Question / Help Suddenly, Game Smooth, OBS Preview Choppy (Log Posted)

[rassy7]

I know, I've read through a dozen or so similar threads on this and I've tried everything mentioned in those so far, but nothing has worked so I haven't much choice but to post my log here and see if I'm missing something specific to me.

I have streamed and recorded with OBS Studio for a while and had it smooth as butter for both. For some reason, recently, and I can't put my finger on exactly when, OBS studio started rendering a choppy preview (and obviously that affects the program window as well). I'm not thinking rendering lag because when I'm in-game, I have plenty of available GPU and CPU, according to Afterburner usage numbers. I've tried numerous assortments of recommended settings, but none seem to affect the preview rendering.

Here is my latest log: https://obsproject.com/logs/adosruV0vbl45c6E

Please let me know if I'm missing something simple. I know my computer is capable of streaming/recording my games, but it's just not doing it right now.

Specs: GA-Z270XP-SLI; i7-7700K; EVGA GTX 1080 SC2 iCX; 32GB Corsair Vengeance LPX DDR4; Samsung 960 EVO Series M.2 SSD; WIN10; ASUS VG248QE; CV-1

Thanks for your help!

 

[koala]

What did you do with your computer right before the choppiness started? Did you install or change some program or driver, or did you open the case and did something on the mainboard, added/removed/changed some hardware? Revert this.

 

[rassy7]

Right. That was my first thought too. I can't think of anything I did, specifically. There was about a month-long period when I didn't use OBS. It worked at the beginning but not afterward. Funny thing is, I just recorded with Shadowplay and it's flawless so I know it must be something specific to OBS.

 

[rassy7]

If it helps, I have capped my frame rates at 60 and then 30 and neither has made any difference. In fact, with nothing else running, if I start up OBS, the FPS counter in the corner will start high, then immediately drop to around ~12 and hover there. Again, with nothing else running. This is all OBS, just the program itself. This makes no sense to me. GPU and CPU usage < 10% the whole time.

 

[koala]

Please get gpu-z and post a screenshot of the first tab. Look at the "Bus Interface" entry: this is the pci-express bus speed used by the mainboard. It has to be @ x16 (the x16 has to appear 2 times: one before and one after the @). If it is only x1 or x2, reseat the GPU-card and make sure it is in the slot nearest to the CPU. Usually, this kind of problem appears only after hardware assembly, but if the card is not correctly seated, it may also show up later.

If the bus speed is ok, take a different approach. Create a new profile (Profile->New) and create a new scene collection (Scene Collection->New) with exactly these menu operations. This results in a clean configuration by keeping your old settings in your old profiles/scene collections. Do minimal configuration in the new settings for recording and streaming, then add sources one by one. See if the issue only appears after adding some source.