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Lightroom Classic stopped working

New Here ,
Feb 17, 2025 Feb 17, 2025

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I use lightroom classic a lot and have come to appreciate the denoise function. It worked succesfully on my last job of batch work and synchronising of over two hundred raw photos (January 2025). I tried to use it to process a batch of 10 and then on an individual image this week no luck. It starts the progress bar comes up and then nothing no DNG file. I have over 200 GB of ssd disk space. I have tried with a 4050 GPU both on and off no luck. Lightroom works but classic does not. I cannot find the temp file so I conclude it has not been generated. Help appreciated

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correct answers 1 Correct answer

LEGEND , Feb 20, 2025 Feb 20, 2025

"It is not the driver. I rolled back the software of lightroom and it works. So it must be the latest Lightroom Software"

 

That would be an incorrect conclusion. Adobe is constantly changing the code that uses the GPU, and there are many reports here of an updated LR tripping over bugs in a graphics driver that didn't affect an older version of LR. That may or may not be happening here.

 

As Axel suggested, please do the LR menu command Help > System Info and copy/paste the entire contents here so

...

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New Here ,
Feb 17, 2025 Feb 17, 2025

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So I solved the problem with the denoise no londer available . I rolled lightroom classic back to 13.5.1 problem solved

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Community Expert ,
Feb 17, 2025 Feb 17, 2025

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quote

...I have tried with a 4050 GPU both on and off no luck. ...

By stuartjonathangray

 

Denoise doesn't work during the GPU support is deactivated.

 

It seems there a problem with your graphic device driver. Check if the latest Studio version of NVidia's driver is installed.

It's recommended to use the Studio version of the graphic driver and not the "Game Ready" version.

 

My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 24H2 -- LR-Classic 14 - Photoshop 26 - Nik Collection 7 - PureRAW 4 - Topaz PhotoAI 3

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New Here ,
Feb 20, 2025 Feb 20, 2025

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It is not the driver

I rolled back the software of lightroom and it works.

So it must be the latest Lightroom Software

I have the latest driver the first thing I checked

Regards

Stuart

*Stuart Jonathan Gray*


*NHDT Elec Eng L/C (Wits): PMP/RMP (PM Institute): : Dip/PM: PRINCE2
Registered Practitioner (Axelos): Agile practitioner APMG. CEASA, SAFHE. *

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Community Expert ,
Feb 20, 2025 Feb 20, 2025

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@stuartjonathangray , you stated "
I rolled back the software of lightroom and it works. ( state the numeric version.)

So it must be the latest Lightroom Software" (state the numeric version?)

 

Regards, Denis: iMac 27” mid-2015, macOS 11.7.10 Big Sur; 2TB SSD, 24 GB Ram, GPU 2 GB; LrC 12.5,; Lr 6.5, PS 24.7,; ACR 15.5,; (also Laptop Win 11, ver 23H2, LrC 14.2, ; ) Camera Oly OM-D E-M1.

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New Here ,
Feb 20, 2025 Feb 20, 2025

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The problem version was 14.1 or 14.1.1 cannot remember 13.5.1 worked

Now upgraded to 14.2 and works again
Regards

Stuart

*Stuart Jonathan Gray*


* https://www.linkedin.com/in/stuartjonathangray/
<>*
*NHDT Elec Eng L/C (Wits): PMP/RMP (PM Institute): : Dip/PM: PRINCE2
Registered Practitioner (Axelos): Agile practitioner APMG. CEASA, SAFHE. *

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Community Expert ,
Feb 20, 2025 Feb 20, 2025

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quote

It is not the driver
...


By stuartjonathangray

 

What makes you so sure?

In addition what @DdeGannes wrote, please also provide a copy of your 'System Info'. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

 

 

My System: Intel i7-8700K - 64GB RAM - NVidia Geforce RTX 3060 - Windows 11 Pro 24H2 -- LR-Classic 14 - Photoshop 26 - Nik Collection 7 - PureRAW 4 - Topaz PhotoAI 3

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New Here ,
Feb 20, 2025 Feb 20, 2025

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I rolled back from 14.1 to 13.5.1 and it worked

Now updated to the latest 14.2 and it works
Regards

Stuart

*Stuart Jonathan Gray*


* https://www.linkedin.com/in/stuartjonathangray/
<>*
*NHDT Elec Eng L/C (Wits): PMP/RMP (PM Institute): : Dip/PM: PRINCE2
Registered Practitioner (Axelos): Agile practitioner APMG. CEASA, SAFHE. *

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LEGEND ,
Feb 20, 2025 Feb 20, 2025

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"It is not the driver. I rolled back the software of lightroom and it works. So it must be the latest Lightroom Software"

 

That would be an incorrect conclusion. Adobe is constantly changing the code that uses the GPU, and there are many reports here of an updated LR tripping over bugs in a graphics driver that didn't affect an older version of LR. That may or may not be happening here.

 

As Axel suggested, please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of LR, hardware, and software LR thinks you're running and important LR options that are set.

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New Here ,
Feb 24, 2025 Feb 24, 2025

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Thanks for the comment but when I have the latest drivers and a fully updated machine and a particular software version does not work after an auto update and the latest does the correct conclusion is the software version. I am not going to roll back again to find if it is 14.1  or what the problem is as 14.2 works and it must have been a 14.1 bug.

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