Backlight intensity set at 50% shows random pixels at startup/init

[JoDaNl]

During power-up my code calls smartdisplay_init() to set-up the display.,
At that moment in time the display buffer contains random pixels...and the display is set to 50% intensity.

smartdisplay_lcd_set_backlight(0.5f);

This causes at startup a visible flicker of the display.

My preference would be:

• smartdisplay_init() sets the lcd-backlight to 0.0 , so off
• after the first call to lv_timer_handler() the display-buffer contains valid information
• I then set (once) the lcd-backlight to 1.0 i.e. 100%

This gives a visually better start-up of my system.

regards, Jos

[rzeldent]

Maybe clearing the screen and then enabling the backlight? That could be a simple compromise?