Hi Chaoyang Qin, there was still a fix to be done. Keep in mind that the display driver is in the staging tree and the quality is not assured. Please install this kernel: https://download.opensuse.org/repositories/home:/nsaenzjulienne:/fbtft-test/ARM/aarch64/kernel-default-5.1.16-3.1.g598180e.aarch64.rpm And use the overlay I'll attach following this message. To do so you have to: copy the file into '/boot/efi/overlays', and replace dtoverlay=rpi-display with dtoverlay=waveshare35a in your config.txt.