Lightroom CC v9.4 and Macbook 16" Radeon 5500m 8 GB - No GPU for image processing

[SimonWe.]

Hello everyone,

I have purchased the current MacBook Pro 16", with the Radeon 5500m 8GB.

Unfortunately the field to activate the graphics card for image processing is greyed out. In my case the graphics card is only used for display. The Radeon 5500m is activated as soon as I use Lightroom, but unfortunately not for image processing.

Is this a normal behaviour, does Adobe have no drivers integrated or is this a strange behaviour of my computer - software combination?

Thanks

Simon

[GoldingD]

Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Past that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut as that is just so much dead space to us non-Techs.

[SimonWe.]

Thank you for your asnwe. I don´t have any graphic issues or broken pictures. I just want to get the max performance and don´t understand why on a top line laptop, Lightroom is not using the grafic card for full performance. MacOS and Lightroom are updatet

Lightroom Classic-Version: 9.4 [ 202008061458-dbb2971e ]
Lizenz: Creative Cloud
Spracheinstellung: de-DE
Betriebssystem: Mac OS 10
Version: 10.15.7 [19H2]
Anwendungsarchitektur: x64
Anzahl logischer Prozessoren: 16
Prozessorgeschwindigkeit: 2,3 GHz
SQLite-Version: 3.30.1
Integrierter Speicher: 32.768,0 MB
Für Lightroom verfügbarer phys. Speicher: 32.768,0 MB
Von Lightroom verwendeter phys. Speicher: 3.775,5 MB (11,5%)
Von Lightroom verwendeter virtueller Speicher: 13.280,6 MB
Cache-Speichergröße: 13,5MB
Interne Camera Raw-Version: 12.4 [ 555 ]
Maximale Anzahl Threads, die Camera Raw verwendet: 5
Camera Raw SIMD-Optimierung: SSE2,AVX,AVX2
Virtueller Speicher in Camera Raw: 2799MB / 16383MB (17%)
Physischer Speicher in Camera Raw: 2844MB / 32768MB (8%)
Monitore/Anzeigegeräte: 1) 3584x2240

Informationen zum Grafikprozessor:
Metal: AMD Radeon Pro 5500M

Anwendungsordner: /Applications/Adobe Lightroom Classic
Bibliothekspfad: /Volumes/Arbeitsplatte/XXXXXXXXXXXX.lrcat
Einstellungen-Ordner: /Users/simon/Library/Application Support/Adobe/Lightroom

Installierte Zusatzmodule:
1) AdobeStock
2) Aperture/iPhoto-Import-Zusatzmodul
3) Facebook
4) Flickr
5) JPEGmini
6) Nikon Tether-Zusatzmodul

[GoldingD]

And have you looked at:

https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

[GoldingD]

Recommend you post your problem over at the official feedback site, where Adobe techs respond.

https://feedback.photoshop.com/topics/lightroom-classic/5f5f2093785c1f1e6cc40872?cType=PROBLEM&page=...

[SimonWe.]

Thx, but i wonder if there is someone else with this problem. Because i could not solve it and i don´t understand the issue with a brand new laptop.

[SimonWe. · Accepted solution]

Thanks for all the help, I have now found a solution which did not work the first time:

1. restarting the computer
2. uninstall Lightroom via Creatic Cloud App
3. restarted
4. deleted all Lightroom files from the Library and Application Support
5. restarted
6. lightroom installed
7. lightroom started with Shift+Alt key

[John Pane]

Are you finding this was a permanent solution? Several months ago I followed the process you outlined and got it working. But now it is back to only using the GPU for basic processing.

This time I tried everything short of deleting the preferences because it is a major hassle to have to recreate those. That didn't fix it.

[Ian Lyons]

If resetting preferences fixes the issue, then that is the route you should go. Sure it's a PITA, but better that than denying yourself full GPU support. You could also submit a report on the Lightroom Classic feedback forum where it's more likley to catch the attention of Adobe QA https://feedback.photoshop.com/topics/lightroom-classic/5f5f2093785c1f1e6cc40872

[John Pane]

Well, I'm not sure it will work. PITA indeed.

I just discovered that Photoshop enables Advanced acceleration yet Lightroom does not.

[Ian Lyons]

That means the the GPU test that runs when LrC is launched is probably failing for some reason. I can't recall the exact details of what can causes the failure, but you can find the file(s) to delete at:

Users > ~ > Library > Application Support > Adobe > CameraRaw > GPU > Adobe Photoshop Lightroom Classic > 'Camera Raw GPU Config Text' and 'TempDisableGPU'. There may be a number at end of the TempDisableGPU file, but it can be ignored as it's the any file with that name that needs to be removed.

[John Pane]

Deleting that file fixed it! Thank you!

[Ian Lyons]

Please add the name of the file you deleted here and on the new thread you started on the Feedback forum as it will help others fix the problem, even if only temporarily, in future.

BTW, thanks for getting back to the forum

[John Pane]

I deleted this file:

~/Library/Application Support/Adobe/CameraRaw/GPU/Adobe Photoshop Lightroom Classic/TempDisableGPU2

[SimonWe.]

Yea, for me it works fine since then. Hope you will find a solution for your system!