Setup (Details in screenshots at the end)
* Core i5 8600K @4.3Ghz
* 32GB RAM @4GHz
* RTX 3060
* 960gb Samsung Evo Nvme M.2
* Primary Monitor: LG 2560x1080 144Hz
* Secondary Monitor: Iiyama 1080x1920 (portrait) 60Hz
* PS5
* Avermedia LGX2
* OBS 27.1.3 64bit (newest stable as time of release)
* OBS started on secondary monitor
Recording settings:
* Canvas 1080p60
* NvEnc (new)
* CQP 15
* Keyframes 2
* Quality
* Lookahead and PsyVis Tuning on
* B-Frames 2
When I record with this (or stream, same issue happens there), sometimes frames get dropped. However, these drops do not show up in the OBS statistics.
I have a concrete example.
www.youtube.com
At second 10 you can see a handful of dropped frames. These are the OBS stats for this recording (text is in German, but it should be obvious):
No dropped frames on render or encoding.
The log for the session I recorded the video in is attached as 2021-10-16 08-40-06.txt
Curiously, when I set the canvas FPS to 59.97, the behavior changes a little. The recording goes on for a while perfectly, but then has a period of about 10 seconds, dropping straight to 29.985. With canvas FPS at 60, these drops happen more frequently, but are just intermittent as in the video.
The thing is: Recodring in Avermedia ReCentral works perfectly!
It does record in 59.97, but otherwise there are no dropped frames at all there.
So I truly though this is render or encoding in OBS acting up. But evidently, it's not.
I am stumped by this.
Why would this happen?
How can I debug and get rid of this?
Here a few screenshots about my system details:
* Core i5 8600K @4.3Ghz
* 32GB RAM @4GHz
* RTX 3060
* 960gb Samsung Evo Nvme M.2
* Primary Monitor: LG 2560x1080 144Hz
* Secondary Monitor: Iiyama 1080x1920 (portrait) 60Hz
* PS5
* Avermedia LGX2
* OBS 27.1.3 64bit (newest stable as time of release)
* OBS started on secondary monitor
Recording settings:
* Canvas 1080p60
* NvEnc (new)
* CQP 15
* Keyframes 2
* Quality
* Lookahead and PsyVis Tuning on
* B-Frames 2
When I record with this (or stream, same issue happens there), sometimes frames get dropped. However, these drops do not show up in the OBS statistics.
I have a concrete example.

PS5 OBS FPS drop - Second 10

No dropped frames on render or encoding.
The log for the session I recorded the video in is attached as 2021-10-16 08-40-06.txt
Curiously, when I set the canvas FPS to 59.97, the behavior changes a little. The recording goes on for a while perfectly, but then has a period of about 10 seconds, dropping straight to 29.985. With canvas FPS at 60, these drops happen more frequently, but are just intermittent as in the video.
The thing is: Recodring in Avermedia ReCentral works perfectly!
It does record in 59.97, but otherwise there are no dropped frames at all there.
So I truly though this is render or encoding in OBS acting up. But evidently, it's not.
I am stumped by this.
Why would this happen?
How can I debug and get rid of this?
Here a few screenshots about my system details: