hm so I'm experiencing a semi-serious/annoying bug in Kubuntu 18.04: every once in a while one of my two monitors goes dark? My solution so far has been to unplug the external monitor and plug it back in.
sooo I'm planning leaving Kubuntu and installing Pop_OS 18.04 due to this bug ☹️
Really hoping the bug doesn't also occur with Pop_OS installed 😕 (may be issue with my hardware)