我已在 HP X360 Spectre 上安装了 Linux Debian 11.5。当我检查蓝牙时，我发现它总是呈灰色并显示一条消息：No Bluetooth found. plug in a dongle to use Bluetooth"。
如果我在终端中执行此操作：
sudo lsmod | grep blue
我什么也没得到（空输出）。但是，在搞乱了我在互联网上找到的命令（如 bootctl、bluetoothctl、lspci）之后，我得到了：
sudo lsmod | grep blue
#Output:
bluetooth 753664 11 btrtl,btintel,btbcm,bnep,btusb
ecdh_generic 16384 1 bluetooth
libaes 16384 2 bluetooth,aesni_intel
rfkill 32768 9 hp_wmi,bluetooth,cfg80211
crc16 16384 2 bluetooth,ext4
那么我的蓝牙驱动程序是什么？以及如何安装它？
在 Windows 10、11 上，蓝牙工作没有任何问题，但在 Ubuntu、Debian、Fedora 等 Linux 系统上，它们也有同样的问题。
sudo rfkill
ID TYPE DEVICE SOFT HARD
0 wlan phy0 unblocked unblocked
rfkill不显示蓝牙！
sudo lspci | grep blue
#empty output
sudo systemctl start bluetooth
sudo systemctl enable bluetooth
Synchronizing state of bluetooth.service with SysV service script with /lib/systemd/systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable bluetooth
sudo bluetoothctl
Agent registered
[bluetooth]# show
No default controller available
[bluetooth]#
sudo systemctl status bluetooth.service
● bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled) Active: active (running) since Mon 2022-11-14 19:15:21 CET; 21min ago Docs: man:bluetoothd(8) Main PID: 3977 (bluetoothd) Status: "Running" Tasks: 1 (limit: 18814) Memory: 1.3M CPU: 46ms CGroup: /system.slice/bluetooth.service └─3977 /usr/libexec/bluetooth/bluetoothd
Nov 14 19:15:21 debian systemd[1]: Starting Bluetooth service...
Nov 14 19:15:21 debian bluetoothd[3977]: Bluetooth daemon 5.55
Nov 14 19:15:21 debian systemd[1]: Started Bluetooth service.
Nov 14 19:15:21 debian bluetoothd[3977]: Starting SDP server
Nov 14 19:15:21 debian bluetoothd[3977]: Bluetooth management interface 1.18 initialized
sudo lsmod | grep btusb
btusb 65536 0
btrtl 28672 1 btusb
btbcm 20480 1 btusb
btintel 32768 1 btusb
bluetooth 753664 11 btrtl,btintel,btbcm,bnep,btusb
usbcore 331776 5 xhci_hcd,usbhid,uvcvideo,btusb,xhci_pci
sudo dmesg | egrep -i 'blue|firm'
[sudo] password for raindrop7:
[ 1.501334] i915 0000:00:02.0: firmware: direct-loading firmware i915/kbl_dmc_ver1_04.bin
[ 1.501920] i915 0000:00:02.0: [drm] Finished loading DMC firmware i915/kbl_dmc_ver1_04.bin (v1.4)
[ 5.758516] tpm tpm0: [Firmware Bug]: TPM interrupt not working, polling instead
[ 5.875550] platform regulatory.0: firmware: direct-loading firmware regulatory.db
[ 5.875793] platform regulatory.0: firmware: direct-loading firmware regulatory.db.p7s
[ 5.890039] iwlwifi 0000:00:14.3: firmware: direct-loading firmware iwlwifi-QuZ-a0-hr-b0-59.ucode
[ 5.890356] iwlwifi 0000:00:14.3: loaded firmware version 59.601f3a66.0 QuZ-a0-hr-b0-59.ucode op_mode iwlmvm
[ 5.890380] iwlwifi 0000:00:14.3: firmware: failed to load iwl-debug-yoyo.bin (-2)
[ 5.890424] firmware_class: See https://wiki.debian.org/Firmware for information about missing firmware
[ 6.270240] sof-audio-pci 0000:00:1f.3: firmware: direct-loading firmware intel/sof/sof-cml.ri
[ 6.270246] sof-audio-pci 0000:00:1f.3: Firmware info: version 1:7:0-47d07
[ 6.270247] sof-audio-pci 0000:00:1f.3: Firmware: ABI 3:18:1 Kernel ABI 3:17:0
[ 6.361112] sof-audio-pci 0000:00:1f.3: Firmware info: version 1:7:0-47d07
[ 6.361113] sof-audio-pci 0000:00:1f.3: Firmware: ABI 3:18:1 Kernel ABI 3:17:0
[ 6.586224] Bluetooth: Core ver 2.22
[ 6.586255] Bluetooth: HCI device and connection manager initialized
[ 6.586259] Bluetooth: HCI socket layer initialized
[ 6.586261] Bluetooth: L2CAP socket layer initialized
[ 6.586269] Bluetooth: SCO socket layer initialized
[ 6.773627] sof-audio-pci 0000:00:1f.3: firmware: direct-loading firmware intel/sof-tplg/sof-hda-generic-2ch.tplg
[ 8.685217] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 8.685219] Bluetooth: BNEP filters: protocol multicast
[ 8.685222] Bluetooth: BNEP socket layer initialized
因此，我写下了这些输出，以便专家能够理解它们并告诉我该做什么以及应该安装哪个驱动程序。