Question / Help SLI Problem

[Hoerli]

Hello!

I have now 2x nVidia GeForce GTX 770 (4GB) with SLI and now i have problems with OBS.
The picture is jerky as frames would be dropped but I have 0.00% frames dropped.
You can find here a Broadcast: http://www.twitch.tv/zockertv/b/548835256

It helps for a certain time activate V-Sync for OBS in the nVidia-Systemcontrol.
Then the image is good.


I installed the newst BETA-Driver from nVidia (with the WHQL-Driver its not better :S).

Have somebody a fix for that problem?

 

[NotMeAgain]

I'm in the same issue.

There is no fix at the moment, and here is why:

OBS reads the frames from the GFX Card.
SLI uses something called AFR (Alternate Frame Rendering) where it shares the frames between cards, so at 60fps each card is producing 30~ frames.
You have two cards, OBS is reading only from one.
This means you are only seeing the output of one of your cards, and not the combined output from both.

Workaround:
What I am doing is using DXTory to output via DirectShow, and using OBS->Video Capture Device to do the encoding.

You do take a performance hit with this though.