diff --git a/hal/sdl2/app_hal.c b/hal/sdl2/app_hal.c
index 326c8282..72ba9bba 100644
--- a/hal/sdl2/app_hal.c
+++ b/hal/sdl2/app_hal.c
@@ -1,18 +1,17 @@
 #include <unistd.h>
-#define SDL_MAIN_HANDLED        /*To fix SDL's "undefined reference to WinMain" issue*/
+#define SDL_MAIN_HANDLED /*To fix SDL's "undefined reference to WinMain" issue*/
 #include <SDL2/SDL.h>
 #include "display/monitor.h"
 #include "indev/mouse.h"
 #include "indev/mousewheel.h"
 #include "indev/keyboard.h"
 
-
 /**
  * A task to measure the elapsed time for LittlevGL
  * @param data unused
  * @return never return
  */
-static int tick_thread(void * data)
+static int tick_thread(void* data)
 {
     (void)data;
 
@@ -24,52 +23,33 @@ static int tick_thread(void * data)
     return 0;
 }
 
-
 void hal_setup(void)
 {
-    // Workaround for sdl2 `-m32` crash
-    // https://bugs.launchpad.net/ubuntu/+source/libsdl2/+bug/1775067/comments/7
-    #ifndef WIN32
-        setenv("DBUS_FATAL_WARNINGS", "0", 1);
-    #endif
+// Workaround for sdl2 `-m32` crash
+// https://bugs.launchpad.net/ubuntu/+source/libsdl2/+bug/1775067/comments/7
+#ifndef WIN32
+    setenv("DBUS_FATAL_WARNINGS", "0", 1);
+#endif
 
     /* Add a display
      * Use the 'monitor' driver which creates window on PC's monitor to simulate a display*/
     monitor_init();
-    /* Tick init.
-     * You have to call 'lv_tick_inc()' in periodically to inform LittelvGL about how much time were elapsed
-     * Create an SDL thread to do this*/
-    SDL_CreateThread(tick_thread, "tick", NULL);
-
-    lv_init();
-    static lv_disp_buf_t disp_buf;
-    static lv_color_t buf[LV_HOR_RES_MAX * 10];                     /*Declare a buffer for 10 lines*/
-    lv_disp_buf_init(&disp_buf, buf, NULL, LV_HOR_RES_MAX * 10);    /*Initialize the display buffer*/
-
-    lv_disp_drv_t disp_drv;
-    lv_disp_drv_init(&disp_drv);            /*Basic initialization*/
-    disp_drv.flush_cb = monitor_flush;    /*Used when `LV_VDB_SIZE != 0` in lv_conf.h (buffered drawing)*/
-    disp_drv.buffer = &disp_buf;
-    //disp_drv.disp_fill = monitor_fill;      /*Used when `LV_VDB_SIZE == 0` in lv_conf.h (unbuffered drawing)*/
-    //disp_drv.disp_map = monitor_map;        /*Used when `LV_VDB_SIZE == 0` in lv_conf.h (unbuffered drawing)*/
-    lv_disp_drv_register(&disp_drv);
 
     /* Add the mouse as input device
      * Use the 'mouse' driver which reads the PC's mouse*/
     mouse_init();
-    lv_indev_drv_t indev_drv;
-    lv_indev_drv_init(&indev_drv);          /*Basic initialization*/
-    indev_drv.type = LV_INDEV_TYPE_POINTER;
-    indev_drv.read_cb = mouse_read;         /*This function will be called periodically (by the library) to get the mouse position and state*/
-    lv_indev_drv_register(&indev_drv);
-
 
+    /* Tick init.
+     * You have to call 'lv_tick_inc()' in periodically to inform LittelvGL about how much time were elapsed
+     * Create an SDL thread to do this*/
+    SDL_CreateThread(tick_thread, "tick", NULL);
 }
 
 void hal_loop(void)
 {
-    /*while(1)*/ {
-        SDL_Delay(5);
-        lv_task_handler();
-    }
+    // we don't use thise !!
+    // while(1) {
+    //     SDL_Delay(5);
+    //     lv_task_handler();
+    // }
 }