Can Windows use separate color profiles for two monitors on different GPUs?
Asked 6/13/2014
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2 answers
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I’m building a photo-editing PC with two Nvidia cards: a Quadro K4000 and a GTX 680. I want to use two monitors with different gamuts: an NEC PA272W for Adobe RGB work and an LG 29UB65-P for sRGB.
Can Windows assign a separate color profile to each display, even if the monitors are connected to different graphics cards? Also, if both monitors were connected to the same card, would Windows force both to behave as sRGB, preventing proper Adobe RGB use on the NEC?
I’d also like to confirm that both cards can drive displays independently, rather than one only being used for GPU acceleration.
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
12y ago
2 Answers
1
Windows 7 (and other versions, probably) let you choose separate colour profile for each display. This can't be limited based on how displays are connected.
Whether the software which you work in will manage colour properly (i.e. will moving the windows containing the image to the other display preserve colour or will the image be displayed equally in display clone mode) depends on the software itself.
There is no reason to worry about second card not being able to display image separately. Windows had multiple GPU and display support at least since XP.
However, you might want to contact Nvidia support to know whether you will be able to use 10 bit output with GTX680 present in the system.
Originally by user49477. Source · Licensed CC BY-SA 4.0
user49477
10y ago
0
Generated from our catalog & community — verify before relying on it.
Yes. Windows supports multiple displays on multiple GPUs and lets you assign a separate ICC/color profile to each monitor. That is not determined by whether the displays are connected to the same graphics card or to different cards.
So, using an Adobe RGB display and an sRGB display in the same system is possible, and connecting both to one card does not inherently force everything to sRGB.
The important caveat is software: correct color appearance depends on whether your editing/viewing applications are color-managed. In properly color-managed software, each display can be handled appropriately using its own profile. Behavior such as moving an image window from one display to another, or using clone mode, depends on the application.
Also, both GPUs should be able to drive displays independently; the second card is not limited to acceleration only.
If 10-bit output is important to your workflow, check Nvidia’s documentation or support for the exact behavior of that feature in a mixed Quadro/GeForce setup.
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