Hello carlos, I am using this on all our computers and I have no problem.
com-diffabs@diffabs6:~$ dpkg -l | grep silx ii python-silx 0.11.0+dfsg-1~bpo10+1 amd64 Toolbox for X-Ray data analysis - Python2 library ii python-silx-dbg 0.11.0+dfsg-1~bpo10+1 amd64 Toolbox for X-Ray data analysis - Python2 debug ii python-silx-doc 0.11.0+dfsg-1~bpo10+1 all Toolbox for X-Ray data analysis - Documentation ii python3-silx 0.11.0+dfsg-1~bpo10+1 amd64 Toolbox for X-Ray data analysis - Python3 ii python3-silx-dbg 0.11.0+dfsg-1~bpo10+1 amd64 Toolbox for X-Ray data analysis - Python3 debug ii silx 0.11.0+dfsg-1~bpo10+1 all Toolbox for X-Ray data analysis - Executables Could it be a problem with the OpenGL drivers on your computer ? Do you have a backtrace from gdb available ?