I use a i.MX6Q SabreSD to test the framebuffer.
I want to make a config that:
HDMI output @ 1280*720P - bpp=32bit
and a dummy output @ 480*800 - bpp=16bit(I only want to use the frame buffer content, to copy to outsie devices as projector ).
But whatever I config via command line or board***.c, the frame buffer color depth for the dummy device(ldb or lcd) always be 32bit(RGBA?)
How can I config it?