Automatic Brightness in Plasma

Automatic brightness in Plasma Apr 24, 2026 As an exception to my usual posts, this time I’ll write about a feature that’s already released. Since Plasma 6.6, you can enable automatic brightness in the display settings… let’s take a look at how it works, and why it took so long to make it happen. The hardware This is where the problems start - most laptops unfortunately don’t come with a brightness sensor, and there’s effectively no monitors that have a built-in sensor either (let alone one that can be accessed by the connected PC).

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Excerpt limited to ~120 words for fair-use compliance. The full article is at Xaver’s blog.