P: Crashes When "Dedicate to Graphics Tasks" Is Enabled in NVIDIA Control Panel

Lightroom Classic crashes immediately upon AI Masking (detect people) on NVIDIA RTX workstation

System: HP Z2 Workstation, NVIDIA RTX 2000 Ada Generation, Windows 11 Pro, Lightroom Classic 15.3

Problem: Lightroom crashed immediately as soon as AI Masking → Detect People was activated. GPU settings in Lightroom, catalog, drivers, and plugins were all ruled out as the cause.

Solution:

NVIDIA Control Panel → Manage 3D settings → Program Settings → Add Lightroom.exe → disable the "Dedicate to graphics tasks" setting.

After this change, AI Masking works completely stably without crashes.

Hope this helps others with the same problem.

Hey, @Eric32433661ok9r. Welcome to the Lightroom Community. Thanks for raising this. I can reproduce this, but I am unsure if it is a bug. 

Because, as per Nvidia's documentation (https://adobe.ly/465dkeF),

"NVIDIA Quadro Products

Dedicate to Graphics needs: In this mode, the GPU's resources are used for graphics processing.

Use for Graphics and compute needs (Enable CUDA compute): In this mode, GPU resources are allocated for both graphics as well as compute tasks."

Lightroom also uses GPU compute streams for its GPU-accelerated features and rendering. I've shared this with the team for review to determine whether it's a bug or by design.