Blackmagic Forum

If Nvlink/SLI is ON on 2070 Super Dual, the playback performance is really nealry half.

If is switch off SLI/Nvlink, its fast again.
I suspect that it uses now Nvlink or has troubles with Nvlink because Resolve 16 was ok.

BUT, I can't switch it off and on every time I use Resolve, because I use other apps that make use of NVlink like Octane Render and Blender.

Even if I disable SLI just for Resolve from the Nvidia Control Panel, it's not fixing it.

We need a switch that says, don't use NV link/SLI in the Resolve Settings.

And yes I use the newest Studio Driver and latest Win 10.

@BMD ist there any config settings command line i could use to disable NVlink use ?

This is a known issue, and we are investigating this.

Ok, issue is fixed after i installed the last Studio Driver that arrived 2 days ago.
Now, Resolve shows in the details of the GPU explicitly "Main Display GPU, NVlink", which it didnt before. Thanks for your answer,

Still making a switch in Resolve at the GPU settings that can disable NVlink use would be really great.

Does NVLink offer any performance boost to DR? Or does it slow it down?