Hi @gntech.
I guess this confirms there is some issue concerning graphic driver/stack involved. I searched a bit and it does look like a lot of users are affected by this. This will likely result in a fix/workaround being applied upstream (Mesa or Xorg or wherever it is needed) a bit sooner. And thanks for sharing the workaround. I am sure in the following months more FreeCAD users will emerge and suggesting to disable DRI3 support with environment variable will likely do it for them too.
gntech wrote: ↑Thu Apr 12, 2018 4:30 pm
Or to disable DRI3 just for Freecad by launching freecad from the terminal with the following command.
Note that you could modify the FreeCAD launcher. Like we did back in the days when pixel bufferers were trending:
https://forum.freecadweb.org/viewtopic. ... 503#p27326