P: Photoshop Update 27.9.0 Washes Out Image Exports

t

Thank you for your help

I am having the exact same issue since the update to 27.9

It was already actually uncheck

Sorry, it turns out that I’ve given you incomplete or wrong information. (I’m not a Mac user)
If the box is unchecked, you should check it, and then restart Photoshop.
See the highlighted reply by Adobe employee ​@cody_cuellar here:
 

Moderators, @Mohit Goyal,  please merge this with the following existing post:

Photoshop Update 27.9.0 Washes Out Image Exports | Adobe DME

This sounds like a sync or color management issue. I'd start by checking that both Lightroom and Photoshop are on the latest version, then try "Edit a Copy with Lightroom Adjustments" instead of opening the original. If it still happens, sharing your Lightroom/Photoshop versions and whether you're using Lightroom Classic or Lightroom CC will help others pinpoint the cause.

It is a known issue on the Mac. In Settings go to Technology Previews  and uncheck* ‘Precise color management for HDR display’. *If already unchecked then check it.  Click OK then close and restart Photoshop.


Dave

Summary:

After updating to Photoshop 27.9, all RGB documents appear washed out/desaturated on screen when Use Graphics Processor is enabled. The issue affects both existing files and brand-new RGB documents. The image data is not affected—exported files display correctly in other applications.

System:

MacBook Pro with Apple M3 Max
Built-in Apple XDR Display
Photoshop 27.9
Photoshop 26.11 (2025) installed on the same machine does not exhibit this issue.

Steps to reproduce:

Launch Photoshop 27.9.
Ensure Preferences → Performance → Use Graphics Processor is enabled.
Open any RGB document or create a new RGB document.
Observe that the canvas appears washed out/desaturated.
Disable Use Graphics Processor and restart Photoshop.

Expected result:
The document should display with accurate colors, matching previous Photoshop versions and the exported image.

Actual result:
The canvas appears noticeably washed out. Exported files are correct and display normally in Preview and other applications. Disabling Use Graphics Processor immediately restores the correct on-screen appearance.

Additional troubleshooting performed:

Confirmed Color Settings are default and unchanged.
Tested with brand-new RGB documents.
Toggling GPU Compositing did not resolve the issue.
Proof Colors changes the appearance but is not a workaround.
The problem occurs only in Photoshop 27.9. Photoshop 26.11 on the same Mac, using the same display and color settings, renders correctly with GPU acceleration enabled.

After updating to Photoshop 27.9, all RGB documents appear washed out when GPU acceleration is enabled. Exports are correct. Disabling "Use Graphics Processor" fixes the issue. Photoshop 26.11 on the same Mac does not have this problem.

Precise color management suggested by Srishti Bali did not change anything for me. The only thing that worked was disabling the graphics processor.  Hopefully that is only a temporary solution and a fix is in the works. 

(Apple Mac Studio M2 Max 96gb mem Tahoe 26.5.2 - PS Beta 27.10.0 & LRC 15.4.1, Camera Raw 18.4)

Reverting back to 27.8 seems to work for me while keeping GPU processor going.