Posted by gouessej on Dec 26, 2020; 6:58pm
URL: https://forum.jogamp.org/SOLVED-Purple-and-Green-Lines-Stripes-on-All-JOGL-Windows-tp4040923p4040927.html

Please try Xerxes' example too:
https://gist.github.com/xranby/ccbcfcaef341f5bd1ba8