There is only a blank window while start gmsh in ubuntu system
This is a very strange question, whether downloaded directly from Website or compiled from source, only a blank window is displayed when executed.
And how to check and find out what problem with it? :(
The gmsh -info output is :
Version : 4.6.0-git-69eb3baf License : GNU General Public License Build OS : Linux64 Build date : 20201031 Build host : lu-ubt-desk Build options : 64Bit ALGLIB Ann Bamg Blossom DIntegration Dlopen DomHex Fltk Gmm Hxt Jpeg[fltk] Kbipack LinuxJoystick MathEx Mesh Metis Mmg3d Mpeg Netgen ONELAB ONELABMetamodel OpenCASCADE OpenCASCADE-CAF OpenGL OptHom Parser Plugins Png[fltk] Post QuadTri Solver TetGen/BR Voro++ Zlib FLTK version : 1.4.0 OCC version : 7.4.0 Packaged by : lu Web site : https://gmsh.info Issue tracker : https://gitlab.onelab.info/gmsh/gmsh/issues