I am using a Windows 8.1 pc, and a new Samsung television attached via HDMI, and I can't figure out why when I use the TV as monitor one, and my lappy as monitor 2, fullscreen won't work. I know I have done this in the past, but I can't figure out how to fix this. I have tried restarting, and updating to LR 5.7, as well as fiddling with different resolutions and screen configurations. Also, I searched online, and couldn't find anyone with a similar issue. It works if I use my lappy as monitor one, then the TV will show fullscreen monitor two. But sometimes I like to use the TV as monitor one, so much love to anyone who can help me sort this out. Also, yes I know that picture was massively overexposed.
Thanks in advance, Cheers.
On my laptop and TV, what displays where comes from the graphics card driver and has nothing to do with Lightroom.