Question / Help OBS Studio GTX 1080 issues

[SebastianGross]

Hi guys! :)

Few days ago I installed both instances of this great program (classic and studio) but in the second one i can't choose my GPU to record my game. It seems like the program can't see the graphic card. Can you help me?

By the way, i am not interested in streaming, just recording for my YouTube channel. Any sugestions for the best video quality settings and constant 60 FPS. I tried few options but something went wrong, cause the image was lagging or the CPU ussages goes very high. My PC looks like this.

I7 6800K (3,7 Ghz OC)
MSI GTX 1080 Gaming X
G Skill Trident Z - 2x16 GB RAM (3200 mhz cl14)

I have 1440p monitor, but want to record in 1080p

Thank you very much for help

 

[Harold]

Simple output mode, indistinguishable recording quality, flv format, software low cpu use encoder.

 

[SebastianGross]

Ok, but how to make sure that the graphic card is recording by itself without CPU? Is it possible that the GPU will also encode the image? If I want my GPU to be responsible for all of the processes it must be Nvenc? Can it be H264?
I am sorry for such stupid questions, but before OBS I used to record in Nvidia shadow play without constant FPS. After recording all my movies were transfer to handbrake and it took me always a lot of time. I hope that the OBS is better and can do everything in one.

Thank you very much guys :)

 

[Harold]

You could change the encoder to nvenc, but with a 6800k, you don't need to.

 

[SebastianGross]

Ok, but why the program does not see my GPU? OBS classic recognize gtx 1080 instantly but Studio is blind ;P

If I take nvnec it will always be 100% on GPU, or is it still somehow supported by CPU?

 

[Harold]

Ok, but why the program does not see my GPU? OBS classic recognize gtx 1080 instantly but Studio is blind ;P

If OBS couldn't see your GPU, it would refuse to launch with an error about not having a supported GPU. The drop-down in the advanced settings is not yet implemented AT ALL.

If I take nvnec it will always be 100% on GPU, or is it still somehow supported by CPU?

Some functions cannot be removed from the cpu. Those will continue to run on the cpu rather than the gpu.

 

[SebastianGross]

Harold, thank you very much for all your help. I tested a lot of different options and now almost everything is very good, but I have a last question ! ;)

I have 2K monitor, and that is my resolution in the game. So in OBS settings in "video" panel this is my base image (2560x1440) My Output resolution is 1920x1080p

(By the way I decided to use Nvenc for recording which gives me better image quality)

When you go to the "output" panel, then go to "recording" properties there is an option "rescale output"

What is better? Play and record in 2k and then rescale image to 1080p or play the game in 2K but recording in 1080p without rescaling the output.

Thank you very much.

 

[Fenrir]

Harold, thank you very much for all your help. I tested a lot of different options and now almost everything is very good, but I have a last question ! ;)

I have 2K monitor, and that is my resolution in the game. So in OBS settings in "video" panel this is my base image (2560x1440) My Output resolution is 1920x1080p

(By the way I decided to use Nvenc for recording which gives me better image quality)

When you go to the "output" panel, then go to "recording" properties there is an option "rescale output"

What is better? Play and record in 2k and then rescale image to 1080p or play the game in 2K but recording in 1080p without rescaling the output.

Thank you very much.

The difference is moot. The rescale output option is there for if you want to split your recordings and streams into different resolutions. That way you can record at full resolution, and stream at a reduced resolution for bitrate constraints.