我是意大利 Xubuntu 用户，在使用联想 Ideapad 100-14iby 时遇到了问题。
问题——>蓝牙似乎可以工作，但找不到设备
我认为问题出在网卡 RTL8723BE 上。关于这个，我发现github.io 上的这篇文章提供了一个修复方法（详见下文），但蓝牙仍然无法工作。
我将向您展示一些终端命令，以便更好地了解情况。
lsusb：
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 004: ID 04f2:b49f Chicony Electronics Co., Ltd Bluetooth Radio
Bus 002 Device 003: ID 174f:1169 Syntek Lenovo EasyCamera
Bus 002 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
dmesg | grep Blue：
[ 4.431236] usb 2-4: Product: Bluetooth Radio
[ 14.771946] Bluetooth: Core ver 2.22
[ 14.771982] Bluetooth: HCI device and connection manager initialized
[ 14.771988] Bluetooth: HCI socket layer initialized
[ 14.771992] Bluetooth: L2CAP socket layer initialized
[ 14.771999] Bluetooth: SCO socket layer initialized
[ 26.075947] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 26.075949] Bluetooth: BNEP filters: protocol multicast
[ 26.075956] Bluetooth: BNEP socket layer initialized
[ 42.875183] Bluetooth: RFCOMM TTY layer initialized
[ 42.875197] Bluetooth: RFCOMM socket layer initialized
[ 42.875210] Bluetooth: RFCOMM ver 1.11
hciconfig -a
hci0: Type: Primary Bus: USB
BD Address: 4C:BB:58:C0:6A:BA ACL MTU: 820:8 SCO MTU: 255:16
UP RUNNING PSCAN ISCAN
RX bytes:3140 acl:0 sco:0 events:218 errors:0
TX bytes:13203 acl:0 sco:0 commands:217 errors:0
Features: 0xff 0xff 0xff 0xfe 0xdb 0xff 0x7b 0x87
Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3
Link policy: RSWITCH HOLD SNIFF PARK
Link mode: SLAVE ACCEPT
Name: 'lenovone'
Class: 0x1c010c
Service Classes: Rendering, Capturing, Object Transfer
Device Class: Computer, Laptop
HCI Version: 4.0 (0x6) Revision: 0xb
LMP Version: 4.0 (0x6) Subversion: 0x8723
Manufacturer: Realtek Semiconductor Corporation (93)
dpkg -l | grep blue：
ii blueman 2.1.2-1 amd64 Graphical bluetooth manager
ii bluetooth 5.53-0ubuntu3 all Bluetooth support
ii bluez 5.53-0ubuntu3 amd64 Bluetooth tools and daemons
ii bluez-cups 5.53-0ubuntu3 amd64 Bluetooth printer driver for CUPS
ii bluez-obexd 5.53-0ubuntu3 amd64 bluez obex daemon
ii bluez-tools 2.0~20170911.0.7cb788c-2build1 amd64 Set of tools to manage Bluetooth devices for linux
ii libbluetooth3:amd64 5.53-0ubuntu3 amd64 Library to use the BlueZ Linux Bluetooth stack
ii pulseaudio-module-bluetooth 1:13.99.1-1ubuntu3.6 amd64 Bluetooth module for PulseAudio sound server
rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
3: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
dmesg |grep usb
[ 0.650107] usbcore: registered new interface driver usbfs
[ 0.650125] usbcore: registered new interface driver hub
[ 0.650159] usbcore: registered new device driver usb
[ 2.966164] pci 0000:00:1d.0: quirk_usb_early_handoff+0x0/0x662 took 1952839 usecs
[ 3.362271] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 3.362275] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.362277] usb usb1: Product: EHCI Host Controller
[ 3.362280] usb usb1: Manufacturer: Linux 5.4.0-47-generic ehci_hcd
[ 3.362282] usb usb1: SerialNumber: 0000:00:1d.0
[ 3.364813] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.04
[ 3.364817] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 3.364819] usb usb2: Product: xHCI Host Controller
usb-devices：
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 8
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev=05.04
S: Manufacturer=Linux 5.4.0-47-generic ehci_hcd
S: Product=EHCI Host Controller
S: SerialNumber=0000:00:1d.0
C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#=0x0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=480 MxCh= 6
D: Ver= 2.00 Cls=09(hub ) Sub=00 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=1d6b ProdID=0002 Rev=05.04
dmesg | grep hci：
[ 3.342725] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 3.342734] ehci-pci: EHCI PCI platform driver
[ 3.343031] ehci-pci 0000:00:1d.0: EHCI Host Controller
[ 3.343043] ehci-pci 0000:00:1d.0: new USB bus registered, assigned bus number 1
[ 3.343061] ehci-pci 0000:00:1d.0: debug port 2
[ 3.346989] ehci-pci 0000:00:1d.0: cache line size of 64 is not supported
[ 3.347016] ehci-pci 0000:00:1d.0: irq 23, io mem 0x90915000
[ 3.361719] ehci-pci 0000:00:1d.0: USB 2.0 started, EHCI 1.00
[ 3.361977] usb usb1: Manufacturer: Linux 5.4.0-47-generic ehci_hcd
[ 3.362786] ehci-platform: EHCI generic platform driver
[ 3.362817] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 3.362824] ohci-pci: OHCI PCI platform driver
lsmod | grep btusb：
btusb 57344 0
btrtl 24576 1 btusb
btbcm 16384 1 btusb
btintel 24576 1 btusb
bluetooth 581632 41 btrtl,btintel,btbcm,bnep,btusb,rfcomm
lsmod：
Module Size Used by
rfcomm 81920 16
ccm 20480 3
cmac 16384 4
algif_hash 16384 1
algif_skcipher 16384 1
af_alg 24576 6 algif_hash,algif_skcipher
bnep 24576 2
nls_iso8859_1 16384 1
intel_rapl_msr 20480 0
intel_rapl_common 24576 1 intel_rapl_msr
intel_soc_dts_thermal 20480 0
intel_soc_dts_iosf 20480 1 intel_soc_dts_thermal
intel_powerclamp 20480 0
coretemp 20480 0
kvm 663552 0
snd_hda_codec_hdmi 61440 1
snd_hda_codec_realtek 126976 1
punit_atom_debug 16384 0
snd_hda_codec_generic 81920 1 snd_hda_codec_realtek
ledtrig_audio 16384 2 snd_hda_codec_generic,snd_hda_codec_realtek
crct10dif_pclmul 16384 1
ghash_clmulni_intel 16384 0
uvcvideo 98304 0
cryptd 24576 1 ghash_clmulni_intel
intel_cstate 20480 0
mei_hdcp 24576 0
videobuf2_vmalloc 20480 1 uvcvideo
videobuf2_memops 20480 1 videobuf2_vmalloc
videobuf2_v4l2 24576 1 uvcvideo
videobuf2_common 49152 2 videobuf2_v4l2,uvcvideo
videodev 225280 3 videobuf2_v4l2,uvcvideo,videobuf2_common
rtl8723be 102400 0
snd_hda_intel 53248 3
snd_intel_dspcfg 24576 1 snd_hda_intel
btcoexist 155648 1 rtl8723be
mc 53248 4 videodev,videobuf2_v4l2,uvcvideo,videobuf2_common
snd_hda_codec 135168 4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
btusb 57344 0
rtl8723_common 24576 1 rtl8723be
rtl_pci 28672 1 rtl8723be
btrtl 24576 1 btusb
rtlwifi 90112 4 rtl_pci,rtl8723be,btcoexist,rtl8723_common
btbcm 16384 1 btusb
mac80211 843776 3 rtl_pci,rtl8723be,rtlwifi
btintel 24576 1 btusb
snd_hda_core 90112 5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
bluetooth 581632 41 btrtl,btintel,btbcm,bnep,btusb,rfcomm
snd_hwdep 20480 1 snd_hda_codec
i915 1986560 5
ecdh_generic 16384 2 bluetooth
ecc 28672 1 ecdh_generic
cfg80211 704512 2 rtlwifi,mac80211
snd_pcm 106496 4 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
input_leds 16384 0
joydev 24576 0
drm_kms_helper 184320 1 i915
serio_raw 20480 0
libarc4 16384 1 mac80211
snd_seq_midi 20480 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 36864 1 snd_seq_midi
wmi_bmof 16384 0
rtsx_pci_ms 24576 0
memstick 20480 1 rtsx_pci_ms
snd_seq 69632 2 snd_seq_midi,snd_seq_midi_event
i2c_algo_bit 16384 1 i915
snd_seq_device 16384 3 snd_seq,snd_seq_midi,snd_rawmidi
fb_sys_fops 16384 1 drm_kms_helper
syscopyarea 16384 1 drm_kms_helper
snd_timer 36864 2 snd_seq,snd_pcm
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
ideapad_laptop 20480 0
sparse_keymap 16384 1 ideapad_laptop
snd 90112 17 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
soundcore 16384 1 snd
mei_txe 28672 1
mei 106496 3 mei_hdcp,mei_txe
mac_hid 16384 0
sch_fq_codel 20480 6
parport_pc 40960 0
ppdev 24576 0
lp 20480 0
parport 53248 3 parport_pc,lp,ppdev
drm 491520 5 drm_kms_helper,i915
ip_tables 32768 0
x_tables 40960 1 ip_tables
autofs4 45056 2
hid_generic 16384 0
usbhid 57344 0
hid 131072 2 usbhid,hid_generic
rtsx_pci_sdmmc 28672 0
psmouse 155648 0
r8169 90112 0
crc32_pclmul 16384 0
i2c_i801 32768 0
realtek 24576 1
lpc_ich 24576 0
rtsx_pci 73728 2 rtsx_pci_sdmmc,rtsx_pci_ms
ahci 40960 2
libahci 32768 1 ahci
wmi 32768 2 wmi_bmof,ideapad_laptop
video 49152 2 ideapad_laptop,i915
lspci：
00:00.0 Host bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series SoC Transaction Register (rev 0e)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Graphics & Display (rev 0e)
00:13.0 SATA controller: Intel Corporation Atom Processor E3800 Series SATA AHCI Controller (rev 0e)
00:14.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx, Celeron N2000 Series USB xHCI (rev 0e)
00:1a.0 Encryption controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Trusted Execution Engine (rev 0e)
00:1b.0 Audio device: Intel Corporation Atom Processor Z36xxx/Z37xxx Series High Definition Audio Controller (rev 0e)
00:1c.0 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 1 (rev 0e)
00:1c.1 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 2 (rev 0e)
00:1c.2 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 3 (rev 0e)
00:1c.3 PCI bridge: Intel Corporation Atom Processor E3800 Series PCI Express Root Port 4 (rev 0e)
00:1d.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series USB EHCI (rev 0e)
00:1f.0 ISA bridge: Intel Corporation Atom Processor Z36xxx/Z37xxx Series Power Control Unit (rev 0e)
00:1f.3 SMBus: Intel Corporation Atom Processor E3800 Series SMBus Controller (rev 0e)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 0a)
04:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
这些是修复提供的步骤我之前提到的帖子：
步骤 1 --> 修复 WiFi
在 /etc/modprobe.d 中创建文件 rtl8723be.conf
cat /etc/modprobe.d/rtl8723be.conf
options rtl8723be ant_sel=2
步骤 2——> 修复蓝牙
我确保 TLP 已安装
获得 ID 蓝牙命令-->lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 005: ID 04f2:b49f Chicony Electronics Co., Ltd Bluetooth Radio
Bus 002 Device 004: ID 174f:1169 Syntek Lenovo EasyCamera
Bus 002 Device 003: ID 1a2c:0e24 China Resource Semico Co., Ltd USB Keyboard
Bus 002 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
ID 是 -->04f2:b49f
修改tlp.conf我的 casa 中的文件，位于/etc
更改 USB_BLACKLIST=“ID 蓝牙卡”
毕竟这个蓝牙不起作用。
我还可以尝试什么？
谢谢
-----------2020 年 9 月 27 日更新-------------
回复 Jeremy31
sudo awk -vRS= '/b49f/{print $0,"\n"}' /sys/kernel/debug/usb/devices :
T: Bus=02 Lev=01 Prnt=01 Port=03 Cnt=04 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 2.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=04f2 ProdID=b49f Rev= 2.00
S: Manufacturer=Realtek
S: Product=Bluetooth Radio
S: SerialNumber=00e04c000001
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=1ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
dmesg | egrep -i 'blue|firm'; mokutil --sb-state:
[ 0.080805] Spectre V2 : Enabling Restricted Speculation for firmware calls
[ 0.118381] ACPI: [Firmware Bug]: BIOS _OSI(Linux) query ignored
[ 0.357886] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge
[ 3.306565] [Firmware Bug]: No valid trip found
[ 4.705027] usb 2-4: Product: Bluetooth Radio
[ 14.547360] Bluetooth: Core ver 2.22
[ 14.547402] Bluetooth: HCI device and connection manager initialized
[ 14.547409] Bluetooth: HCI socket layer initialized
[ 14.547412] Bluetooth: L2CAP socket layer initialized
[ 14.547419] Bluetooth: SCO socket layer initialized
[ 15.581870] rtl8723be: Using firmware rtlwifi/rtl8723befw_36.bin
[ 27.285225] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 27.285228] Bluetooth: BNEP filters: protocol multicast
[ 27.285236] Bluetooth: BNEP socket layer initialized
[ 45.792935] Bluetooth: RFCOMM TTY layer initialized
[ 45.792948] Bluetooth: RFCOMM socket layer initialized
[ 45.792968] Bluetooth: RFCOMM ver 1.11
EFI variables are not supported on this system
`
modinfo btusb :
filename: /lib/modules/5.4.0-48-generic/kernel/drivers/bluetooth/btusb.ko
license: GPL
version: 0.8
description: Generic Bluetooth USB driver ver 0.8
author: Marcel Holtmann <[email protected]>
firmware: mediatek/mt7668pr2h.bin
firmware: mediatek/mt7663pr2h.bin
srcversion: 808BE229E66F97547A76866
alias: usb:v8087p0A5Ad*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0930p*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v413Cp*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v13D3p*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v050Dp*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v0B05p*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v0A5Cp*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v04CAp*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v0489p*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v0BB4p*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v105Bp*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v19FFp0239d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v413Cp8197d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0C10p0000d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0BDBp1002d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v044Ep3002d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v044Ep3001d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v04BFp030Ad*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v057Cp3800d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp8281d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp821Ad*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp821Fd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp821Bd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp8218d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp8215d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp8213d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0A5Cp21E1d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v0E8Dp763Fd*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v05ACp*d*dc*dsc*dp*icFFisc01ip01in*
alias: usb:v*p*d*dc*dsc*dp*icE0isc01ip01in*
alias: usb:v*p*d*dcE0dsc01dp04ic*isc*ip*in*
alias: usb:v*p*d*dcE0dsc01dp01ic*isc*ip*in*
alias: of:N*T*Cusb4ca,301aC*
alias: of:N*T*Cusb4ca,301a
alias: of:N*T*Cusbcf3,e300C*
alias: of:N*T*Cusbcf3,e300
alias: of:N*T*Cusb1286,204eC*
alias: of:N*T*Cusb1286,204e
depends: btrtl,btbcm,bluetooth,btintel
retpoline: Y
intree: Y
name: btusb
vermagic: 5.4.0-48-generic SMP mod_unload
sig_id: PKCS#7
signer: Build time autogenerated kernel key
sig_key: 69:0F:B2:8C:24:82:6C:28:AB:28:F7:D2:E5:B8:D0:0B:2C:EF:1F:87
sig_hashalgo: sha512
signature: 52:84:08:D7:E6:AF:FF:E3:97:A7:E1:F6:E3:EB:D4:34:EB:59:B4:2D:
94:65:55:E8:CB:EC:40:EE:1A:7E:0C:7A:EC:F3:96:DB:E2:39:DD:02:
27:60:02:0A:0E:AA:2F:46:94:35:9D:01:8F:7B:14:62:C2:BC:4B:21:
42:73:0F:D9:78:86:F1:BC:3D:34:B9:6C:41:E5:06:93:A0:88:74:DB:
CD:0A:14:F3:5E:71:33:F3:92:64:61:15:6F:A6:B7:41:D5:38:57:E2:
20:EF:8C:90:A2:57:38:FE:54:10:44:9C:3E:B2:4D:B2:95:B8:8F:AF:
63:BC:27:BD:DC:94:A8:BF:32:94:02:5B:F8:A9:11:2B:8C:CD:C1:BE:
D4:2B:EE:8B:34:D5:2E:EA:9E:2F:2A:F3:42:66:5E:EF:8A:6F:86:5F:
B7:1C:C3:C8:CE:0C:BE:F0:45:6D:0B:57:D2:1B:B3:BA:19:72:F1:78:
02:B2:AB:97:9B:0A:27:36:15:20:26:AA:04:FA:58:45:C3:71:44:02:
62:38:F4:81:67:F0:F3:8B:CF:0D:0F:1C:2C:4C:9E:AC:A4:E9:12:A6:
8B:50:CB:1A:A0:C3:EA:34:F4:56:AF:EC:1D:A5:D0:78:1D:95:15:13:
EE:C8:96:93:33:38:00:8B:E8:7D:8A:FB:50:19:67:2A:8B:CA:88:6C:
B8:2A:1D:FA:FB:B5:3B:F6:AC:D3:CD:FC:E5:28:64:CF:DA:60:EC:FB:
E3:BC:BD:70:2A:DF:30:42:C3:46:29:3F:F3:40:55:E0:E5:34:78:62:
46:4A:4D:8D:71:56:32:7F:FF:40:BF:F0:2B:46:98:DB:B3:41:1D:43:
15:15:1B:6D:36:33:B0:BF:D7:B4:12:79:2F:8E:2F:38:FF:39:BD:E1:
58:2D:48:45:02:3C:3B:18:EA:97:17:CB:82:5F:14:96:D5:9F:55:66:
E5:E3:B2:E2:BF:76:BC:DA:FF:4E:62:13:BB:9D:BD:37:8B:EF:D6:26:
B7:66:90:8C:F8:E7:30:A4:2A:2F:3B:32:75:95:74:DF:BA:42:88:49:
C8:3E:6B:98:C1:3A:3D:30:95:4C:D7:37:D0:9F:32:07:06:87:0F:55:
DD:73:29:60:6E:AD:71:37:4B:88:A7:F7:B0:F2:C8:E1:FE:7B:5E:E8:
13:EB:57:E2:A3:AA:43:F9:46:73:76:69:66:71:A7:AE:C5:1D:21:F4:
B6:05:8B:10:F9:47:CA:52:41:BF:D7:D8:68:8D:24:B2:47:2A:AF:C4:
97:D7:5D:E0:77:A8:FC:E3:F9:86:94:9E:EF:EB:F3:B5:74:4C:CB:DA:
2F:4B:4D:23:D1:94:B4:A6:71:80:45:E3
parm: disable_scofix:Disable fixup of wrong SCO buffer size (bool)
parm: force_scofix:Force fixup of wrong SCO buffers size (bool)
parm: enable_autosuspend:Enable USB autosuspend by default (bool)
parm: reset:Send HCI reset command on initialization (bool)
答案1
如果计算机使用 UEFI，请禁用安全启动。然后在终端中执行
sudo apt install git dkms
git clone https://github.com/jeremyb31/bluetooth-5.4.git
cd bluetooth-5.4
make
sudo cp btusb.ko /lib/modules/$(uname -r)/kernel/drivers/bluetooth/btusb.ko
重启直到我能弄清楚内核更新后 dkms 出了什么问题，你需要
cd bluetooth-5.4
make clean
make
sudo cp btusb.ko /lib/modules/$(uname -r)/kernel/drivers/bluetooth/btusb.ko重启