No video on full screen when i connect my laptop to tv

[Shankar_5]

When i connect my laptop to my tv i can see everything .. The problem is when i try to enlarge yhe video to full screen it shows a blcl screen but i can still see the subtittles and hear the audio

 

[Shankar_5]

MERGED QUESTION
Question from Shankar_5 : "Cant seem to watch videos on full screen when connected to my hdmi"

I can watch the videos when there are normal on my tv .. But when i try to maximize the screen it become blank but the subtitles and audio is working fine ..