"Alt" Key Brush Resize and Scrubby Zoom not working after 23.5 install

[Darren R. Metcalfe]

After upgrading to version 23.5 from 23.4.2, my Scrubby Zoom is greyed out and I am no longer able to adjust brush size using the ALT key on my keyboard and dragging the mouse.  I heard  there was an issue with this upgrade and some NVIDIA cards.  I assumed the 23.5.1 update would have solved the problem, but it still exists.  Uninstalling 23.5.1 and re-installing 23.4.2 makes things work like they should again.  I have reset my Preferences file with no success.  Is it time for a laptop with a more recent card?  I currently run a GTX 960M card in a Acer Aspire V Nitro laptop.

[Ged_Traynor]

Hi

Both are working fine for me with Photoshop version 23.5.1 on Windows 10 with an RTX3090 GPU and the latest Nvidia studio driver.

[kevin stohlmeyer]

What do your Performance preferences show for the GPU?

Does Photoshop show compatibility under Help>GPU Compatibility?

[Darren R. Metcalfe]

I assume you mean with 23.5.1 installed?

This is what it looks like with 23.4.2 installed.  I shall have to install the update again to see for sure, but I am fairly confident this box looked the same.