Quote Originally Posted by perr0 View Post
Luckily, mine is not so bad at 100%, so I can live with it. What do you do in your case? Have you tried setting PiP on your laptop?
I just dropped the resolution to 1080p, which is 4 physical pixels per virtual pixel. Looks good enough, runs cooler/faster and doesn't show those funky control issues that crop up with scaling enabled.

[edit] Two guys in the office got 4k displays recently; one's on a Macbook Pro, other is on an HP linux i7 machine. Both of them spin the GPU fans at like 80% all the time. Mine purrs along at zero fan noise and ~4.5 hours of battery life. It's been a nice change.