bluetoothctl No default controller available

bluetooth bluez
user3534541 picture user3534541 · Jan 16, 2018 · Viewed 53.7k times · Source

It's a bit wired here.

I have a problem is bluetoothctl always said "No default controller available". I found there are many people had same problem with me. But the situation is a bit different from them.

I can see my hciconfig -a have information like below enter image description here

And hcitool dev seems no problem as well. enter image description here

But I have no idea why my bluetoothctl always said "No default controller available" enter image description here

Even I turn down and turn up hci0 several times. It always in the same problem.

BTW, my BlueZ is 5.39. And I tried this experiment on buildroot. Kernel is 3.10

Answer

A. Baur picture A. Baur · Jul 2, 2018

Had the same problem. Use: $ sudo bluetoothctl

Then the controller was found automatically. I also tried https://www.raspberrypi.org/forums/viewtopic.php?t=207025 before. Maybe this effected the solution.

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