Hey, I have a couple of different sets of Bluetooth headphones and they work fine with my Acer Chromebook R-13. I can also connect other bluetooth devices to it like my phone and bluetooth speakers etc. I got a set of Xiaomi Dots earbuds a little while ago and paired them up with my Chromebook, they connected fine but the audio would fade in and out, stopping and restarting but not disconnecting at any time, this wasn't happening with any other bluetooth audio devices. The earbuds worked fine on other computers and my phone, they only did this on the Chromebook.
So thinking it was just a problem with the earbuds I tried an older pair that I had in my drawer. These connected but no audio would play. Again, they worked fine when connected to a different device they only had a problem with the Chromebook.
So then I ordered another new set of earbuds and tried those out on the Chromebook, again the same result. They would connect but not play any audio - and this was after putting the Chromebook through a powerwash. They work fine on any other device.
Given that this problem only occurs with earbuds I'm guessing its a signal issue - the earbuds are not putting out a strong enough signal for the audio to be played effectively. If anyone has a fix for this then I'd love to hear it. Thanks.