KDE Plasma: 5.10.4
KDE Frameworks: 5.36.0
Qt: 5.931
Kernel 4.11.8.2-default

When I connect my Bluetooth speaker it:

* identifies correctly
* pairs correctly
* connects correctly

When sending sound data to the device, the media locks up until the sound
reverts back to the internal speakers.

There doesn't appear to be any firmware errors:

$ > dmesg | grep firmware                    
[    4.036562] [drm] Found VCE firmware/feedback version 50.0.1 / 17!           
[    9.089009] iwlwifi 0000:08:00.0: loaded firmware version 17.459231.0
op_mode iwlmvm    
[   11.361173] Bluetooth: hci0: Intel Bluetooth firmware file:
intel/ibt-hw-37.7.10-fw-1.0.1.2d.d.bseq                                         
[   11.552494] Bluetooth: hci0: Intel Bluetooth firmware patch completed and
activated     

When booting both Linux Lite OS and Gecko Linux Stable Plasma as live
environments, the speaker works correctly.

This is my first attempt at using Bluetooth, so I don't know what information
is going to be useful.