If you’ve used Linux for several years across various devices you are going to run into some hazy déja-vus – the feeling that you’ve been here before, facing this problem, getting that error. But it’s been so long that your bookmarks and notes about it are long gone, not to mention any recollection of how or whether you even found a solution.
Sharing a bluetooth device between Windows and Linux is one such experience for me. I had a blutooth keyboard that I never got properly working with both OSes. I eventually spilled sticky, smelly liquid into the keyboard and tossed it. That was years ago. Today, I unpacked a pair of Edifier E25 Bluetooth pc speakers and ran head first into the problem I had faced oh back in 2011, probably:
You can pair the device to your pc in Linux and then pair it in Windows but either OS will render the other’s pairing invalid. Which means that you have to remove the old pairing and ‘repair’ the speakers every time you booted into another OS. Which is so cumbersome you might as well just get a cable out and be done with it.