Hi all. I have an Apalis iMX6 board with the Yocto's image with the working 'eglfs' and 'linuxfb' backends (without of X11 support).
I need to create a 'pure' QtWidgets application, where I need to use a real-time plotting with the Qwt library (using the Qt Quick is not an option, as there the QtCharts is not ready for usage) . But, I'm sadly surprised that a 2D painting takes ~100% CPU loading as with the 'eglfs' and as with 'linuxfb' backends. It is not an acceptable, because, e.g. on Desktop Linux/Windows it takes ~4-5% CPU loading. Is any workarounds for this? Maybe I need to re-build the Yocto's image to enable the X11 'xcb' support? BR, Denis
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