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Running Storyboard engine on an imx8 with OpenGL support

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Martin Glueck

Hi,

we are currently runnin gthe engine without OpenGL support on the framebuffer of an IMX6ULL.

Now, we try to switch to the IMX8-Nano. I have found two engines for the IMX8, one based on wayland and the oder I don't know.

I'm using a custom yocto build with X11 and xwayland enabled.

But I can't get the application to show anything on the screen....

I started the X server and than started the wayland based engine -> no image on the screen

When I try to start the engine without "wayland" in the directory name, than I get an error message that no rendered can be found.

Any tip would be highly appropriated.

Thanks,
Martin

1

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  • Avatar
    Eric Bergstrome

    Hi Martin,

    It might be that no wayland compositor was running when you tried to run the wayland-based engine. See if you can get weston running. Then try again with the wayland-based engine.

    Eric

    0
  • Avatar
    Martin Glueck

    Thanks, this was an interessting hint.

    I rebuilded the whole image and checked my setting for yocto.

    Now,when I reboot I see something on the screen (kind of status bar, need to check where this comes from).

    But, the SBE still does not work. Running it with -vvvv I see the following error message:
    WARN [0.116]:Unable to load plugin: /home/root/sbe/plugins/librender-plugin-opengles_2.0.so Error: /home/root/sbe/plugins/librender-plugin-opengles_2.0.so: undefined symbol: wl_egl_window_create

    I think that is the reason why it does not find any rendered.
    Do you have any idea what's missing in my build?

    Thanks.
    Martin

    0
  • Avatar
    Jamie Villeneuve

    Hi Martin,

    It may be that there is a missing symbolic link in the filesystem so the Crank library cannot find the Wayland library.

    The suggestion is to try adding a symlink as follows:

    ln -s /usr/lib/libwayland-egl.so.1.0.0 /usr/lib/libwayland-egl.so

    In some instances, this addition to the launcher script for imx8 might be needed on their platform.

    export LD_PRELOAD=/usr/lib/libwayland-egl.so.1.0.0

    Let us know if this helps.

    Thanks,

    -Jamie

    1
  • Avatar
    Martin Glueck

    Hi Jamie,

    these 2 tips did the trick.

    Thanks a lot. You guys saved my weekend ;-)

    Martin

    0

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