In the latest version of Raspbian, when no display is connected to the HDMI port, "tvservice -n" finds a display named "Unk-Composite dis". Therefore, the `distant_display` was not created.
In the latest version of Raspbian, when no display is connected to the HDMI port, "tvservice -n" finds a display named "Unk-Composite dis". Therefore, the `distant_display` was not created.