Bluetooth devices not reconnecting after reboot [Solved]

[littleconda]

I recently encountered an issue where my bluetooth mouse and keyboard would not automatically reconnect after a reboot. Everytime I restarted, I would have to delete the device, pair it and it would work fine till the next reboot. This happened when I upgraded to kernel 5.9x. Took me awhile to figure out the issue so I am posting this to hopefully save others some time if they encounter it.

Problems with all BLE devices on kernel 5.9+
Starting with v5.9, the kernel Bluetooth stack tries to use link-layer privacy on BLE connections. If the device works after pairing but does not survive a reboot or suspend, it is probably because of this.

To workaround this issue, open /var/lib/bluetooth/<adapter mac>/<device mac>/info, remove the following 2 lines, and restart the bluetooth service:
rc-service bluetooth restart

delete these 2 lines in /var/lib/bluetooth/<adapter mac>/<device mac>/info

Code: Select all

[IdentityResolvingKey]
Key=...

I found a small blurb about it here
https://wiki.archlinux.org/index.php/Bluetooth

Good Luck
Scott

[pd1986]

It has bothered me for almost 2 hours. Same issue with my mouse. I tried with my phone. The phone can connect my computer but my computer cannot connect my phone. That should be because of this. Thanks for saving me.

[Naib]

thats a workaround. whats needed is to trust the device and when you are pairing you need to trust before you pair. This is key for devices that cannot send an authentication pin (ie mice or keyboards). SOME automatically send a number(some logitec, some microsoft) but most don't