I can confirm that I also get this message while using my bluetooth headphones. Bluetooth is working fine. This message makes my TTY console sessions completely unusable. For example when I'm editing a file using nano or vi the message is written on top of the file, wherever my cursor was.
In my case, it has nothing to do with suspend or sleep modes. I get the message after a full reboot as well. I'm using ubuntu 18.04.
I can confirm that I also get this message while using my bluetooth headphones. Bluetooth is working fine. This message makes my TTY console sessions completely unusable. For example when I'm editing a file using nano or vi the message is written on top of the file, wherever my cursor was.
In my case, it has nothing to do with suspend or sleep modes. I get the message after a full reboot as well. I'm using ubuntu 18.04.