Factorio Forums

What's the bug about:
When starting the game and going into full screen mode, the game will use the left(most) monitor, even if it is not the main monitor.

How to repro:
Hook up multiple monitors, at least two.
Start Factorio, Version 0.10.12
If not already on fullscreen, go to options => Graphics => Turn of fullscreen
Behold the game going fullscreen on the leftmost monitor.

Additional Info:
I have not had any problems of this kind with earlier versions of Factorio.
In my specific case, I am using 2 Monitors. It does not matter which one is the main one in Windows, or is being identified as Port 1 of my Graphics card, the game always goes into fullscreen on the left one. It also does not matter whether I am starting in fullscreen, or turn it on through the options menu.

No other games or programs show this behaviour.

Already suspected both me being too dumb to find the already existing thread and something along the lines of changed code that isn't properly reflected in game yet..

Thanks. ;/

We added a way to select the preferred screen in fullscreen mode in 0.11. version, check it out.