Tearing Effect - Arduino Giga Display

[Jens1985]

Hey, I've had the Arduino Giga Display for a few days now.

I'm trying to get it to work with the LVGL example. I have created a screen with two buttons. The screen is scrollable. When I scroll the screen, there is a tearing effect.

I would like to eliminate the tearing effect.

I have already enlarged the buffer and added a double buffer. lv_conf.h #define LV_MEM_SIZE (256U * 1024U)

Arduino_H7_Video.cpp

static lv_color_t * buf2;  
buf1 = (lv_color_t*)malloc((width() * height() / 4) * sizeof(lv_color_t));
buf2 = (lv_color_t*)malloc((width() * height() / 4) * sizeof(lv_color_t)); 
lv_disp_draw_buf_init(&draw_buf, buf1, buf2, width() * height() / 4);

I have also activated the DMA2D (aka Chrom Art) GPU. lv_conf.h

#define LV_USE_GPU_STM32_DMA2D 1
#if LV_USE_GPU_STM32_DMA2D
    /*Must be defined to include path of CMSIS header of target processor
    e.g. "stm32f769xx.h" or "stm32f429xx.h"*/
    #define LV_GPU_DMA2D_CMSIS_INCLUDE <stm32h747xx.h>
#endif

What else can i do to eliminate the tearing effect?

[iabdalkader]

Hi! Can you please post a full sketch to reproduce this issue, if it's still an issue ? I'm doing some fixes to the display and can take a look while I'm at it. Thanks!