No Bluetooth Found (Realtek?)

[BlackJoker]

@Aravisian the more problem now not about the start up as it's with the error

I can start up the bluetooth myself but after I start it up now I get this error

[Aravisian]

This answer may be worth trying:

Bluetooth service failed to set mode

[BlackJoker]

I tried this before

sudo rfkill unblock bluetooth
sudo systemctl stop bluetooth
sudo systemctl status bluetooth
sudo systemctl restart bluetooth

but it didn't help

[Aravisian]

From the link:

The mentioned answer with hciconfig from bluez package worked on an Ubuntu 22.04. With root privileges:

hciconfig hci0 down # Close HCI device.
rmmod btusb # Remove btusb module from the kernel
modprobe btusb # Add it back
hciconfig hci0 up # Open and initialize HCI device

On one line

hciconfig hci0 down && rmmod btusb && modprobe btusb && hciconfig hci0 up

If still doesn't work, check unplugging/plugging again, check if listed (sudo hciconfig -a) and if it's not blocked (sudo rfkill list).

[BlackJoker]

@Aravisian

hciconfig hci0 down && rmmod btusb && modprobe btusb && hciconfig hci0 up

I think I need to start the Bluetooth 1st then try

[Aravisian]

https://manpages.ubuntu.com/manpages/trusty/en/man8/hciconfig.8.html

You will need to identify your specific device.

[BlackJoker]

[BlackJoker]

now I used sudo modprobe rtbth to activate the bluetooth and then I used this [quote="Aravisian, post:113, topic:30351"]
hciconfig hci0 down && rmmod btusb && modprobe btusb && hciconfig hci0 up
[/quote]
and

operation not permit

[BlackJoker]

when I turn on my laptop the Bluetooth is dead

then I need to use sudo modprobe rtbth to make it active
then I tried what @Aravisian said and I got this result

[Aravisian]

@BlackJoker

operation not permit

Run with sudo.

[BlackJoker]

Now I got strange error

how it's showing here rfkill list 0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
no soft blocked and at the same time I got Failed to set mode: Blocked through rfkill (0x12)

[Aravisian]

Try

sudo rfkill unblock bluetooth

Then test bluetooth.

[BlackJoker]

I tried

@Aravisian

sudo rfkill unblock bluetooth

and same results

[Aravisian]

@BlackJoker

and same results

Try

sudo rfkill unblock all

[BlackJoker]

@Aravisian

sudo rfkill unblock all

[Aravisian]

This is very pernicious.

You have the patience of a saint. You may need to try a USB portable bluetooth device. The hardware you have (from across many threads) seems particularly antagonistic toward Linux.

[BlackJoker]

Not only Linux it stopped working on windows also half year ago