Hello Gulfstream, are you by any chance running the proprietary nvidia drivers?
I guess the output of following commands could be helpful for the maintainer to diagnose this issue. Could you run them and forward the output to this bug? which freecad ldd /usr/bin/freecad dpkg -S /lib/x86_64-linux-gnu/libOpenGL.so.0 dpkg -S /usr/lib/x86_64-linux-gnu/libOpenGL.so.0 ls -lisah /lib/x86_64-linux-gnu/libOpenGL.so* /usr/lib/x86_64-linux-gnu/libOpenGL.so* dpkg -l | grep libopengl0 dpkg -l | grep libglvnd Kind regards, Bernhard