My cat walked across the keyboard, and afterward the colors on my right monitor looked wrong. Night mode, color filters, HDR, and screen tint all appear to be disabled. I also factory-reset the monitor and unplugged and reconnected the DisplayPort cable, but the problem is still there. What keyboard shortcut or display setting should I check next?
3 Answers
Even if the settings look disabled, check the color-filter shortcut: Windows + Ctrl + C. Also look through accessibility settings, night mode, and the active color profile, since a keyboard shortcut could have changed one of them.
Try resetting the graphics driver with Windows + Ctrl + Shift + B. The screen may flicker or go black briefly, then return. It’s a quick way to recover from an accidental graphics-setting glitch.
Since only one monitor is affected, compare the display settings for both screens and try recalibrating the affected monitor. If the colors are still wrong, test a different DisplayPort cable or connect that monitor to another device to determine whether the issue is the monitor, cable, or graphics output.

I checked the filter setting already, but I’ll try the shortcut and review the color profile and accessibility options again.