rtbth

Bluetooth not working properly Ubuntu 20.04

Asked by Piyush Santosh Mhatre

Hello I have Ubuntu 20.04 and have rt3290 and its bluetooth was not working even after trying so many solutions. So to on it I have to enter command :- sudo modprobe rtbth every time I boot in and it become on but it never find any other device and also laptop is visible to any other device. Output of command :- service bluetooth status

[ ● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Thu 2021-01-21 11:18:56 IST; 10min ago
       Docs: man:bluetoothd(8)
   Main PID: 5147 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 4514)
     Memory: 2.0M
     CGroup: /system.slice/bluetooth.service
             └─5147 /usr/lib/bluetooth/bluetoothd

Jan 21 11:18:56 Piyush-X55C systemd[1]: Starting Bluetooth service...
Jan 21 11:18:56 Piyush-X55C bluetoothd[5147]: Bluetooth daemon 5.53
Jan 21 11:18:56 Piyush-X55C systemd[1]: Started Bluetooth service.
Jan 21 11:18:56 Piyush-X55C bluetoothd[5147]: Starting SDP server
Jan 21 11:18:56 Piyush-X55C bluetoothd[5147]: Bluetooth management interface 1.17 initialized
Jan 21 11:19:00 Piyush-X55C bluetoothd[5147]: Endpoint registered: sender=:1.66 path=/MediaEndpoint/A2DPSink/sbc
Jan 21 11:19:00 Piyush-X55C bluetoothd[5147]: Endpoint registered: sender=:1.66 path=/MediaEndpoint/A2DPSource/sbc
~
]

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

output of command:- sudo btmgmt info

[ Index list with 1 item
hci0: Primary controller
 addr A4:17:31:1D:65:54 version 4 manufacturer 91 class 0x000000
 supported settings: powered connectable fast-connectable discoverable bondable link-security ssp br/edr debug-keys
 current settings: bondable ssp br/edr
 name Piyush-X55C
 short name
]

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Bernard Stafford (bernard010) said : 		#2

You might consider filing a bug report. Terminal : ubuntu-bug bluetooth
This will start apport to help collect data and automatically add it to your bug report.
https://wiki.ubuntu.com/Apport

Revision history for this message
Piyush Santosh Mhatre (piyush-m) said : 		#3

I have done that in this bug report please visit it https://bugs.launchpad.net/rtbth/+bug/1914007

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Daniel van Vugt (vanvugt) said : 		#5

This discussion has moved to bug 1914007.

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Piyush Santosh Mhatre (piyush-m) said : 		#6

Thank you very much I wiil upload the output of commands soon after a while.

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Piyush Santosh Mhatre (piyush-m) said : 		#7

@Karen I have posted all details in my another registered bug , Daniel has given its link in the comments.

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Daniel van Vugt (vanvugt) said : 		#8

We do not need any more information. This is not an Ubuntu bug so it should not be discussed on this site.

The problem you are experiencing is from https://github.com/loimu/rtbth-dkms

If you would like to discuss getting a fix into Ubuntu then the appropriate page is: bug 1189721

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Piyush Santosh Mhatre (piyush-m) said : 		#9

Thank you @Daniel for that link can you please please explain the procedure to do that because I am a newbie and started Ubuntu 2-3 weeks ago.

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Daniel van Vugt (vanvugt) said : 		#10

If nobody is able to resolve bug 1189721 then my only suggestion is to replace the wireless card, as mentioned in https://bugs.launchpad.net/rtbth/+bug/1914007/comments/6

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Piyush Santosh Mhatre (piyush-m) said : 		#11

Output of :- hcitool dev
 [ Devices:
 hci0 A4:17:31:1D:65:54 ]

Output of :- sudo lsmod |grep blue
[ bluetooth 577536 36 btrtl,rtbth,btintel,btbcm,bnep,btusb,rfcomm
         ecdh_generic 16384 1 bluetooth ]

Output of :- sudo apt-get install rfkill
[ rfkill is already the newest version (2.34-0.1ubuntu9.1). ]

Revision history for this message
Piyush Santosh Mhatre (piyush-m) said : 		#12

@Daniel I tried command :- bluetoothctl And I found this error.
Agent registered
[bluetooth]# scan on
[bluetooth]# discoverable on
Changing discoverable on succeeded
[bluetooth]# scan on
Failed to start discovery: org.bluez.Error.InProgress
[bluetooth]#

Revision history for this message
Piyush Santosh Mhatre (piyush-m) said : 		#13

Output of command :- service bluetooth status

● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2021-02-05 12:19:55 IST; 45min ago
       Docs: man:bluetoothd(8)
   Main PID: 4928 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 4514)
     Memory: 2.2M
     CGroup: /system.slice/bluetooth.service
             └─4928 /usr/lib/bluetooth/bluetoothd

Feb 05 12:19:55 Piyush-X55C systemd[1]: Starting Bluetooth service...
Feb 05 12:19:55 Piyush-X55C bluetoothd[4928]: Bluetooth daemon 5.53
Feb 05 12:19:55 Piyush-X55C systemd[1]: Started Bluetooth service.
Feb 05 12:19:55 Piyush-X55C bluetoothd[4928]: Starting SDP server
Feb 05 12:19:56 Piyush-X55C bluetoothd[4928]: Bluetooth management interface 1.17 initialized

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