1

My Ubuntu 16.04 WiFi is not getting connected to my Bluetooth speaker. Even when I try searching for the new device it is not showing anything though the speaker gets connected to my smartphone. My smartphone also doesn't show my laptop's Bluetooth though the visibility is on.

enter image description here

I have checked blockage, it says no.

There is a similar problem for Ubuntu 14.04 but the solution doesn't work for me 16.04. Bluetooth not detecting any devices

This is the error I get: E: Unable to locate package rtl8723au-bt-dkms

I tested for this:

lsusb; dmesg | egrep -i 'blue|firm'

The output was:

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0bda:b006 Realtek Semiconductor Corp. 
Bus 001 Device 002: ID 04f2:b50d Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

With lspci -knn | grep Net -A3; lsusb, the output was

03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE 

PCIe Wireless Network Adapter [10ec:b723]
DeviceName: Realtek RTL8723BE 802.11b/g/n 1x1Wi-Fi + BT4.0 Combo Adapter
Subsystem: Hewlett-Packard Company RTL8723BE PCIe Wireless Network Adapter [103c:804c]
Kernel driver in use: rtl8723be
Kernel modules: rtl8723be
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 0a)
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0bda:b006 Realtek Semiconductor Corp. 
Bus 001 Device 002: ID 04f2:b50d Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Also on restarting the bluetooth, it shuts off but does not start.

It's Ubuntu 16.04 LTS.

Output of cat /etc/apt/sources.list

is deb http://archive.ubuntu.com/ubuntu xenial main universe restricted multiverse

Satyam Singh
  • 111

1 Answers1

0

This bluetooth device is not supported by the 4.4 kernel.

Upgrade it to 4.10 by running

sudo apt update
sudo apt install linux-generic-hwe-16.04

Reboot with the new kernel. The BT adapter should work unless there is no firmware.

Update: Your /etc/apt/sources.list doesn't have xenial-updates for some reason.

You can create a default sources.list. Delete /etc/apt/sources.list by running

sudo rm /etc/apt/sources.list

then go to System Settings -> Software & Updates and enable all repos.

Then you'll be able to install linux-generic-hwe-16.04.

Pilot6
  • 90,100
  • 91
  • 213
  • 324
  • Comments are not for extended discussion; this conversation has been moved to chat. – Thomas Ward Oct 03 '17 at 18:27
  • I updated the kernel. It didnot solve the problem. Rather, I'm getting this error. https://askubuntu.com/questions/898449/kernel-panic-and-unable-to-boot-ubuntu-16-04-after-updating – Satyam Singh Oct 04 '17 at 01:02
  • After this, my WiFi is also not getting properly connected. – Satyam Singh Oct 04 '17 at 12:25
  • Something is wrong with your system. It is unclear why you can't install linux-generic-hwe-16.04 and why you have the 4.8 kernel now. – Pilot6 Oct 04 '17 at 12:26
  • Updating the Kernel is a common problem as it has been asked in another question. Moreover, in the previous as well as the present kernel, sudo apt get install bluetooth is not working. – Satyam Singh Oct 04 '17 at 12:43
  • The problem seems to be version-dependent, so three-year-old references are unlikely to work. That was my experience. Updating some modules led to progress: instead of a more severe message -- I don't remember exactly what it was -- I now get the message "device not available" which suggests that at least the software knows it exists. – Paul A. May 08 '21 at 04:12