Δοκίμασε τα παρακάτω:
Solution:
In the dialog Graphics performance (GRAPHICSCONFIG), disable the option Smooth Line Display (the Details button). Or switch it off by setting the system variable LINESMOOTHING (set to 0). In AutoCAD 2016 and higher, you will need first to disable high quality geometry (the dialog Graphics performance or the system variable HQGEOM), only then you can deactivate line smoothing. AutoCAD for Mac 2015 does not expose the LINESMOOTHING variable so you cannot apply this solution there. In DWG TrueView, use the status bar button to invoke graphics configuration.
Disabling hardware acceleration will also solve it.