I am trying to pull up a grahical Qt container on the Verdin imx8mplus with the Verdin development board with the 10.1 inch cap screen.
I am following the instructions here:
I did get the torizon screen shown plus I got the grey screen (without the bash terminal) as well, however, I need to demonstrate some graphics on it and need to run a QT container.
When I run the commands, I get the following error. Please can you let me know what is missing here, because I am basically expecting to run some moving graphics on the LVDS screen.
docker run -e ACCEPT_FSL_EULA=1 --rm -it --name=qt5 -v /tmp:/tmp -v /dev/dri:/dev/dri -v /dev/galcore:/dev/galcore --device-cgroup-rule=‘c 199:* rmw’ --device-cgroup-rule=‘c 226:* rmw’ torizon/qt5-wayland-examples-vivante:$CT_TAG_QT5_WAYLAND_EXAMPLES_VIVANTE bash
Unable to find image ‘torizon/qt5-wayland-examples-vivante:2’ locally
2: Pulling from torizon/qt5-wayland-examples-vivante
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Digest: sha256:4b288e3ee2283c8395a462b423250ff0359ceba3fd846fb30e0eb6e5186722b1
Status: Downloaded newer image for torizon/qt5-wayland-examples-vivante:2
root@1da693ae7e73:/# /usr/lib/aarch64-linux-gnu/qt5/examples/opengl/cube/cube &
[1] 6
root@1da693ae7e73:/# Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin “wayland” in “” even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
I assume the gray screen you’re referring to is Weston. Can you post the docker run command you’re using to run it before the Qt container?
root@1da693ae7e73:/# Failed to create wl_display (No such file or directory)
qt.qpa.plugin: Could not load the Qt platform plugin “wayland” in “” even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
This error can mean that in the application container some environment variables used to find the graphical server are not setup correctly.
These should be properly configured in our graphical containers, so it is strange that you’re running into this message. Inside the Qt examples container, can you verify with printenv that the following variables have these values?
Thank you for the information. The environment variables look correct.
Can you also inform the docker run command you used for the Weston container? Because I followed the instructions on the Qt article you referenced and I couldn’t reproduce your problem on my side using the Verdin iMX8M Plus on the same TorizonCore version (5.7.0): The example app works as intended.
