Shouldn’t the BL_ON wait until pixel data and clock signals are stable, before going active?
It appears to go active immediately at power on, resulting in a brief (100-200ms) flash of white on my LCD before splash screen is displayed.
Just as on Colibri Ev Board 3.2B, I wired BL_ON to drive the PWRDWN pin on the LVDS driver, as well as the enable pin on my backlight driver.
Same components as your ref design.
I use the default BL_ON pin SODIMM-71.
Colibri VF61 1.2A,
CE6 image 1.5
Bootloader is from same package
(how can I tell bootloader version after it’s installed???)