Answer to: Changing input port on Asus VE278Q monitorFor input select not responding: Power on, press menu and hold. Unplug power till monitor goes off, and then plug monitor back in. The input select will now work again. Worked for my ASUS VE278 just now. I had tried 3 different cable styles and still no signal and menu would not come up either. So I found this solution when searching for getting to the service menu.