My girlfriend likes to watch me playing Battlefield or CoD, she's like film watching for her, the problem, I play, so she can watch a big TV, but I'd rather play my 27 inch screen again, I can play my Xbox Somehow somehow connect X simultaneously to my screen plus TV so that they can watch me on TV and still play on my screen?
So a console -> 2 times the same picture on 2 different output devices…
Are there splinters that can make one input, two output signals?
Yes, there's something called HDMI splitter:
https://www.amazon.de/...0162GTV5U/
Although I have no XBox, but a PS4, where it works with it.
If you do not have HDMI on your monitor, there are also cables like HDMI to DP or HDMI to DVI.