Hi Chaoyang Qin I prepared a kernel with a possible fix. Could you install it and test it? https://download.opensuse.org/repositories/home:/nsaenzjulienne:/fbtft-fix/ARM/aarch64/kernel-default-5.1.16-1.1.g1127809.aarch64.rpm Note that after installing it's important to make sure you select the appropiate kernel in the Grub menu, it should be similar to the name of the RPM. Also, please provide the dmesg output.