I have a MSU GE63VR 7RE (Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz) and a 24" Acer monitor
When I start Ubuntu, the second monitor is black but I can see the mouse arrow.
When I turn the monitor off and on it is mirrored but the picture is frozen, the mouse appears on the second screen but the picture does not update.
When I attempt to join the second screen goes blank.
I find it almost impossible to work with one screen, any idea where I can start troubleshooting?