Here is a printscreen of a tooltip/intellisense that is there before and after I hit the printscreen key.
Here is a an image from my camera.
Have also tried delayed printscreen with count down using 3rd party software.
How can i Printscreen including tooltips/intellisense?
It works just fine with my keyboard. Maybe your print screen key is canceling the intellisense somehow.
Try using Key Remapper to temporarily change you print-screen key and try again. It's the only thing that comes to my mind right now.