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HELP! -- Diagnosing jagged, pixelated lighting effects

CragHack

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May 23, 2014
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I submit this is a pretty particular issue, but I've been experiencing it for more than a year now and am truthfully in desperation mode at this point. I'm open to all ideas, thanks in advance.

The problem is most prevalent in Dota2, where the darker textures on character models almost sparkle with jagged lines of light blue, almost like a pixelated oil spill, if that makes sense. I think that even not having played Dota, you should be able to see what I'm talking about in this image:
Ta1WNDO.png

On the black of her skirt, legs, and boots you can see it the most, and it looks significantly worse when the model is animated and worse still when viewed top-down during a game. This particular model practically radiates light blue pixels in-game.

The in-game video settings are of no help to me, and anti-aliasing is only a check box. Just for the record, the game's own dev forums have been of no help, and I have seen streams and screenshots of the game that do not demonstrate this issue. Any ideas what might cause this or how I might fix it? Let me know of any details or additional info you need from me.
 
What are you system specs? Have you updated your drivers? Have you updated DirectX?
 
Yes, I've just updated both my drivers and DirectX. Specs below:

OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
Processor: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz, Intel64 Family 6 Model 42 Stepping 7
RAM: 8167 Mb
Graphics Card: AMD Radeon HD 6800 Series, 1024 Mb
Hard Drives: C: Total - 114370 MB, E: Total - 1907726 MB
Motherboard: ASUSTeK Computer INC., P8Z68-V PRO
 
Do you have the raptr gaming app installed?
 
It sometimes installed with AMD drivers. Basically it has the ability to give you a "free performance boost" but it does this by monitoring games that you open and it has the ability to change their settings like remove AA etc so that it runs better. Also make sure that everything is default in CCC in the image quality/video quality tab and make sure their are no performance profiles for Dota2
 
Raptr seems only to optimize the video preferences within the game itself, which unfortunately changed literally nothing. My CCC settings are defaulted, no change.
 
ok then lets try to force it. in the Dota2 profile try forcing AA
 
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