OS is Win 8.1 64 bit
Graphics card is AMD 7770 using mini displyport to displayport on the U2414H (Dell supplied cable)
I'm trying to do exactly what it says on page 52 of the Dell U2414H User Guide, Reverse (180°) mount
I downloaded the 2 files Dell has made available, neither resolved this issue. I can only rotate 90 degrees, but manual is clear... see below:
