哪里？
提前致谢。