PaddleStroke Posted July 12, 2019 Share 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 Link to comment Share on other sites More sharing options...
PaddleStroke Posted July 16, 2019 Author Share 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 I found that it seems that linux framebuffers have been replaced by DRM on mainline.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 ? Link to comment Share on other sites More sharing options...
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