After upgrading to kernel 5.0.16 (Fedora29) the connection to my bluetooth mouse (M555b) is lost after idle or reboot. I have to reconnect the device.
In the journal, I find that the device was removed.
If I don't reconnect, bluetoothctl constantly reports "connection on", "connection off", "connection on", connection off"...
(Though not the smae, there seem to be more problems with bluetooth in 5.0.16 https://www.reddit.com/r/Fedora/comments/bp6ddq/my_bluetooth_isnt_working_in_kernel_5016/)
Looks like it's the same as this one: https://bugzilla.kernel.org/show_bug.cgi?id=203643
*** This bug has been marked as a duplicate of bug 203643 ***