So I've been trying to use the HDMI Input feature on my Alienware 18 for the Wii U. However I am running into a frustrating issue where the HDMI IN works for 20 seconds, then decides to stop working, then switch backing to working. For every 10-20 second interval it switches between Wii U and Desktop.

This is extremely frustrating since anytime this question has been asked here or elsewhere there has been NO solution, making me wonder why both putting an HDMI IN feature in the first place.

So I'm asking is there actually a solution to this are is this a useless feature? I've tried installing/reinstalling video drivers and changing HDMI cables. Could this be a problem with SLI? Does anyone even know the source of the problem?

Also when it does work for the 20 seconds, is there a way to increase the brightness of the screen, or are you stuck with the dim screen the entire time? Actual answers would be greatly appreciated to this problem for once.