GHA
Well-known member
Just been released, an updated driver for the hard openGL graphics. For a little while raspian has had an experimental openGL driver - sort of worked but a bit unstable.
This one seems much better, but still not perfect.
To get it going in raspian openplotter..
Update the kernel - but backup /boot/config.txt first, the update seemed to delete that, it's pretty important!
sudo rpi-update
Then boot up and see it /boot/config.txt is there and isn't empty, copy the backup over if need be.
reboot
Go into preferences | old-raspi-config and select advanced options, then down button to find the AC - GL driver and select, reboot again.
Now in /boot/config there will be a line "dtoverlay=vc4-kms-v3d"
Change that to "dtoverlay=vc4-fkms-v3d" (tip - in a terminal type "sudo leafpad" to open the text editor so you can save the file, otherwise it's read only)
Reboot and in OpenCPN options - display| advanced turn on "Use advanced grqphics"
Seems stable with cm93 charts, though crashes instantly using .KAP files made from google earth.
Much faster with cm93, like loads faster and stable so far.
The old driver seemed to make a mess all over the place as well, this one seem OK.
This one seems much better, but still not perfect.
To get it going in raspian openplotter..
Update the kernel - but backup /boot/config.txt first, the update seemed to delete that, it's pretty important!
sudo rpi-update
Then boot up and see it /boot/config.txt is there and isn't empty, copy the backup over if need be.
reboot
Go into preferences | old-raspi-config and select advanced options, then down button to find the AC - GL driver and select, reboot again.
Now in /boot/config there will be a line "dtoverlay=vc4-kms-v3d"
Change that to "dtoverlay=vc4-fkms-v3d" (tip - in a terminal type "sudo leafpad" to open the text editor so you can save the file, otherwise it's read only)
Reboot and in OpenCPN options - display| advanced turn on "Use advanced grqphics"
Seems stable with cm93 charts, though crashes instantly using .KAP files made from google earth.
Much faster with cm93, like loads faster and stable so far.
The old driver seemed to make a mess all over the place as well, this one seem OK.
