Examples>LVGL>LVGL_Arduino_v9.ino

[Basitadam]

Hi all,

I am using Arduino_ESP32RGBPanel mode drive and lvgl 9.1, based on Examples>LVGL>LVGL_Arduino_v9.ino
Screens display OK, lvgl buttons, labels, positions appear to be correct sizes and colors.
I have couple of issues:

• When I enable DIRECT_RENDER_MODE , screen goes blank
• Changing full screen via lv_disp_load_scr(ui_Screen); causes flickering while transitioning
• Enabling capacitive touch (GT911) also causes screen flickering especially when touched

Any clues?

I am using ESP32-S3 with 8M OPI PSRAM and 16MB flash.
My lvgl configuration runs OK including touch with tft_eSPI and LovyanGFX libraries without a problem

Thanks in advance,
Tim

[Basitadam]

I found the reason for

• Changing full screen via lv_disp_load_scr(ui_Screen); causes flickering while transitioning
• Enabling capacitive touch (GT911) also causes screen flickering especially when touched
  Don't go higher than 16MHz for PCLK (prefer_speed)

Still testing for

• When I enable DIRECT_RENDER_MODE , screen goes blank