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PDN using 100% CPU when idle in background

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There's no good way for Paint.NET to detect that it's occluded (hidden) by another window that's on top of it. (I've tried!)


If you minimize Paint.NET then it will disable all animations and CPU usage will settle down to 0% very quickly.


In Settings, enabling hardware acceleration will also reduce the CPU usage in the situation you describe. It's usually enabled by default, but for some systems -- especially with certain Intel GPUs -- it is disabled by default. Rendering the selection outline is almost free with hardware, but often very expensive using software, especially on lower-end CPUs.

The Paint.NET Blog: https://blog.getpaint.net/

Donations are always appreciated! https://www.getpaint.net/donate.html


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