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1 2 3 4 5 X Error of failed request: GLXBadContext Major opcode of failed request: 152 (GLX) Minor opcode of failed request: 6 (X_GLXIsDirect) Serial number of failed request: 39 Current serial number in output stream: 38 Reproduce: on compute canada, with singularity, installed mesa-utils, libgl1-mesa-glx. 1 2 3 4 python from vedo import Plotter v = Plotter() v.show() Solution: use --nv args in singularity shell command. Experience: the mesa requires nvidia graphical card to run correctly....