I have a second monitor which is a Philips 1080p 40 inch TV (that I switch the HDMI inputs to alternate between cable and a second monitor).
When I play streaming video from YouTube on the monitor, the display blinks on and off continuously. This does NOT happen when using the Philips for TEXT displays (outlook, explorer, etc.)
The fix is easy.
First, make sure your second monitor (HDTV) is in “PC” mode. (This is not the fix in itself).
Secondly, I have the most current NVIDIA drivers installed.
Go to NVIDIA CONTROL PANEL (right click on an empty desktop)
Click ADJUST DESKTOP COLOR SETTINGS
click on your secondary monitor name (in my case, PHILIPS)
You will see a dropdown box appear.
Set “content reported to the desktop” to “Desktop Programs”.
Your secondary monitor should now be rock stable while watching videos.
let me know if this helped you!