viewing video from the pc to the tv connection using the hdmi port and it wont stop blinking

ashmorech

Honorable
Dec 29, 2013
4
0
10,510
I want to screen video from the pc to the tv screen and have the cord set in right spots. the video flashes in and out and when it stays connected for longer then 5 min it will have lines through it. How can I fix this?
 

ashmorech

Honorable
Dec 29, 2013
4
0
10,510
It is a desktop and this Is the 2nd tv/monitor try and a new cable.
If its a graphics card issue what would I do to try and fix or update that to make it stop flashing in and out?