I am facing similar issue in Kubuntu 18.04. I recently upgraded from 17.10. It was working fine in 17.10. My Bluetooth headset does not connect after suspend.
I reported in KDE, they asked to raise against Bluez.
https://bugs.kde.org/show_bug.cgi?id=393631
My temporary fix is restarting the bluetooth service,
sudo service bluetooth restart
I am facing similar issue in Kubuntu 18.04. I recently upgraded from 17.10. It was working fine in 17.10. My Bluetooth headset does not connect after suspend.
I reported in KDE, they asked to raise against Bluez.
https:/ /bugs.kde. org/show_ bug.cgi? id=393631
My temporary fix is restarting the bluetooth service,
sudo service bluetooth restart