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Portal 1 glitch?

post #1 of 11
Thread Starter 
I have just started playing Portal 1 and I am currently on chapter 12 in the test chamber but I am getting very annoying artifacting or something. It happens when I look upward toward the panels. The black mesh behind them starts flickering and then I start to see stretched out mesh squares and parts of the wall turn black and flicker. The flickering or flashing is very fast(5 flashes a second) and I can recreate this glitch over and over again. My GPU is running the latest drivers 275.33 and my temps are around 78c on load.

Tested with OCCT GPU and GPU memory test with no errors.

GTX 560 @ stock clocks


Edited by ///M3 - 6/12/11 at 7:32pm
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post #2 of 11
Did you google the issue? Check the valve forums.
    
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post #3 of 11
Thread Starter 
Yes, and I have found nothing like this issue. I'm thinking maybe because this is an older game and most people that are using the newer drivers are not playing this game from 2007
Justin-PC
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post #4 of 11
Try changing around the graphics settings.
    
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post #5 of 11
Thread Starter 

I tried changing every setting with no luck. I did do a search on YouTube for any problems with the 275.33 drivers and came up with this video. It is Crysis: 2 and not Portal but it is almost exactly the same thing I am seeing, albeit with different textures of course. The rapid flashing is identical!


Justin-PC
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post #6 of 11
From what i hear the 275.33 is less than stellar. Maybe try something earlier?
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post #7 of 11
Thread Starter 
It must be the drivers because I was able to test out another card and it does the same thing.
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post #8 of 11
I just loaded up Portal and tried that level and spot and saw no such thing with the same video card. This on driver version 270.61 though.
post #9 of 11
if you hadn't already said your temps I'd be sure that was a temp problem.
Failing that, it looks to be a problem with the way light reacts with textures, I get a similar thing with the lighting design software I use for my work.
Like people have said, try a driver clean and re-install an earlier driver ?

hope you manage to sort it mate
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post #10 of 11
ya driver issue looks like, best bet try several versions.. will take wile bites but only way
     
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