Can't edit in Photoshop from LR Classic

[epeters5]

I just set up my SurfacePro 11 with the latest versions of Lightroom Classic and Photoshop. Everything installed fine and seemed to be working, until I found that I could not edit in PS from LR Classic. I uninstalled both, then re-installed PS again keeping preferences and then reinstalled LR Classic keeping preferences. The option for editing in PS is stil greyed out, and when I look in preferences in LR Classic to add an external editor, I do not see Photoshop, nor can I manually add it (as far as I can tell).  I have installed PS version 26; LR version 14.0.1 -- these were the most up to date from Creative Cloud.

My question - is this a bug in the new updates, or is there something I need to do, or is this related to the ongoing issues of LR not really working all that well with the new ARM Snapdragon processor? On my old 5 year old machine everything was working fine, albeit at the pace of molassas in a frigid Minnesota winter (though in fairnessm, not that my Denoise or Enhance works any faster on the new machine in LR Classic).

My computer data:

SurfacePro 11

Processor         Snapdragon(R) X 12-core X1E80100 @ 3.40 GHz   3.42 GHz

Installed RAM 32.0 GB (31.6 GB usable)

System type    64-bit operating system, ARM-based processor

My Windows 11 is up-to-date,

[Moved from ‘Bugs’ to ‘Discussions’ by moderator, according to forum rules.]

[KR Seals]

Where you were in External Editor in PS preferences, on the second line: Navigate to the PS 25 folder and select photoshop.exe. It will show up in "Edit In" as Photoshop.exe, not PS 25. If you selected the correct photoshop.exe, it should open PS 25.

Does that work?

[epeters5]

Thanks KR - I am not quite following your suggestion. I was trying to add an external editor in LR. It said that PS was not available. I had installed PS26. Do I need to change preferences in PS?

[KR Seals]

It's the very first line on the External Editing tab. Where it says "Photoshop Version" click on the chevrons at the right end of the line. You should be able to choose "Adobe Photoshop 2025" if PS 2025 is properly installed.

[epeters5]

Thanks KR. That was where I was looking to make the change and there was a message that Photoshop was not found. I uninstalled PS25 and then reinstalled it and still no recognition. That was what made me post. I used to have it on previous versions, but I have not been able to see it since I started my new computer - which made me think that it might be a Snapdragon issue since LR and PS work through emulation (or so it says when installing - not native - and not that I really track what that all means).  Does that help?

SurfacePro 11

Processor         Snapdragon(R) X 12-core X1E80100 @ 3.40 GHz   3.42 GHz

Installed RAM 32.0 GB (31.6 GB usable)

System type    64-bit operating system, ARM-based processor

[KR Seals]

I would give reinstalling LrC a try. That way, it sees PS as already installed.

Also, have you tried resetting the LrC preferences? That's a good idea anytime LrC is doing unexpected things.

[KKowalsky]

I have the exact sme issue with my surface pro snapdragon

[KKowalsky]

Look at the attached.  It actually sees photoshop running but still doesn't recognize it as the external editor (still grayed out).  Not sure what to do.  I do think this is a bug.  

[Janine3028009712q4]

HI. Did you find a solution to this? I've just bought a new laptop with snapdragon and have the same issue. I've installed and uninstalled both Lr and Ps several times and I still can't open Ps from Lr. I'm out of ideas.

[Conrad_C]

It might not be possible to troubleshoot a way out of this. At this time, Edit in Photoshop is not working in Windows for ARM.  Adobe says this in their help document Known issues in Lightroom Classic, if you scroll down on that page to where it says Windows ARM Issues. See picture below.

It is not clear when Adobe plans to enable Edit in Photoshop on Windows ARM devices.

I don’t know anything more than that, because I don’t actually have an ARM Snapdragon PC. (It works fine on my ARM computer, but that’s Apple Silicon, a whole different thing.)

But people are commenting about ARM Windows support in this Adobe thread:

Native Support for WOS/CoPilot/ARM Devices