What to do if BenQ Portable shows 'No input source'?
- Aadam11Aug 31, 2025
If your BenQ projector displays 'No input source', first turn on the video source and check that the signal cable is connected correctly. If the input source is the USB-C port, make sure the source device supports DisplayPort and is connected to the projector with a USB-C Gen 3.1 cable. Also, ensure that the video or audio file format is supported by the projector.