我的蓝牙 CRS 5.0 加密狗无法在 Linux Ubuntu 20.04 上运行。
细节：
Linux version 5.8.0-50-generic (buildd@lgw01-amd64-030) (gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #56~20.04.1-Ubuntu SMP Mon Apr 12 21:46:35 UTC 2021
dmesg | grep Blue返回：
[ 5.764592] Bluetooth: Core ver 2.22
[ 5.764617] Bluetooth: HCI device and connection manager initialized
[ 5.764620] Bluetooth: HCI socket layer initialized
[ 5.764621] Bluetooth: L2CAP socket layer initialized
[ 5.764623] Bluetooth: SCO socket layer initialized
[ 5.911291] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...
[ 8.639737] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 8.639739] Bluetooth: BNEP filters: protocol multicast
[ 8.639743] Bluetooth: BNEP socket layer initialized
[ 784.333915] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...
[ 845.465865] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...
[ 881.856734] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...
[ 1051.635612] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...
[ 1060.631971] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...
bluetoothctl返回：
Agent registered
[bluetooth]# list
[bluetooth]#
lsmod | grep -i blue返回：
bluetooth 581632 16 btrtl,btintel,btbcm,bnep,btusb
ecdh_generic 16384 1 bluetooth
hcitool dev返回：
Devices:
hciconfig hci0 up返回：
Can't init device hci0: Invalid argument (22)
并同时返回btmon：
Bluetooth monitor ver 5.53
= Note: Linux version 5.8.0-50-generic (x86_64) 0.183374
= Note: Bluetooth subsystem version 2.22 0.183375
= New Index: 00:1A:7D:DA:71:12 (Primary,USB,hci0) [hci0] 0.183376
@ MGMT Open: bluetoothd (privileged) version 1.17 {0x0001} 0.183376
@ MGMT Open: btmon (privileged) version 1.17 {0x0002} 0.183387
@ RAW Open: hciconfig (privileged) version 2.22 {0x0003} 2.733603
= Open Index: 00:1A:7D:DA:71:12 [hci0] 2.800107
= Index Info: 00:1A:7D:DA:71:12 (Cambridge Silicon Radio) [hci0] 2.800123
< HCI Command: Read Local Version Information (0x04|0x0001) plen 0 #1 [hci0] 2.800170
> HCI Event: Command Complete (0x0e) plen 12 #2 [hci0] 2.802164
Read Local Version Information (0x04|0x0001) ncmd 1
Status: Success (0x00)
HCI version: Bluetooth 4.0 (0x06) - Revision 12576 (0x3120)
LMP version: Bluetooth 4.0 (0x06) - Subversion 8891 (0x22bb)
Manufacturer: Cambridge Silicon Radio (10)
< HCI Command: Reset (0x03|0x0003) plen 0 #3 [hci0] 2.802371
> HCI Event: Command Complete (0x0e) plen 4 #4 [hci0] 2.813177
Reset (0x03|0x0003) ncmd 1
Status: Success (0x00)
< HCI Command: Read Local Supported Features (0x04|0x0003) plen 0 #5 [hci0] 2.813299
> HCI Event: Command Complete (0x0e) plen 12 #6 [hci0] 2.816138
Read Local Supported Features (0x04|0x0003) ncmd 1
Status: Success (0x00)
Features: 0xbf 0x3e 0x4d 0xfa 0xdb 0x3d 0x7b 0xc7
3 slot packets
5 slot packets
Encryption
Slot offset
Timing accuracy
Role switch
Sniff mode
Power control requests
Channel quality driven data rate (CQDDR)
SCO link
HV2 packets
HV3 packets
CVSD synchronous data
Power control
Transparent synchronous data
Flow control lag (most significant bit)
Enhanced Data Rate ACL 2 Mbps mode
Enhanced inquiry scan
Interlaced inquiry scan
Interlaced page scan
RSSI with inquiry results
Extended SCO link (EV3 packets)
EV4 packets
EV5 packets
AFH capable slave
AFH classification slave
LE Supported (Controller)
3-slot Enhanced Data Rate ACL packets
5-slot Enhanced Data Rate ACL packets
Pause encryption
AFH capable master
AFH classification master
Enhanced Data Rate eSCO 2 Mbps mode
Extended Inquiry Response
Simultaneous LE and BR/EDR (Controller)
Secure Simple Pairing
Encapsulated PDU
Erroneous Data Reporting
Non-flushable Packet Boundary Flag
Link Supervision Timeout Changed Event
Inquiry TX Power Level
Enhanced Power Control
Extended features
Unknown features (0x4000000000000000)
< HCI Command: Read Local Version Information (0x04|0x0001) plen 0 #7 [hci0] 2.816259
> HCI Event: Command Complete (0x0e) plen 12 #8 [hci0] 2.817971
Read Local Version Information (0x04|0x0001) ncmd 1
Status: Success (0x00)
HCI version: Bluetooth 4.0 (0x06) - Revision 12576 (0x3120)
LMP version: Bluetooth 4.0 (0x06) - Subversion 8891 (0x22bb)
Manufacturer: Cambridge Silicon Radio (10)
< HCI Command: Read BD ADDR (0x04|0x0009) plen 0 #9 [hci0] 2.818052
> HCI Event: Command Complete (0x0e) plen 10 #10 [hci0] 2.819970
Read BD ADDR (0x04|0x0009) ncmd 1
Status: Success (0x00)
Address: 00:1A:7D:DA:71:12 (cyber-blue(HK)Ltd)
< HCI Command: Read Buffer Size (0x04|0x0005) plen 0 #11 [hci0] 2.820100
> HCI Event: Command Complete (0x0e) plen 11 #12 [hci0] 2.821968
Read Buffer Size (0x04|0x0005) ncmd 1
Status: Success (0x00)
ACL MTU: 679 ACL max packet: 8
SCO MTU: 48 SCO max packet: 16
< HCI Command: Read Class of Device (0x03|0x0023) plen 0 #13 [hci0] 2.822051
> HCI Event: Command Complete (0x0e) plen 7 #14 [hci0] 2.824011
Read Class of Device (0x03|0x0023) ncmd 1
Status: Success (0x00)
Class: 0x000000
Major class: Miscellaneous
Minor class: 0x00
< HCI Command: Read Local Name (0x03|0x0014) plen 0 #15 [hci0] 2.824129
> HCI Event: Command Complete (0x0e) plen 252 #16 [hci0] 2.841133
Read Local Name (0x03|0x0014) ncmd 1
Status: Success (0x00)
Name: CSR8510 A10
< HCI Command: Read Voice Setting (0x03|0x0025) plen 0 #17 [hci0] 2.841264
> HCI Event: Command Complete (0x0e) plen 6 #18 [hci0] 2.843026
Read Voice Setting (0x03|0x0025) ncmd 1
Status: Success (0x00)
Setting: 0x0000
Input Coding: Linear
Input Data Format: 1's complement
Input Sample Size: 8-bit
# of bits padding at MSB: 0
Air Coding Format: CVSD
< HCI Command: Read Number of Supported IAC (0x03|0x0038) plen 0 #19 [hci0] 2.843120
> HCI Event: Command Complete (0x0e) plen 5 #20 [hci0] 2.845170
Read Number of Supported IAC (0x03|0x0038) ncmd 1
Status: Success (0x00)
Number of IAC: 2
< HCI Command: Read Current IAC LAP (0x03|0x0039) plen 0 #21 [hci0] 2.845289
> HCI Event: Command Complete (0x0e) plen 8 #22 [hci0] 2.847021
Read Current IAC LAP (0x03|0x0039) ncmd 1
Status: Success (0x00)
Number of IAC: 1
Access code: 0x9e8b33 (General Inquiry)
< HCI Command: Set Event Filter (0x03|0x0005) plen 1 #23 [hci0] 2.847109
Type: Clear All Filters (0x00)
> HCI Event: Command Complete (0x0e) plen 4 #24 [hci0] 2.849172
Set Event Filter (0x03|0x0005) ncmd 1
Status: Invalid HCI Command Parameters (0x12)
= Close Index: 00:1A:7D:DA:71:12 [hci0] 2.849251
@ RAW Close: hciconfig
PS：一个非常重要的细节是，我的 Geforce 1050 无法在我尝试更新到的新 Linux 内核上运行。更新到新的倒数第二个内核后，我的视频无法正常工作。
答案1
我已经解决了同样的问题。
将以下内容移至另一个位置：
/lib/firmware/rtl_bt/rtl8761b_config.bin
/lib/firmware/rtl_bt/rtl8761b_fw.bin
创建链接：
cd /lib/firmware/rtl_bt/
ln -s rtl8761bu_fw.bin rtl8761b_fw.bin
ln -s rtl8761bu_config.bin rtl8761b_config.bin