Hello

I found an issue on the tech forum with GTX 660 and 650 videocards and would like to ask users with GTX670/680 to test it with older drivers(prior 306.xx), if it exist.

When watching frequently changing brightness video (any, youtube too) especially in full screen mode, appear artifact with lines and squares like in attached image. Seems not fixable, exist with all video players or presets for them. If it's hardware issue, then guess better to report to NVidia.

test video link (50 mb):
http://www.sendspace.com/file/clsugi

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i5-4690k, 16Gb RAM, GTX 1060 6Gb, X-Fi Titanium, Win7 x128
I am INFP, not the brutal, godamnit.

Got a 690 here, will take a look.

But since it's bi-gpu, i don't know what will happen.

I have a 670, will test later as well.

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Embers HD
Smoking Torches and Candles
Particle and Subsurface Scattering Patches for ENB (updated 17/1/2020)
flickr

I'm running 2 GTX670 in SLI. Can't reproduce the artifacts with media player classic or VLC.

On a side note there are a lot of people that are having various issues since Nvidia released the 310.70 WHQL drivers (not sure if they are to blame yet)

I'm suffering as part of this with MPC crashing, display drivers crashing and restarting, Skyrim crashing to desktop with both GPU temp's around 70-80 degrees, Firefox refuses to work at all, Chrome kind of works.

I tried all solutions I could find and currently have rolled back to 306.23 but still having these issues.

No response from NVidia as yet

I don't see any artifacting of this kind on my 670.... running 310.70 drivers currently, but don't remember seeing anything like this with older drivers.... will take a look later.

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2500k @4.3ghz - GTX670 - 8GB 1600mhz RAM - Win7 64bit

Ditto. I just checked the legacy drivers, and I've used every one of those available to 670 with no issues whatsoever. As a matter of fact I've never had any issues with any driver, not even the most recent ones.

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Embers HD
Smoking Torches and Candles
Particle and Subsurface Scattering Patches for ENB (updated 17/1/2020)
flickr

Hmm, probably the bug appear only with gtx 660/650 models then. Thanks for testing.

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i5-4690k, 16Gb RAM, GTX 1060 6Gb, X-Fi Titanium, Win7 x128
I am INFP, not the brutal, godamnit.

Tested GTX 660 with following drivers:
306.97-desktop-win8-win7-winvista-64bit-english-whql
310.61-desktop-win8-win7-winvista-64bit-international-beta
310.70-desktop-win8-win7-winvista-64bit-international

No problems displaying video with any version.

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Chan ENB