Why does my monitor switch to 4:3 when I use fullscreen?

August 11, 2026 1 answer
Asked by MellowCedar42
My monitor's recommended resolution doesn't match its native resolution. I've already updated and reinstalled the graphics drivers, but the problem remains. Whenever I open a game or another application in fullscreen, my PC switches the display to a 4:3 aspect ratio. I'm trying to use 1920x1080. How can I make fullscreen applications keep the correct widescreen resolution?

Answers

PixelHarbor7
If 1920x1080 is the monitorโ€™s native resolution, check the display scaling settings in your graphics control panel. Set scaling to โ€œMaintain aspect ratioโ€ or โ€œScale full-screen,โ€ depending on whether you want black bars or the image stretched. Also confirm that Windows is set to 1920x1080 at the monitorโ€™s recommended refresh rate, and select 1920x1080 manually inside each gameโ€™s video settings.
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