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Auto-Suspend Inactive X11 Applications To Reduce CPU And Battery Usage With XSuspender

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Graphics/Benchmarks
Software

XSuspender is a tool to suspend X11 applications when they are inactive. Its purpose is to reduce CPU usage, which in turn reduces the battery usage, and decreases the CPU temperature and fan noise.

The tool uses SIGSTOP, which prevents the process from obtaining further CPU time, or a custom shell script that you can specify, to suspend an application after its window loses focus. When the window regains focus, it's immediately resumed so you can continue from where you left off.

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Games: Aerofly FS 2 Flight Simulator, Amnesia: Rebirth, Vintage Story

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