Chromebook supports a number of screen resolutions and gives you the freedom to choose your desired one. You’ll need to go to the display settings under your Chromebook settings to view and change the screen resolution in your device. Here is how.
Reset the screen resolution with the keyboard shortcut Ctrl + Shift + 0 (zero)
Click on the clock/Wifi in the bottom right corner
Click on ‘Settings’ in the pop-up menu to access the Chromebook Settings.
Select Device from the Settings menu on the right hand side.
Select Displays from the Device settings.
Use the slider to adjust resolution.