New window briefly appears and then closes immediately

[virtualabishek]

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When I run my OpenGL GLUT program, a new window pops up for a split second and then disappears immediately.

What I’ve tried:

• Checked that $DISPLAY is set correctly and confirmed X11 forwarding works (e.g., xeyes runs fine).
• Installed x11-apps and verified other X11 apps run normally.
• Verified that freeglut is installed (tried to install but had package issues).
• Ran the program with glutMainLoop() but the window still closes immediately.

Any help or suggestions would be appreciated!

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[launchforgedev]

The issue is NOT random
It is ALWAYS one of these:

❌ Missing glutMainLoop() → program exits
❌ OpenGL not working in WSL
❌ GPU acceleration issue → fix with software rendering