Change your screen resolution and layout in Windows
Learn how to improve the clarity of text and images displayed on your screen by changing the screen resolution, scale and layout of your monitor.
Troubleshoot external monitor connections in Windows - Microsoft Support
In some cases, pressing Windows logo Key + Ctrl + Shift + B to reset your graphics driver may fix your issue. If this does not work, see if restarting helps. If you are experiencing issues after an update, returning, or rolling back, to a previous version of your display driver may solve the issue. To roll back the driver:
How to change the aspect ratio of a video - Microsoft Support
To choose the right aspect ratio for your project, consider: Where and how you intend to use your final video. The videos and/or images you plan to import and edit. The aspect ratio for your editing project depends on your intended use, and the dimensions and resolution of your personal media.
How to use multiple monitors in Windows - Microsoft Support
Learn how to connect your Windows PC to external monitors and adjust the display settings.
Change display brightness and color in Windows - Microsoft Support
If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results. In Device Manager, select Display adapters, then select the display adapter.
Update drivers through Device Manager in Windows - Microsoft Support
Download the drivers for the desired device from the device manufacturer's site. Make sure to download the correct drivers that match the version and architecture of Windows. Once downloaded, if necessary, uncompress the downloaded drivers. Make a note of where the drivers are located on the Windows device.
Visual disabilities – accessibility and features | Xbox Support
To help you get to sleep, turn on Night mode (or the Night light on a PC) and your display will show warmer colours at night that are easier on your eyes. This can also be helpful for people who are photosensitive.
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Screen mirroring and projecting to your PC or wireless display
On the device you’re projecting from, go to the screen mirroring settings (sometimes called cast settings), and select your PC to connect to it. If you’re projecting from a PC, you can also select Windows logo key + K and select the PC you’d like to connect to.
Windows Sonic, Dolby Atmos, and DTS Headphone:X headset settings on ...
DTS Headphone:X is an immersive audio format that provides object-based surround sound for a 3D listening experience. If you'd rather use DTS Headphone:X, choose this setting under Headset audio.