Questions about game development on Linux operating system, for Linux or any other OS.

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SFML Stuttering issue with Linux

I wrote a little game of a bouncing ball, using SFML and Box2D. When running on Windows, the graphics animate smoothly. The problem is on my Linux machine. The animation stutters randomly. To be ...
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GLX/X11 Changing the rendering resolution

I have made a simple application that creates a window with an OpenGL 4.2 context and takes user input. I have implemented making the window go fullscreen with XRandR and can change the display ...
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Sometimes my game runs fine, other times it's shaky, why?

I'm trying to learn how to make games. I just did this very simple 3D game where you control a cube that shoots at incoming cubes. Sometimes I start the game and it runs smoothly from start to end. ...