Package: freecad Followup-For: Bug #933876 I solve this problem by myself.
Open a terminal window,and type this command: export SVGA_VGPU10=0 then click "enter" on the keyboard. Now open the FreeCAD again.It works. I just find that this problem only happens in VMware virtual machine. Please help me label this bug report "Resolved".Thanks Debian team. -- System Information: Debian Release: 10.0 APT prefers stable APT policy: (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-5-amd64 (SMP w/2 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages freecad depends on: ii freecad-python2 0.18~pre1+dfsg1-5 Versions of packages freecad recommends: ii calculix-ccx 2.11-1+b3 ii graphviz 2.40.1-6 Versions of packages freecad suggests: pn freecad-doc <none> pn povray <none> pn python-collada <none> -- no debconf information