Configuring the Display Output for the Qt-Demo on i.MX6 with Debian (Kernel 4.9)
**Use the HDMI output on Headless i.MX6 Developer Kits for the Qt-Demo application
The Qt-Demo application is by default configured to run on the parallel display. To disable this output, add the following line on top of the file /boot/uboot_script in the Root Filesystem:
extra_args=video=VGA-1:d
The required BSP-Version is 2018-08-22 or recent.