USB Bluetooth V5? not recognized

[Jeronimo17]

@Jeronimo17 Do you still have any problems?

It works, with kernel 5.8, I would like to continue with the old one ...

I copy rtl8761bu_fw to /lib/firmware/rtl_bt/ and rename it to rtl8761b_fw.bin

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[259.604013] Bluetooth: Core ver 2.22
[  259.604077] NET: Registered protocol family 31
[  259.604079] Bluetooth: HCI device and connection manager initialized
[  259.605913] Bluetooth: HCI socket layer initialized
[  259.605918] Bluetooth: L2CAP socket layer initialized
[  259.605931] Bluetooth: SCO socket layer initialized
[  259.638781] usbcore: registered new interface driver btusb
[  259.644999] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[  259.646995] Bluetooth: hci0: RTL: rom_version status=0 version=1
[  259.646998] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761b_fw.bin
[  259.648518] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761b_config.bin
[  259.648822] Bluetooth: hci0: RTL: cfg_sz 6, total sz 20522
[  259.815609] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[  259.815613] Bluetooth: BNEP filters: protocol multicast
[  259.815621] Bluetooth: BNEP socket layer initialized
[  259.847007] Bluetooth: hci0: RTL: fw version 0x0999646b
[  259.984024] NET: Registered protocol family 38
[  260.095440] Bluetooth: RFCOMM TTY layer initialized
[  260.095450] Bluetooth: RFCOMM socket layer initialized
[  260.095462] Bluetooth: RFCOMM ver 1.11

Thank you all, hopefully a patch is made that adds it to kernel 5.4

[drunys]

I went through the same problem here. I Bought this one http://www.orico.cc/us/product/detail/7218.html and my OS is Ubuntu 20 and kernel 5.4.0-48-generic. I'm so happy I found you all talking about the same problem.

What I did to get it working here:

1 - I uninstalled everything I tried before:

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sudo apt remove bluetooth bluez bluez-cups bluez-tools btscanner gnome-bluetooth python-bluez pulseaudio-module-bluetooth blueman blueman-manager

2 - I installed MPOW drivers downloaded from: https://mpow.s3-us-west-1.amazonaws.com ... +Linux.tgz (credits to FadySGhatas). To install I ran:

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sudo make install INTERFACE=all

3 - Rebooted

4 - When I ran: dmesg | grep Blue I saw that my bluetooth have been recognized

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[    2.095392] usb 1-1.5: Product: Bluetooth Radio
[    2.745979] Bluetooth: Core ver 2.22
[    2.746000] Bluetooth: HCI device and connection manager initialized
[    2.746005] Bluetooth: HCI socket layer initialized
[    2.746007] Bluetooth: L2CAP socket layer initialized
[    2.746009] Bluetooth: SCO socket layer initialized
[    2.749727] rtk_btusb: Realtek Bluetooth USB driver ver 3.1.9321f79.20200610-155144
[    4.624426] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    4.624428] Bluetooth: BNEP filters: protocol multicast
[    4.624431] Bluetooth: BNEP socket layer initialized
[   12.839489] Bluetooth: RFCOMM TTY layer initialized
[   12.839494] Bluetooth: RFCOMM socket layer initialized
[   12.839499] Bluetooth: RFCOMM ver 1.11

Before installing MPOW drivers it looked like this:

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[ 7655.176012] Bluetooth: hci0: rtl: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[ 7655.176051] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_config.bin
[ 7655.178154] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2
[ 7655.178161] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_fw.bin
[ 7655.180308] Bluetooth: hci0: rom_version status=0 version=1
[ 7655.180329] Bluetooth: hci0: cfg_sz 0, total size 20204
[ 7657.312083] Bluetooth: hci0: command 0xfc20 tx timeout
[ 7665.376131] Bluetooth: hci0: download fw command failed (-110)

5 - I installed all these:

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sudo apt install bluetooth bluez bluez-cups bluez-tools btscanner gnome-bluetooth python-bluez pulseaudio-module-bluetooth blueman blueman-manager rfkill -y

6 - Run the following to make sure the bluetooth is not locked for some reason:

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sudo rfkill list

If it is, just run:

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sudo rfkill unblock bluetooth

7 - Finally make sure bluetooth service is running:

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sudo service bluetooth start

I had to reboot once again and restart bluetooth service after booting (sudo service bluetooth restart). It's working 100% now.

[Jeronimo17]

2 - I installed MPOW drivers downloaded from: https://mpow.s3-us-west-1.amazonaws.com ... +Linux.tgz (credits to FadySGhatas). To install I ran:

Code: Select all

sudo make install INTERFACE=all

Thank you very much, I have done just that and it works with the current kernel

[qrafzv0]

I went through the same problem here. I Bought this one http://www.orico.cc/us/product/detail/7218.html and my OS is Ubuntu 20 and kernel 5.4.0-48-generic. I'm so happy I found you all talking about the same problem.

What I did to get it working here:

1 - I uninstalled everything I tried before:

Code: Select all

sudo apt remove bluetooth bluez bluez-cups bluez-tools btscanner gnome-bluetooth python-bluez pulseaudio-module-bluetooth blueman blueman-manager

2 - I installed MPOW drivers downloaded from: https://mpow.s3-us-west-1.amazonaws.com ... +Linux.tgz (credits to FadySGhatas). To install I ran:

Code: Select all

sudo make install INTERFACE=all

3 - Rebooted

4 - When I ran: dmesg | grep Blue I saw that my bluetooth have been recognized

Code: Select all

[    2.095392] usb 1-1.5: Product: Bluetooth Radio
[    2.745979] Bluetooth: Core ver 2.22
[    2.746000] Bluetooth: HCI device and connection manager initialized
[    2.746005] Bluetooth: HCI socket layer initialized
[    2.746007] Bluetooth: L2CAP socket layer initialized
[    2.746009] Bluetooth: SCO socket layer initialized
[    2.749727] rtk_btusb: Realtek Bluetooth USB driver ver 3.1.9321f79.20200610-155144
[    4.624426] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    4.624428] Bluetooth: BNEP filters: protocol multicast
[    4.624431] Bluetooth: BNEP socket layer initialized
[   12.839489] Bluetooth: RFCOMM TTY layer initialized
[   12.839494] Bluetooth: RFCOMM socket layer initialized
[   12.839499] Bluetooth: RFCOMM ver 1.11

Before installing MPOW drivers it looked like this:

Code: Select all

[ 7655.176012] Bluetooth: hci0: rtl: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[ 7655.176051] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_config.bin
[ 7655.178154] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2
[ 7655.178161] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_fw.bin
[ 7655.180308] Bluetooth: hci0: rom_version status=0 version=1
[ 7655.180329] Bluetooth: hci0: cfg_sz 0, total size 20204
[ 7657.312083] Bluetooth: hci0: command 0xfc20 tx timeout
[ 7665.376131] Bluetooth: hci0: download fw command failed (-110)

5 - I installed all these:

Code: Select all

sudo apt install bluetooth bluez bluez-cups bluez-tools btscanner gnome-bluetooth python-bluez pulseaudio-module-bluetooth blueman blueman-manager rfkill -y

6 - Run the following to make sure the bluetooth is not locked for some reason:

Code: Select all

sudo rfkill list

If it is, just run:

Code: Select all

sudo rfkill unblock bluetooth

7 - Finally make sure bluetooth service is running:

Code: Select all

sudo service bluetooth start

I had to reboot once again and restart bluetooth service after booting (sudo service bluetooth restart). It's working 100% now.

Thank you!

I had the same problem and it worked only after disabling Secure Boot. Is that safe? Is there any way to make this work without disabling secure boot?

[drunys]

Thank you!

I had the same problem and it worked only after disabling Secure Boot. Is that safe? Is there any way to make this work without disabling secure boot?

I wondered about it some time ago when I switched from Windows to Linux and I remember to find some answers here https://askubuntu.com/questions/843656/ ... ecure-boot

[sil_el_Mot]

this worked great on kernel 5.8 on my side, but now on 5.9.1 i cant get it to work anymore.... anybody with same or opposite experiences?

[rumpel]

Same here. But that's due to the 5.9 kernel breaking bluetooth for many people/devices. There've been a lot of reports on the kernel bug tracker as well as the Arch forums. I booted the LTS kernel the other day but then remembered it doesn't have the hardware info that was added to the 5.8 kernel lol so obviously this didn't work. Unfortunately not much else you can do at this point than rollback to a previous kernel or patiently wait for an update. Kind of sucks, but there's a 5.10 RC out now, so fingers crossed it's fixed in the next release.

[marxram]

Same here on 5.9.1

[Flashwalker]

Quick update!

Everything works on my end now!

On Linux Mint, I had to get rid of all other custom bluetooth drivers so that the new driver can take over.
On Archlinux, in short, for a ko to be hooked, it must be xz'd (check module installation here: https://wiki.archlinux.org/index.php/Co ... nel_module), so I manually ran this:

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xz rtk_btusb.ko
cp  rtk_btusb.ko /usr/lib/modules/5.7.11-arch1-1/kernel/drivers/bluetooth/

*Note: You might need to replace 5.7.11 on your end or just use

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uname -r

So, in brief, install the latest MPOW drivers and it should start working as soon as it's installed.

What actually drivers you got rid?

[Flashwalker]

Very nice, thanks! I was able to get the drivers working with Linux 5.8 after unloading some bluetooth modules, rtk_btusb worked. Earbuds work great!

I found the Techkey (the brand of mine) Windows drivers, but they don't provide Linux drivers.

EDIT: Silly, I don't need the kernel driver, they provide the firmware. So, in Linux 5.8, with the firmware, it works just fine (should be able to patch the kernel below 5.8 for proper device recognition; not sure if this will be backported?). I'll see about letting the devs know about this, last I could find was someone was interested in sending the Windows drivers to the firmware group. Still no license info in the tgz file.

What actually bluetooth modules are you unloaded? What rtl chip you own?

[Flashwalker]

this worked great on kernel 5.8 on my side, but now on 5.9.1 i cant get it to work anymore.... anybody with same or opposite experiences?

I have the same trouble, with 5.9 kernel. Adapter not found, however driver is loaded:

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$ uname -a
Linux smarttop 5.9.0-1-amd64 #1 SMP Debian 5.9.1-1 (2020-10-17) x86_64 GNU/Linux

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$ sudo dmesg | tail
[   63.811780] usb 2-2: new full-speed USB device number 2 using xhci_hcd
[   63.981993] usb 2-2: New USB device found, idVendor=0bda, idProduct=8771, bcdDevice= 2.00
[   63.982000] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   63.982003] usb 2-2: Product: Bluetooth Radio
[   63.982006] usb 2-2: Manufacturer: Realtek
[   63.982009] usb 2-2: SerialNumber: 00E04C239987
[   64.020370] usbcore: registered new interface driver btusb
[   64.022887] Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[   64.025851] Bluetooth: hci0: RTL: rom_version status=0 version=1
[   64.025854] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761b_fw.bin
[   64.027514] bluetooth hci0: firmware: direct-loading firmware rtl_bt/rtl8761b_fw.bin
[   64.027557] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761b_config.bin
[   64.027796] bluetooth hci0: firmware: direct-loading firmware rtl_bt/rtl8761b_config.bin
[   64.027843] Bluetooth: hci0: RTL: cfg_sz 25, total sz 21389
[   64.569190] Bluetooth: hci0: RTL: fw version 0x0d99646b

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$ lsmod |grep bluetooth
bluetooth             729088  12 btrtl,btintel,btbcm,bnep,btusb
ecdh_generic           16384  1 bluetooth
libaes                 16384  2 bluetooth,aesni_intel
rfkill                 28672  8 acer_wmi,bluetooth,cfg80211
crc16                  16384  2 bluetooth,ext4

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$ rfkill list
0: acer-wireless: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no

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$ hciconfig -a
hci0:	Type: Primary  Bus: USB
	BD Address: 00:E0:4C:6C:6D:03  ACL MTU: 1021:5  SCO MTU: 255:11
	DOWN 
	RX bytes:1202 acl:0 sco:0 events:118 errors:0
	TX bytes:22101 acl:0 sco:0 commands:118 errors:0
	Features: 0xff 0xff 0xff 0xfe 0xdb 0xfd 0x7b 0x87
	Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
	Link policy: RSWITCH HOLD SNIFF PARK 
	Link mode: SLAVE ACCEPT

$ sudo hciconfig hci0 up
Can't init device hci0: Connection timed out (110)

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$ blueman-adapters
blueman-adapters 00.30.22 ERROR    Adapter:53 __init__  : No adapter(s) found

[Flashwalker]

I made it works!
I patched 5.4 kernel with that patch: https://patchwork.kernel.org/patch/11483367/#patch , but manually, just by edit drivers/bluetooth/btrtl.c file in kernel source in consistent with .diff patch (because the patch command fails due to the .diff file is based on a more recent kernel source then 5.4).

Also edited: drivers/bluetooth/btusb.c file in kernel source by replacing:
static bool enable_autosuspend = IS_ENABLED(CONFIG_BT_HCIBTUSB_AUTOSUSPEND);
with
static bool enable_autosuspend = 0;.

Then i compiled and installed the kernel (these refs helped me, especially third one: https://fosspost.org/linux-bluetooth-problem/, https://help.ubuntu.com/community/Kerne ... Debian_Way, https://unix.stackexchange.com/question ... wer-270418).

Installed linux-firmware package.

And then just compiled that driver (https://mpow.s3-us-west-1.amazonaws.com ... +Linux.tgz) and copied files to system (without make install):
cp -iv 20200610_LINUX_BT_DRIVER/rtkbt-firmware/lib/firmware/rtlbt/rtl8761b_fw /usr/lib/firmware/rtl_bt/rtl8761b_fw.bin
cp -iv 20200610_LINUX_BT_DRIVER/rtkbt-firmware/lib/firmware/rtlbt/rtl8761b_config /usr/lib/firmware/rtl_bt/rtl8761b_config.bin

After reboot to new kernel my bluetooth 5.0 (Easy Idea) dongle works!

Bluetooth 5.0 Realtek 8761B "Easy Idea'

[rumpel]

To anyone whose device is still not working with 5.9 and/or 5.10, but was in 5.8, try replacing the firmware with this version from that AUR package I stumbled upon the other day.
The comments state it works with 5.9, but apparently there're issues such as random disconnects.

Yesterday, I compiled kernel 5.10-RC7 to check if it would work and to get rid of the 5.8 kernel I was still using. With the firmware from the MPOW website it still did not work, but I fortunately found the AUR package with the different firmware mentioned above and the adapter was finally working again!
I did use it for about 2 hours (until my bluetooth headset ran out of juice) and I didn't have any disconnects in that limited amount of time.