Display The hardware connection between the baseboard and the MIPI screen is shown in the figure: Debian firmware boots into the XFCE desktop environment by default. Since the RV1126B chip lacks a GPU for hardware-accelerated rendering, the desktop environment uses the CPU for rendering. Therefore, under heavy workloads, display stuttering may occur. QT application screen redirection #Specify the QT output platform and make the screen rotate 90° clockwise export QT_QPA_PLATFORM=linuxfb:rotation=90 If the screen is distorted or does not display. Please check whether there is a problem with the LCD cable. Replacing the short cable with high-quality material can solve the distorted screen problem.