Is there a way to adjust Nvidia color enhancements more precisely?

Vasllo · April 17

I'm trying to dial-in my two HDR monitors and OSD doesn't allow or apply color profiles in HDR mode, so it's all done through Nvidia Control Panel, the issue is, it seems to adjust color brightness every 2.5% (truncated to the lower integer), so I'm trying to dial-in the green brightness, but at 30% it's too low, at 32% it's too high, and I can't set it to 31%. Is there a way to do it through Nvidia Inspector or some config file?

OddOod · April 17

Have you poked through the nvidia-smi documentation?
https://developer.nvidia.com/nvidia-system-management-interface

Vasllo · April 17

3 minutes ago, OddOod said:

Have you poked through the nvidia-smi documentation?
https://developer.nvidia.com/nvidia-system-management-interface

Searching for color or enhancement on that doc didn't get any relevant results, have you ever used it for that? It seems to be more inclined to performance and hardware than driver adjustments.

OddOod · April 17

2 minutes ago, Vasllo said:

Searching for color or enhancement on that doc didn't get any relevant results, have you ever used it for that? It seems to be more inclined to performance and hardware than driver adjustments.

I haven't. NV isn't really in the business of color accuracy AFAIK, they leave that up to specialty software companies

Honestly, if you're doing this professionally, you should get a monitor with support for color profiles, if you're not, then just live with the fractional inaccuracy.

porina · April 17

The setting must be saved somewhere. I vaguely recall there was some software that could log all system activity, such as changes to registry, but I don't recall what it was called. Something like that could help identify it.

Alternatively, colour calibration solutions exist, consisting of a hardware colour sensor and software to create profiles for your display. More used where colour accuracy is important like creative uses. It isn't going to be a low cost solution.

Vasllo · April 17

1 minute ago, OddOod said:

I haven't. NV isn't really in the business of color accuracy AFAIK, they leave that up to specialty software companies

Honestly, if you're doing this professionally, you should get a monitor with support for color profiles, if you're not, then just live with the fractional inaccuracy.

I see. It's not for professional use, I'm not even using a calibrator (considered buying one, but not worth it), I'm just calibrating bit by bit by eye. Although it's noticeable when side-by-side with another unit more dialed in, this 1% won't bother me that much. I'll look for other pieces of software whenever I get the time, thanks any ways. Just wanted to extract the most out of these whitelabel monitors, but I can't complain about them for just ~US$ 450 (converted) for both.

2 minutes ago, porina said:

The setting must be saved somewhere. I vaguely recall there was some software that could log all system activity, such as changes to registry, but I don't recall what it was called. Something like that could help identify it.

Alternatively, colour calibration solutions exist, consisting of a hardware colour sensor and software to create profiles for your display. More used where colour accuracy is important like creative uses. It isn't going to be a low cost solution.

Yeah, that's what I was hoping to find, the registry or file to which this is written and hope the scale it uses allow for in-between values. Professional color calibration wouldn't be viable or worth it for me, it's not for professional use and would cost half of what I paid for both monitors.

porina · April 17

49 minutes ago, Vasllo said:

Yeah, that's what I was hoping to find, the registry or file to which this is written and hope the scale it uses allow for in-between values.

I think the first link below might be the software I was thinking of. The 2nd link I don't remember using but I've used their other software before in the distant past.

https://learn.microsoft.com/en-us/sysinternals/downloads/procmon

https://www.nirsoft.net/utils/registry_changes_view.html