I'm seeing "noise" in some objects drawn on the screen. See pic... the yellow circle ("shape") should be solid yellow, but instead includes red-orange horizontal lines. If the circles are rearranged the yellow circle can look correct, but the blue circle may have the lines instead - only lighter blue, not red-orange. Also, the button can include some horizontal lines when showing the "pressed" version. These lines can flicker a bit too.. possibly turning on and off very quickly.
What is causing this and what can be done to fix it?
There was some improvement when setting the Alpha to 255 (from 127) but problem still exists.
Screen is running at RGB565 - don't have enough RAM to run at RGB888. STM32H7a3. No RTOS. Interface is LTDC with DMA2D enabled (but I did try disabling DMA2D). Single layer... what else do you need to know?? Thanks!!
