Enabling graphics acceleration grays out the brightest parts of the image

Question

[Windows 11 debugging help Qs]
I just moved up to a new computer. Before I had a 1080ti and enabling graphics acceleration made LRC so unusable that it was difficult to disable it again. OK, new computer, but same hard drive. I now have a brand new 7900xt graphics card, with brand new driver installed. Enabling graphics acceleration corrupts the image.
 
The best way I can describe it is that all the brightest parts of the image get lowered a gray, maybe a 75% gray.
 
Anyone seen this before? I have no idea what might be the problem. And yes, it's the most recent driver. Windows 11.
 
[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

Sameer K · Answer

Hey Ethan! Welcome to the Lightroom Community. I'll help you figure this out.

Have you enabled HDR in Lightroom Classic & Windows Display settings? Is your monitor connected via HDMI, or Display Port?

As you've switched from Nvidia to AMD GPU, you'll need to set up the HDR calibration of your OS again & re-enable HDR in your monitor's OSD settings.

Here is a similar conversation on a 3rd party forum that discusses this issue beyond Lightroom.

Let me know if this helps.

Sameer K

(Use '@mention' to tag me when you reply)

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