OP4 Headless empty or black screens

[sandervd]

Hello, I am running a fresh OP4 install on a Raspberry 5 with the MacArthur Hat and an ICM-20948. Packages are updated to the latest (4.0.7 for Pypilot). The IMU seems to be working alright, data in SignalK seems logic and correct.

I am running a headless install and usually connect with Raspberry Connect or VNC. 

When I do this, some of the Pypilot graphics don't seem to rendered; specifically the calibration and scope ones. I have no monitor, so I am unable to see if this is due to the headless installation.

I have posted some screengrabs here: https://imgur.com/a/qN5WoPU

Happy to help troubleshooting. Thanks!

[seandepagnier]

That is a bit strange indeed! It seems to render the boat which is using opengl but not the plots.

If you run "pypilot_calibration" from the terminal, is there any useful text output?

Then there are no settings!!

Is there any chance you can pull pypilot from git and install locally (assuming you have a linux machine) then run "pypilot_calibration" and see if it renders?

[sandervd]

Thanks for the swift reply, Sean. Appreciate your help.

Here's the output:

pi@openplotter:~ $ pypilot_calibration
failed to load pywavefront: Cannot connect to "None"
Unable to access the X Display, is $DISPLAY set properly?

Happy to pull from git and try again, but I need some help with the commands. Do I follow these steps?:

git clone https://github.com/pypilot/pypilot
sudo python3 setup.py install

---

Sean, I think I found the culprit. It's Wayland.

I did switch to Wayland (via the Openplotter settings app) since running Openplotter Headless was extremely laggy.

I have now switched back to X11 and the Accel and Compass screens are now working. Scope however and Settings remain blank.

[holgerw]

@sandervd
so we have to wait for wayland compatible version.

thanks for finding out.

how