Blocky bars in YouTube videos, only on Firefox

ravensfan852

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Jun 8, 2013
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Hello all,

Let me start off by saying I'm not sure if this is in the right section, and if not, I apologize...

I've had a recent problem that's become rather frustrating. When I watch YouTube videos on Firefox I get these blocky bars going all across the screen, almost like screen tearing, but you can see the individual blocks in the bars. There's no discoloration or anything, just this screen-tear effect. Unfortunately, when I do a print screen it doesn't seem to pick up the effect I'm seeing, but to describe it it's almost like you're looking at a tiled floor going down a hallway (a long, blocky rectangle, in a 2 x 20 grid). The effect goes horizontally across the screen.

I have recently gotten a new monitor which may be causing the issue, but it's the same refresh rate as my old one, and the effect only happens in Firefox.

Any ideas?
 

ravensfan852

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Jun 8, 2013
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18,540


I've tried that. I've also tried changing the 3D settings through NVIDIA control panel and updating drivers. Nothing I've seen seems to work.

 

ravensfan852

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Jun 8, 2013
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Update, the screen tearing only seems to be happening in full screen, and only in "fast moving" videos. I watch a lot of gaming videos so when someone rotates their camera it tears and gets the blocks pretty badly.
 

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