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Okay, I've done a completely clean install of OpenPlotter and updated OpenCPN to 4.99 and the CPU load problem has been resolved.
Now, if I can just get hostapd to work again...
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Having the same problem, updated rpi, Opencpn 4.99 installed running Ok, but no AP.
Running sudo systemctl enable hostapd.service results in:
hostapd.service is not a native service, redirecting to systemd-sysv-install.
Executing: /lib/systemd/systemd-sysv-install enable hostapd
No AP showing up in networklist at laptop, Network status in Openplotter shows hostapd stopped in info screen.
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Did you update the Raspian system first ? (sudo apt-update and then sudo apt-upgrade). Kernel update can also be done sudo rpi-update.
The problem is the version of the hostapd.
Bram
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it seems that there are network problems with latest kernel versions, working on it in v2.x.x
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In OP, I selected update OpenCPN, and I got version 5.0.0 !
The double canvas is simply fantastic !
And no more need of a keyboard to go Full Screen !
Like you guys I got the issue with hostapd, but the the recipe given by verkerkbr worked perfectly and solved the case. Thanks Bram !
I still have to test with open GL !
BTW, any one asking for an update of OpenCPN will probably meet that network issue ...
Cordialement
Didier B
Pi4, SSD USB3, OP 3.0 Touch SK 3.2.1 OpenCPN 5.8.4 : Thank you Thank you Thank you