Lr works only on second video card (lags in develop)

[Bogdan38020750yyzd]

Hello! I have an Alienware x17, r1, i9, 64gb ram, rtx 3080, and lags in develop when going from one picture to another (3-4 seconds between photos). I found out that in preferences and system, that the gpu doesn't work: GPUDeviceEnabled: false

Direct2DEnabled: false

OGLEnabled: true (fallback = OpenGL)

I tried everything chatgpt suggested, including turning off the other video card, and the gpu is still not working in lr on the 3080. What should be the problem? How can I fix this?

[D Fosse]

This is a Lightroom question and you're in the Photoshop forum - but if you have Photoshop installed, open it and go to Help > System Info. Paste the whole thing in a reply. Photoshop's system info is a lot more comprehensive and useful for troubleshooting than Lr's system info, and it's easy to see if there's a problem in your GPU configuration.

Assuming you mean Lightroom Classic and not the cloud-based Lightroom - what does it say under Preferences > Performance if you set Use Graphics Processor to "custom"? Are all the boxes checked?

I suppose this should be moved to the correct Lightroom forum by a moderator.

[jane-e]

I suppose this should be moved to the correct Lightroom forum by a moderator.

By @D Fosse

Done!

I moved the post to LRC instead of LR because of previous posts from Bogdan.

Jane

[Bogdan38020750yyzd]

Hello!

Thank you very much!

[Bogdan38020750yyzd]

Hello! Yes Lightroom Classic. All the boxes are checked

[D Fosse]

Then your GPU is used as it should, and the problem is a different one.

Slow switching between frames in Develop is a common complaint and it won't be instant. It needs to run the whole processing pipeline and generate the preview before switching. We all see a tiny pause, but for some it seems worse than for others. You can try to clear the ACR cache and don't set the cache size too big.

OpenGL is phased out and not used any more. The entire graphics code has been migrated to DirectX (or Metal on Mac).

A very common problem is conflicting dual graphics. Unfortunately there is no way for the application (PS or LrC) to determine which GPU is called. All it can do is "send to GPU" and wait for the result to come back. This is a black box, entirely at the mercy of how the laptop manufacturer has configured the operating system and the two GPU drivers. That's why the official advice from Adobe is to completely disable the integrated GPU.