Hi everybody, I´m using Parabola GNU/Linux-libre, a 100% libre version of Arch Linux. It has the same packages, but filters the nonfree ones. I use the latest version of Plasma, which has give me a lot of trouble since 5.8, but the problem with the screenshots comes from before. When I run spectacle in an terminal, the output is the following (it´s in spanish)

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$ spectacle
mprotect failed in ExecutableAllocator::makeExecutable: Permiso denegado
Violación de segmento (`core' generado)

No matter I run it with sudo or logged as root, the problem repeats.

More about my PC

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$ uname -a
Linux parabola 4.7.6-gnu-201609301918-1-grsec #1 SMP PREEMPT Mon Oct 3 18:26:22 UYT 2016 x86_64 GNU/Linux

Thanks in advance!