That's even stranger, there's gotta be something somewhere that's up
When using onboard the video is direct from the CPU internal graphics
When using a card the video comes from that
What type of file is it your trying to play?
Have you played with any setting on the TV?, I normally wouldn't think that's an issue but to me at least you shouldn't have the issue anymore
After a quick Google search it seems to be windows 8.1 problems
A few users said downgrading there Intel graphics to the previous version fixed it
Only strange thing was all them but one were using internal graphics so idk why it messes with a video card
Also its not just Asus boards, while trolling thru the many many forums on video lag in windows 8.1 I seen ppl with Asus, gigabyte and evga boards all having the issue with 8.1, most of them had 8 and it worked fine but once they go to 8.1 it becomes choppy, they go back to 8 and it plays fine again
The whole issue seems to be on Microsoft but they denied it
Some ppl went from 8.1 back to 8 and it fixed it
Some downgraded there graphics driver to a 9 version and said it fixed it
Some deleted there internal graphics and allowed windows to install the newest on reboot and they said it fixed it
Some said removing flash and java fixed it
Some said turning off vsync fixed it
Lol its literally apparently a wildly growing issue with 8.1
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