Question / Help Only in Studio Mode - Frames Missed Due to Rendering Lag

M

MK1

New Member
I am relatively new to using OBS but I've managed to figure out almost everything for my stream to work the way I want it. I've been having one issue that I can't seem to resolve. When I am in studio mode, I seem to miss about 30-45 frames whenever I use any of the transitions (fade, cut, etc...). Checking the stats, I can see that the frames were missed due to rendering lag which made me doubt that my video card (MSI GTX 1060 3GB) is the culprit. I replaced with the much more powerful ASUS GTX 1070 8GB but did not see any changes. This happens even when I am neither streaming nor recording (even when I have both video capture sources off and I try to turn on the lower third media source for example). I have a very decent setup for what I am doing (i7-7700k, 16GB RAM, SSD hard drive). I am using 2x Hauppauge Colossus 2 video capture cards to capture video and audio from two camcorders.
The weird thing is that if I am not in studio mode, the transition is very smooth when I turn sources on or off or when I change their order. when I switch scenes, the fade is also very smooth and no frames are missed. The problem only seems to occur when I am in studio mode.

Any help/ideas are greatly appreciated.

Thanks!
 

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  • 2017-09-25 12-32-07.txt
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Fenrir

Fenrir

Forum Admin
The log you provided does not have a stream or record attempt in it.

Please post a link to a clean log file. To make a clean log file, first restart OBS, then start your stream/recording for ~30 seconds and stop it again. Make sure you replicate any issues as best you can, which means having any games/apps open and captured, etc. When you're done select Help > Log Files > Upload Current Log File. Copy the URL and paste it here.
 
Fenrir

Fenrir

Forum Admin
I assume there's no games or anything running on the PC while you ran that test, just the capture cards?

If you remove the capture cards (or try a new scene collection from the menu at the top of OBS to avoid having to set them back up later), does this issue still persist?

Hauppaugue cards in general are really, really awful and have terrible drivers. I'm willing to bet it's the cards themselves causing issues.
 
M

MK1

New Member
I will try that and let you know. It did take some back and forth to get them running in the first place. Just out of curiosity, what would be a better alternative? I could be going to a 3 or even 4 card setup in the future. I got the Hauppauge cards since they seemed to be top-rated on multiple sites.
 
N

ntoff

New Member
I have the same issue, dropped frames without recording or streaming. I've noticed if I change from one scene to another, OBS's fps will dip below 60 and the dropped frame counter goes up, but I'm not in studio mode and the preview is disabled. I tried removing my capture card (Avermedia, which isn't even in use for any of the scenes I switched to) and it didn't affect OBS at all (still dropped frames).

This is just sitting in windows, doing nothing, no games running, just switching from one scene to another quickly seems to be the most reliable way to reproduce my issue.

Should I post a log here or start my own thread on it?

upload_2017-9-30_8-50-15.png
 
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