PaddleStroke Posted July 12, 2019 Posted July 12, 2019 Is anyone know how to set HDMI and LCD simultaneously on mainline kernel? We use a 3.5" LCD for which we made a patch (see enclosed). Now I'd like to have both HDMI and LCD showing the same framebuffer. Currently HDMI is only showing the console while signal is OK on LCD. Any hint would be appreciated. u-boot-sunxi-next.patch kernel-sunxi-next.patch
PaddleStroke Posted July 16, 2019 Author Posted July 16, 2019 What is the difference between TCON, framebuffer, pipeline, front end, display ? I found that it seems that linux framebuffers have been replaced by DRM on mainline. But can't find much information about this. https://www.kernel.org/doc/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt Anyone familiar with framebuffers/display/... can give me the big picture on how this is organized ?
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