Color Banding on Custom Yocto Build
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Hello,
i'm experiencing color banding of our qt app on a Toradex iMX 6 module with an attached parallel lcd display:
Desktop:
Embedded:
It worked with the previous version of boot2qt (+older version of qt), but after upgrading our yocto system to dunfell with a custom layer, we are now experiencing color banding and can't figure it out why. The video kernel cmdline looks like this and is the same as in our previous system:
video=mxcfb2:dev=lcd,FusionF07A,if=RGB24I've tried getting debug output, but exporting QT_QPA_EGLFS_DEBUG and starting our app afterwards yields no different output. The only warning i get is this:
QEglFSVivIntegration will set environment variable FB_MULTI_BUFFER=2 to enable double buffering and vsync. If this is not desired, you can override this via: export QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1Any idea how i can tackle this issue?
Thank you very much in advance.
Best regards,
Kevin