Dear all,
we use custom board with STM32MP1 SoC onboard. We use Yocto with OE, STM, Qt and custom layers for building target images.
In our device we utilize 7-inch display connected by LVDS with RGB666 wiring. If I load bitmap image from U-boot, all colors are fine, so I suggest, display wiring is correct. But if I load the same bitmap from Linux, some colors are spoiled. For example, grey colors (like 0xA0A0A0 in RGB888) become green (attachment: grey.bmp is original bitmap, grey.jpg is a screen photo). This is not a Qt issue, as I get the same result using Plymouth splash screen or Gstreamer tool for loading bitmap files.
What might be the culprit ? Any help or hint is appreciated.