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My Bluetooth is not working in my ubuntu 18.04(I recently installed it). I have tried almost all answers on StackExchange, but no use.

Here are some commands that might help you understand the problem.

$ systemctl status bluetooth

● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
   Active: inactive (dead)
     Docs: man:bluetoothd(8)
lines 1-4/4 (END)

I know it can be started by systemctl start bluetooth but it is of no use, as it does not change any thing except the status.

And

$ sudo bluetoothctl

It does not do any thing except a blank cursor which I have to cancel manually.

I also have installed bluez as someone said in any answer. Version is

$ dpkg --status bluez | grep '^Version:'
Version: 5.50-0ubuntu0ppa1

If I start bluetooth service by $ systemctl start bluetooth then bluetoothctl shows following.

(base) ahmad@ahmad-HP-Laptop-15-da1xxx:~$ bluetoothctl 
Agent registered
[bluetooth]# list
[bluetooth]# scan on
No default controller available
[bluetooth]# power
Missing on/off argument
[bluetooth]# power on
No default controller available
[bluetooth]#

But I can see a small bluetooth ugly symbol at top(Maybe because of bluez), but turing it on pops up a window as following

Please help me solve this problem.

Edit

Also 1 more command might help you, after starting bluetooth, I typed this too

(base) ahmad@ahmad-HP-Laptop-15-da1xxx:~$ lspci -knn | grep Net -A3; lsusb
03:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8821CE 802.11ac PCIe Wireless Network Adapter [10ec:c821]
    Subsystem: Hewlett-Packard Company RTL8821CE 802.11ac PCIe Wireless Network Adapter [103c:831a]
    Kernel driver in use: rtl8821ce
    Kernel modules: rtl8821ce
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0408:5365 Quanta Computer, Inc. 
Bus 001 Device 002: ID 04f2:1055 Chicony Electronics Co., Ltd 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Edit:

(base) ahmad@ahmad-HP-Laptop-15-da1xxx:~$ rfkill list
0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

Edit2

enter image description here

Edit 3

(base) ahmad@ahmad-HP-Laptop-15-da1xxx:~$ lsmod | grep -i rtl
rtl8821ce            1794048  0
cfg80211              712704  1 rtl8821ce
Ahmad Anis
  • 177
  • Try sudo apt-get install blueman and then sudo apt-get bluez then reboot. – darth_epoxy Aug 27 '20 at 09:35
  • Already did that, nothing happened. – Ahmad Anis Aug 27 '20 at 09:55
  • Try rfkill list and post the output for us. – darth_epoxy Aug 27 '20 at 10:11
  • @darth_epoxy added the output – Ahmad Anis Aug 27 '20 at 16:00
  • Hmm, if you go to Startup Applications from the Show Applications menu do you see the Blueman Applet or any other Bluetooth apps/modules there? Also, typing sudo systemctl enable bluetooth once should prevent you from having to use the start command after every boot. – darth_epoxy Aug 28 '20 at 11:34
  • In Startup Applications I see Blueman applet only. I ran sudo systemctl enable bluetooth but no use. After running this command, I ran this to check but no use. 
    (base) ahmad@ahmad-HP-Laptop-15-da1xxx:~$ systemctl status bluetooth
● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset
   Active: inactive (dead)
     Docs: man:bluetoothd(8)
    – Ahmad Anis Aug 28 '20 at 20:07
  • I am pretty sure it's the driver then, please investigate https://askubuntu.com/questions/1080561/ubuntu-18-04-hp-laptop-realtek-8821ce-wifi-adapter-not-working as your 8821CE is a combined WiFi/Bluetootch network adapter. – darth_epoxy Aug 28 '20 at 21:56
  • @darth_epoxy, I already added the drivers for this using software and updates, isn't it sufficient though? Thanks for the link though, I will try it. – Ahmad Anis Aug 28 '20 at 22:09
  • Remove the donlge, reboot and after logging in immediately open a terminal and try sudo modprobe -r rtl8723ce && sudo modprobe rtl8723ce then see if you get a different response. – darth_epoxy Aug 29 '20 at 00:49
  • How to remove dongle? Everything is built-in laptop, I havent attached any external dongle. – Ahmad Anis Aug 29 '20 at 08:53
  • Anyways, doing that command gives this output modprobe: FATAL: Module rtl8723ce not found. – Ahmad Anis Aug 29 '20 at 08:53
  • Your questions reads "Plug in a dongle to use" but let's move on. We need to find the module name so we can try the modprobe method. Type lsmod | grep -i rtl and see if one looks like it is meant for your 8723 network adapter. – darth_epoxy Aug 29 '20 at 09:06
  • Added the results of lsmod | grep -i rtl – Ahmad Anis Aug 29 '20 at 09:24
  • Oh my bad c&p, use sudo modprobe -r rtl8821ce && sudo modprobe rtl8821ce then. – darth_epoxy Aug 29 '20 at 09:34
  • This restarted my Wifi, but Bluetooth still not working. and for this https://askubuntu.com/questions/1080561/ubuntu-18-04-hp-laptop-realtek-8821ce-wifi-adapter-not-working link, the github link given in it is not working. – Ahmad Anis Aug 29 '20 at 09:46
  • See if you have multiple modules in which case you might need to blacklist some lsmod | grep -i blu and then check again for errors dmesg | grep -i blue and post relevant info. – darth_epoxy Aug 29 '20 at 09:53
  • Let us continue this discussion in chat. – Ahmad Anis Aug 29 '20 at 10:27

0 Answers0