Failed to start recording - Nvidia NVENC AV1 OBS 29.0.2

[Sadox]

Hello,

I am having an issue while trying to record with NVENC AV1 encoding on a 4090 and the 29.0.2 OBS build. The log file is attached.

What I already tried:
- Clean re install of drivers (using DDU)
- Clean reinstall of OBS - deleting all settings and scenes etc.

Recording with NVENC HEVC is working just fine. Does anyone know a work around?

 

[R1CH]

The log only shows you opening OBS, you need to reproduce the problem before uploading a log.

 

[Sadox]

The problem then does not seem to create log entries. I tried recording a couple times with each log looking the same. Nonetheless for the following log I did the following:
-Start OBS
- Try to start recording with AV1 (Error)
- Go to settings and change encoder to HEVC
- Record some seconds
- Go to settings and change back to AV1
- Try to record (Error)
- Close OBS

If in this log nothing relevant is written, then I really don't know how to provide the necessary information.

 

[rockbottom]

Try disabling rescaling on the Recording Output.
12:44:23.668: [jim-nvenc] scaling enabled, falling back to ffmpeg

 

[Sadox]

That worked thank you! Now the question is: how do I get 1080p recordings without using the rescaling option under "recording"?

 

[rockbottom]

You already have it set in the Video settings

12:43:43.882: video settings reset:
12:43:43.882: base resolution: 3840x2160
12:43:43.882: output resolution: 1920x1080
12:43:43.882: downscale filter: Lanczos
12:43:43.882: fps: 60/1
12:43:43.882: format: P010
12:43:43.882: YUV mode: Rec. 2100 (PQ)/Partial
12:43:43.882: NV12 texture support not available
12:43:43.882: P010 texture support enabled

 

[Sadox]

Seems like. Thank you again :)