Intel HD4600

[Chmielok]

Hi, I've bought Lenovo notebook with the Intel+nVidia combination.
It uses Intel HD4600 normally and GT740M for gaming.
I tried to attach another monitor to it and it worked flawlessly.
The problem begins, when I want to use both the monitor and built-in screen at the same time (expanded desktop).
It works well with windowed apps, but I can't manage to run e.g. games like Team Fortress 2 or OpenTTD (fullscreen). Even when I force them to launch in resolution like 1366x1536 or 2732x768, they just appear on main monitor in their default res. Can I force them to show fullscreen in one of those resolutions?

[Delphium]

Hi, have you set the extended monitor as the primary display when trying to game on this?

Have you got Nvidia Optimus installed and setup correctly?

I found that I often yielded better results using the Nvidia control panel to manage additional monitors rather than Windows display settings.