GPU Acceleration (processing) first worked, now its grayed out!?

[eagle_610]

Hello community, 

i own an iMac 2014 ultimo with max specs. The Radeon R9 295X is metal-compatible and for 4 weeks after release I was surprised over the great performance with the GPU boost image processing. However, I had to manually activate it with the custom settings.

Now After the 8.4.1 Update I cant use the GPU anymore. So I downgraded to 8.4 and surprisingly it doenst work also, its grayed out. Im 100% sure it worked fine before, so i dont know where the problem is. 

Can you help? 

Have a nice one and thank you.

[nikunj.m]

Hi there,

The option to use the Graphic processor for image processing has been recently added to Lightroom classic in version 8.4. Prior to this, till version 8.3.1 the option for only available for Graphic acceleration. Please check the below mentioned link.

https://helpx.adobe.com/lightroom-classic/help/whats-new/2019-4.html

Would you mind sharing the macOS version that you are currently using and check if there is an update available for the macOS since the drivers of Graphic cards on Mac are installed with the OS updates.

Regards

Nikunj

[eagle_610]

Im using the latest Version mac OS 10.14.6 and the Graphic processor for image worked fine in Lightroom 8.4 for about 4 weeks. After the 8.4.1. Update i cant use the "Graphic processor for image" (option is grayed out). A downgrade back to v8.4 didnt help here. MacOS version wasnt updated in meantime (its still the latest). Is this a Bug?

Lightroom Classic-Version: 8.4.1 [ 201909111355-eb9b68f0 ]
Lizenz: Creative Cloud
Spracheinstellung: de-DE
Betriebssystem: Mac OS 10
Version: 10.14.6 [18G95]
Anwendungsarchitektur: x64
Anzahl logischer Prozessoren: 8
Prozessorgeschwindigkeit: 4,0 GHz
Integrierter Speicher: 32.768,0 MB
Für Lightroom verfügbarer phys. Speicher: 32.768,0 MB
Von Lightroom verwendeter phys. Speicher: 1.884,4 MB (5,7%)
Von Lightroom verwendeter virtueller Speicher: 6.296,0 MB
Cache-Speichergröße: 109,3MB
Interne Camera Raw-Version: 11.4.1 [ 291 ]
Maximale Anzahl Threads, die Camera Raw verwendet: 5
Camera Raw SIMD-Optimierung: SSE2,AVX,AVX2
Virtueller Speicher in Camera Raw: 288MB / 16383MB (1%)
Physischer Speicher in Camera Raw: 289MB / 32768MB (0%)
Monitore/Anzeigegeräte: 1) 5120x2880

Informationen zum Grafikprozessor: 
Metal: AMD Radeon R9 M295X



Anwendungsordner: /Applications/Adobe Lightroom Classic
Bibliothekspfad: /Users/osman/Pictures/Lightroom/Lightroom.lrcat
Einstellungen-Ordner: /Users/osman/Library/Application Support/Adobe/Lightroom

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

Config.lua-Flags: None

AudioDeviceIOBlockSize: 512
AudioDeviceName: Ausgang (integriert)
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 44100
Build: 12.1x4
CoreImage: true
GL_ACCUM_ALPHA_BITS: 0
GL_ACCUM_BLUE_BITS: 0
GL_ACCUM_GREEN_BITS: 0
GL_ACCUM_RED_BITS: 0
GL_ALPHA_BITS: 8
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_UNITS: 8
GL_MAX_VIEWPORT_DIMS: 16384,16384
GL_RED_BITS: 8
GL_RENDERER: AMD Radeon R9 M295X OpenGL Engine
GL_SHADING_LANGUAGE_VERSION: 1.20
GL_STENCIL_BITS: 8
GL_VENDOR: ATI Technologies Inc.
GL_VERSION: 2.1 ATI-2.11.20
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[spinningstill]

I am having the same issue.  Did an event and my computer's fan is going going.  Not a usual activity.  I cannot use the on board graphics.  This is a key issue.  Seems odd to me that Adobe allows these things to happen.

2015 MBP with Metal Iris Pro.

Grace and peace. 

[DdeGannes]

Ok, so you are using macOS 10.14.6 and LrC 8.4.1?

LrC does not support GPU for all systems and graphic cards.

Another point that is relevant is there was an update in LrC 8.4 to the GPU feature that may be the cause of the change that you experience. 

• 8.4 (August 2019) – Advanced GPU Improvements, Batch HDR/Panorama Merges, Book Auto-Create Cell, Export as PNG, Collection panel Color Labels, Filmstrip Index Numbers.

[JP Hess]

Denis, I refer you to a previous discussion I had with this person. I don't know how to help him, and he's looking for real answers.

https://community.adobe.com/t5/lightroom-classic/gpu-grayed-out/td-p/11429685?page=1

[DdeGannes]

Ok thanks for the heads up I now see the post he started yesterday.

[spinningstill]

The answer is I spoke with Adobe.

There appears to be a slight misinterpretation with the wording in Lr.  When “auto” is chosen, it says “basic” acceleration is enabled.  However, when in Ps, advanced is enabled.

Before the change I used the manual way with custom.  But this feature doesn’t seem to be enabled in the current version of Lr.

The list of compatible GPUs does list the one in my machine.  Plus, the additional checking via Ps reveals this.

So, the answer is use “auto” in Lr for now until they return the feature of custom. It performs much better.