partial refresh between deep sleep

[allllo20]

I'm trying to make a clock with this display and an ESP32. But whenever the ESP32 goes to deep sleep I can't partially refresh the display. Try following example:

#include <GxEPD2_BW.h>

#define GxEPD2_DRV_CLASS GxEPD2_290_BS

#define DISPLAY_PINOUT 5, 17, 16, 4 //ESP32

GxEPD2_BW<GxEPD2_DRV_CLASS, GxEPD2_DRV_CLASS::HEIGHT> display(GxEPD2_DRV_CLASS(DISPLAY_PINOUT)); // DEPG0290BS 128x296, SSD1680


RTC_DATA_ATTR byte hrs = 0;
RTC_DATA_ATTR byte mins = 0;
RTC_DATA_ATTR byte tag = 1;
RTC_DATA_ATTR byte monat = 3;

RTC_DATA_ATTR int count = 0;
void setup()
{
  Serial.begin(115200);
  Serial.println(count);
  delay(100);
  display.init(115200,(count==0),50,false);
  display.setRotation(3);
  display.setTextColor(GxEPD_BLACK);
}


void loop()
{
  tag++; tag %= 31;
  monat++; monat %= 12;
  mins++; mins %= 60;
  hrs++; hrs %= 24;

  display.setFullWindow();
  display.fillScreen(GxEPD_WHITE);

  display.setTextSize(2);
  display.setCursor(28 + 20, 14); display.printf("%02d.%02d.23", tag, monat);

  display.setTextSize(5);
  display.setCursor(5 + 20, 46); display.printf("%02d:%02d", hrs, mins);

  display.display(count!=0);
  display.hibernate();
  count++;
  esp_sleep_enable_timer_wakeup(5 * 1000000ULL);
  esp_deep_sleep_start();
}