RTL8822BE bluetooth not working

Support Network
1

I have a Lenovo E495 with RTL8822BE wifi/ac adapter.

The bluetooth randomly disappeared for me.

lspci -k 

04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter
        Subsystem: Lenovo ThinkPad E595
        Kernel driver in use: rtw_8822be
        Kernel modules: rtwpci, rtw_8822be

rfkill list

0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
2: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no

systemctl | grep bluetooth

systemctl | grep bluetooth
  sys-devices-pci0000:00-0000:00:08.1-0000:05:00.4-usb3-3\x2d1-3\x2d1:1.0-bluetooth-hci0.device loaded active     plugged   /sys/devices/pci0000:00/0000:00:08.1/0000:05:00.4/usb3/3-1/3-1:1.0/bluetooth/hci0
  sys-subsystem-bluetooth-devices-hci0.device                                                   loaded active     plugged   /sys/subsystem/bluetooth/devices/hci0                                            
  bluetooth-mesh.service                                                                        loaded active     running   Bluetooth mesh service                                                           
  bluetooth.service                                                                             loaded active     running   Bluetooth service                                                                
  bluetooth.target                                                                              loaded active     active    Bluetooth

I have installed rtw88 AUR package, that is supposed to fix realtek drivers. Using LTS 5.4 kernel.

Bluetoothctl lists no available devices

Where should i look at next?

inxi -n
Network:   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 
           IF: enp2s0 state: down mac: 00:2b:67:8a:fd:7a 
           IF-ID-1: wlp4s0 state: up mac: 80:30:49:79:50:c5

It seems to be that inxi -n shows that the rtl8822be can’t be found

EDIT3:
Found that it is running but has somekind of a problem with an address already being in use.

bluetooth.service - Bluetooth service
     Loaded: loaded (/usr/lib/systemd/system/bluetooth.service; enabled; vendor preset: disabled)
     Active: active (running) since Mon 2020-09-07 19:27:43 EEST; 45min ago
       Docs: man:bluetoothd(8)
   Main PID: 765 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 16632)
     Memory: 3.4M
     CGroup: /system.slice/bluetooth.service
             └─765 /usr/lib/bluetooth/bluetoothd

sept  07 19:51:15 taavi-lenovo bluetoothd[765]: Endpoint unregistered: sender=:1.63 path=/MediaEndpoint/A2DPSource/sbc
sept  07 20:04:36 taavi-lenovo bluetoothd[765]: Ignoring index removal for a non-existent adapter
sept  07 20:04:37 taavi-lenovo bluetoothd[765]: RFCOMM server failed for Headset Voice gateway: rfcomm_bind: Address already in use (98)
sept  07 20:04:37 taavi-lenovo bluetoothd[765]: RFCOMM server failed for :1.67/Profile/HSPHS/00001108-0000-1000-8000-00805F9B34FB: rfcomm_bind: Address already in use (98)
sept  07 20:04:38 taavi-lenovo bluetoothd[765]: RFCOMM server failed for Headset Voice gateway: rfcomm_bind: Address already in use (98)
sept  07 20:04:38 taavi-lenovo bluetoothd[765]: RFCOMM server failed for :1.67/Profile/HSPHS/00001108-0000-1000-8000-00805F9B34FB: rfcomm_bind: Address already in use (98)
sept  07 20:04:38 taavi-lenovo bluetoothd[765]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSink/sbc
sept  07 20:04:38 taavi-lenovo bluetoothd[765]: Endpoint registered: sender=:1.63 path=/MediaEndpoint/A2DPSource/sbc
sept  07 20:04:43 taavi-lenovo bluetoothd[765]: Endpoint unregistered: sender=:1.63 path=/MediaEndpoint/A2DPSink/sbc
sept  07 20:04:43 taavi-lenovo bluetoothd[765]: Endpoint unregistered: sender=:1.63 path=/MediaEndpoint/A2DPSource/sbc
2

As you gave all info except your kernel version: there seems to be a bug in Realtek’s driver in recent kernel versions.

  • Please downgrade / upgrade to 5.4 LTS
  • Install this driver

That being said, this might cause your WiFi to disconnect randomly and the only solution to that is to turn off Bluetooth…

:sob:

P.S. You can also swap out the Realtek hardware to another brand, but then you’ll have to install the new brand’s UEFI drivers too and that’s an even bigger nightmare…

3

Already tried those, nothing changed for me.

The weird thing is - my wifi is working flawlessly, but linux can’t see the wifi/bt card rtl8822be using inxi -n. So it is really weird. Can I use Intel hardware(Intel makes the wifi/ac hardware aswell as far as i know) with my ryzen 5 3500u?

EDIT:
@Fabby I might go and buy intels wifi/ac module (ax200 seems to be nice), do you have any specific posts somewhere to link why the UEFI driver updates for a new brand is a nightmare or guides how to do it?

4 
Linux taavi-lenovo 5.4.62-1-MANJARO #1 SMP PREEMPT Thu Sep 3 14:38:22 UTC 2020 x86_64 GNU/Linux
5

No, I’m only on page 49 of 2706 because I was in the same situation as you and wanted to replace the brand, but am using a dongle for the moment until I get to the relevant page.

:man_shrugging:

6

rtl8822ce works fine with kernel 5.8.18-1 for me.

7

I have tried kernel 5.4, 5.8, 5.9 and no one works, it’s weird because the bluetooth used to work before some update.
Currently I have this workaround:

systemctl restart dbus

And then manually I start all network services (I use stacer, for easyness).
This guide me, to all this is a driver problem.

8

Did you do both of these:

:question:

As the OP never came back and told us whether it worked or not, the only info we have is from @anoap:

But, in the meantime, there are a few more kernels to be tried:

mhwd-kernel --list
available kernels:
   * linux414
   * linux419
   * linux44
   * linux49
   * linux510
   * linux54
   * linux57
   * linux58
   * linux59
   * linux54-rt
   * linux59-rt

But 5.7 and 5.8 are End-Of-Life (EOL), so have a look at Linus Torvalds’ page to have a look at the EOL dates before you try any of the above…

:+1: