2020-08-13, 04:27 PM
Is accelerated graphics(open gl) turned on in display|advanced in opencpn settings? And turned on in the Pi settings?
cat /boot/config.txt | grep dtoverlay=
Should be 'dtoverlay=vc4-fkms-v3d' in there.
cat /boot/config.txt | grep dtoverlay=
Should be 'dtoverlay=vc4-fkms-v3d' in there.