Laptop Monitor Lag

[kaiethanserran]

I have the acer aspire e15 laptop and I have it connected to a new monitor. The problem I experience severe lag when I try to play games. The monitor is 1920x1080 and 60hz. When I play fortnite without the monitor I get steady frames. But when I play with the monitor I get 20-30 frames. I find this very odd. I would greatly apreciate it if someone could help me.

 

[hang-the-9]

Few things, is your resolution the same on the monitor and laptop screen? Do you have dual video cards? Some models run the external connection off different cards, if you have a separate video card the monitor may be running on the onboard video card.

 

[2sidedpolygon]

When it comes to laptops, they use a power-saving technology that runs the GPU through the CPU to the laptop's monitor. So, when your GPU isn't needed, it just uses the CPU's integrated graphics. When you connect it to a monitor, though, it's unable to use the GPU, and takes advantage of the CPU's integrated graphics, which are far inferior. Hence, the frame drop. This setup is very common, and only different on expensive VR-ready laptops. The VR-ready ones don't use the technology due to latencies which would cause motion sickness in VR.