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GPU turned on makes images darker

Explorer ,
Dec 19, 2023 Dec 19, 2023

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I have a i9-4900K, 4090 gpu computer and when i turn on the gpu in preferences, my images go darker than when it isn't engaged.  Attached are screenshots of what I am talking about.

 

[moved from bugs to discussions according to the community rules - Mod.]

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Explorer ,
Dec 19, 2023 Dec 19, 2023

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I apologize, its a windows 11, i9-14900k intel cpu with the 4090 graphics card.  not a i9-4900k.  typo.

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LEGEND ,
Dec 19, 2023 Dec 19, 2023

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Try updating your graphics driver by going directly to the manufacturer's web site:
https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html#solution-4


If that doesn't help, please copy/paste here the entire contents of the LR menu command Help > System Info -- that will let us see exactly which versions of hardware and software LR thinks you're running.

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Explorer ,
Dec 19, 2023 Dec 19, 2023

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I do have the current updated graphics card and confirmed it.  It's version: 546.33.  Here is the info from system info:

 

Lightroom Classic version: 13.1 [ 202312111226-41a494e8 ]
License: Creative Cloud
Language setting: en
Operating system: Windows 11 - Business Edition
Version: 11.0.22631
Application architecture: x64
System architecture: x64
Logical processor count: 32
Processor speed: 3.1GHz
SqLite Version: 3.36.0
CPU Utilisation: 0.0%
Built-in memory: 65276.9 MB
Dedicated GPU memory used by Lightroom: 20.4MB / 24156.0MB (0%)
Real memory available to Lightroom: 65276.9 MB
Real memory used by Lightroom: 2472.5 MB (3.7%)
Virtual memory used by Lightroom: 2635.2 MB
GDI objects count: 796
USER objects count: 2687
Process handles count: 2262
Memory cache size: 119.4MB
Internal Camera Raw version: 16.1 [ 1728 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1010MB / 32638MB (3%)
Camera Raw real memory: 1142MB / 65276MB (1%)
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Standard Preview Size: 2560 pixels
Displays: 1) 2560x1440, 2) 2560x1440, 3) 2560x1440
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No
 
Graphics Processor Info: 
DirectX: NVIDIA GeForce RTX 4090 (31.0.15.4633)
Init State: GPU for Export supported by default
User Preference: GPU for Display disabled
 
Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: C:\Users\crate\Pictures\Lightroom Catalog-v13.lrcat
Settings Folder: C:\Users\crate\AppData\Roaming\Adobe\Lightroom
 
Installed Plugins: 
1) AdobeStock
2) Flickr
3) Nikon Tether Plugin
 
Config.lua flags: None
 
Adapter #1: Vendor : 10de
Device : 2684
Subsystem : 40e41458
Revision : a1
Video Memory : 24156
Adapter #2: Vendor : 1414
Device : 8c
Subsystem : 0
Revision : 0
Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: $$$/dvaaudiodevice/SystemDefaultAndEffectiveDeviceName=System Default - Headset Earphone (Astro MixAmp Pro Voice)#{comment}DVAAU-4201250: Open the audio hardware preferences page.
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: Uninitialized
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 16
GL_ACCUM_BLUE_BITS: 16
GL_ACCUM_GREEN_BITS: 16
GL_ACCUM_RED_BITS: 16
GL_ALPHA_BITS: 0
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 32768
GL_MAX_TEXTURE_UNITS: 4
GL_MAX_VIEWPORT_DIMS: 32768,32768
GL_RED_BITS: 8
GL_RENDERER: NVIDIA GeForce RTX 4090/PCIe/SSE2
GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA
GL_STENCIL_BITS: 8
GL_VENDOR: NVIDIA Corporation
GL_VERSION: 4.6.0 NVIDIA 546.33
GPUDeviceEnabled: false
OGLEnabled: true

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Community Expert ,
Dec 19, 2023 Dec 19, 2023

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This can also be a consequence of a bad monitor profile. How do you calibrate your display? Is HDR enabled when this happens (either globally in windows and/or in Lightroom)?

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Explorer ,
Dec 19, 2023 Dec 19, 2023

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Thank you everyone for their resonses. I used the spyderx elite color tool and used both the lg monitor and datacolor software and the results were so dull that I literally adjusted things until they looked like the pictures I exported from my old comp.

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Community Expert ,
Dec 19, 2023 Dec 19, 2023

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I suggest to recalibrate your monitor, with either the monitor-supplied tool from LG (if it can be hardware calibrated) or with the Datacolor tool.

What is the exact type of the monitor?

Did you try to reset to the default sRGB monitor profile, just to see what happens and confirm it's a profile issue?

--- Got your issue resolved? Please label the response as 'Correct Answer' to help your fellow community members find a solution to similar problems. ---

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Explorer ,
Dec 19, 2023 Dec 19, 2023

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I did just recalibrate it and it still has that issue.  I have tried default settings as well.  It is an LG OLED model: 27GR95QE

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Community Expert ,
Dec 20, 2023 Dec 20, 2023

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Your display is wide-gamut and can be hardware calibrated. It should be connected by USB.

I suggest using the LG Calibration Studio for calibration and remove all other calibration tools.

I don't have an LG myself. But I suppose it's about the same as my EIZO.

--- Got your issue resolved? Please label the response as 'Correct Answer' to help your fellow community members find a solution to similar problems. ---

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Explorer ,
Dec 19, 2023 Dec 19, 2023

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I was getting a similar issue in Adobe Camera Raw up to a few updates ago and got the usual advice. It was never Adobe's problem, always the monitor, graphics card or something else. Eventually Adobe sorted it out with an update. I can't recall which one, but it was never explained what the issue was.

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LEGEND ,
Dec 20, 2023 Dec 20, 2023

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hard to compare when posted as an attachment(s). Difficult to view side by side. So I have taken the liberty of posting them as shown below"

1.jpg

 

2.jpg

 

Looks like what, half a stop? And perhaps it is a contrast change due to the darker image, but does it look a bit more saturated as well?

 

As the difference is viewable on someone else's computer, I doubt if this is a monitor calibration issue.

 

Here is one link on use of GPU (Preferences)

Lightroom Classic GPU FAQ | ADOBE

 

I suspect the issue is not what is occurring when you turn on the option to use the GPU, but what is not occurring when you turn that option off.

 

By the way, those screenshots, were they in the Develop Module? LrC display is more truthful in the Develop module.

 

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Community Expert ,
Dec 20, 2023 Dec 20, 2023

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There are issues like this that are caused by calibration. This happens when you have a v4 icc monitor profile which uses a LUT instead of a matrix description. This also interacts with the GPU so is not always a problem but it does cause precisely the observed phenomenon of too dark shadows if it is. The problem in that case actually does show up in screenshots surprisingly. So if the display is calbrated, make sure to use a icc v2 or icc v4 matrix profile, not LUT. We've seen it on this forum many times that this was the cause of plugged up shadows.

 

That said, I agree that the most likely candidate is the GPU. So first try to update drivers completely (don't use windows update, go to the GPU manufacturer website.

 

Lastly, do note that the Develop view is only the most accurate when you are zoomed into 1:1 or higher. When you are zoomed out, due to the way that the scaling algorithm works in Develop, it is not accurate 100%. This is especially apparent in highly detailed images or images with lots of noise and when you are using lower resolution displays such as 1080p or 1440p. When zoomed out surprisingly Library is actually more accurate in representing your final output.

 

 

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Explorer ,
Dec 21, 2023 Dec 21, 2023

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Thank you for this.  I have already updated the graphics card through the manufacturer and also double checked today, it's a 4090 GPU and might take a bit to get rid of issues.  I have calibrated the screen and it still does it, i have done that on 2 screens now both OLED and QLED and has the shade darker on each of them although more prominent in the OLED. I did check and the calibration was done with ICC Version 4 and Martix based.

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Community Expert ,
Dec 21, 2023 Dec 21, 2023

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Try recalibrating, and create a version 2 profile. Version 4 profiles have been known to create issues.

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Explorer ,
Dec 27, 2023 Dec 27, 2023

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Thank you for your response, i recalibrated with version 2 and it still had slight shadings.  Im just going to have it enabled and just live with it at this point... I got great new pc and im minding so many issues between my 14900K 4090 gpu and adobe products.  such a headache.

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