Did you adjust Video output settings
when only audio can be heard without images when a video file is played?
1. Blank screen occurs when a video file is played.
1. It is due to video player program settings.
How to fix
1. Run a video player program and right click to select Settings.
2. Select Video and change the video output from [Overlay Mixer] to [VMR9 Windowed mode].
Make sure the change has been made.