Slow OpenCPN on OP4

[Spidgrou]

Hi everybody,
i've just installed the OP4, on my Pi4.
Same hw setup as with the OP2 and OP3.

With OP4, OpenCPN is extremely slower than before.
And I said before, same hardware, same charts.
Is there anythng that I can do to make it faster?

Thanks

[PaddyB]

couple of things you could check >
make sure the 3d driver is enabled, open a terminal ( in the accessories menu) and paste in

cat /boot/firmware/config.txt

This will show the contents of the context file, there should be a couple of lines which say >
# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d

Also make sure the opengl graphics is turned on in Opencpn, in Options/advanced, "use accelerated graphics" should be selected>



Hope that sorts it out for you 

[Spidgrou]

Hi PaddyB,
thanks for your advice, unfortunately I've already check them.

Yesterday, I checked my OpenCpn version and I saw that it was the: Debian/Ubuntu Backports: OpenCPN 5.8.4+dfsg-1~bpo12+1
I removed it and installed the: OpenCPN 5.8.4+8089+1637c28fb~ubuntu22.04.1

Look at the image.
I don't know what is the difference between the two, but it is a little bit faster than before.
Now it is almost usable.
I hope it become faster in the future as before.
 
Thanks

[PaddyB]

you could ask the developers on cruisersforum, someone might know something >
https://www.cruisersforum.com/forums/f134/