How to Change HiDPI Scaling Settings on Linux

For years, laptops and computer monitors have come with increasingly high-resolution displays. Text that looks great on a 1080p display can be too small and unreadable on a 4K one. Operating systems can upscale what's on-screen, but since 4K and other high-resolution screens come in many different sizes, there's no one-size-fits-all solution.

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