Sometimes layers won't display correctly. GPU maybe?

Question

Hi, all.

The above happens now and then. I'll create a new layer (i.e. fill with 50% grey, set to Overlay) but the display will only show the gray and not the correct blending mode. Usually, happens when Photoshop has been running a while and/or have multiple docs open or even a duplicate view of the same file. Can my GPU not handle driving my two monitors (settings attached)? Do I need to allocate more RAM? Is this software related? Thanks!

Photoshop 23.4.1, Windows 10,

TheDigitalDog · Answer

First, try disabling GPU in the Preferences (Performance tab). Any better?
You can try this too: in Preferences>Technology Previews, check the box 'Deactivate Native Canvas' and uncheck 'Enable Native Canvas Rulers' options, then restart Photoshop. Does this work?
If not, recalibrate and build a new ICC display profile, the old one might be corrupted.
If you are using software/hardware for this task, be sure the software is set to build a matrix not LUT profile, Version 2 not Version 4 profile.

If turning OFF GPU works, it's a GPU bug and you need to contact the manufacturer or find out if there's an updated driver for it. On the Mac, that's part of the OS update(s) so if this is the latest OS version, you may need to roll back a release.
Also see: https://helpx.adobe.com/photoshop/kb/acr-gpu-faq.html

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