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Question

P: Colored "pixel" artifacts/subdued blacks in shadow areas (older Macs) (also visible on CR)

Forum|Forum|2 years ago
June 14, 2023
173 replies
111536 views

I updated LrC to 12.4 yesyerday. Since then a number of pixels in multiple colors appear appear quite often on the image, mostly in the areas of blacks/darks and when using Tone Curve commands. It's similar to the red/blue pixels which denoted clipping in the areas of blacks/whites, but they appear in very many different other colors. Sometimes they disappear, or decrease, after actioning the commands again, sometimes they do not. Is anybody else facing the same problem which I encounter now for the vey first time after many years of use of LrC? Thank you in advance for your advise.

macOS

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daveRedShed9UK

Participating Frequently

That's not a solution it's a workaround and infeasible if you are working with a lot of images

Trystero

Known Participant

Please read the message sent by Lisa4BOYS on 9 december, it contains a real solution to this issue:

"you have to fully edit the image and then go to CALIBRATION and change it to Version 4 (it is set to Version 6). You will see the weird pixelation go away."

K

Kristeen31127139hjaj

Participant

While I apprecitate the work around this isn't really feisable or sustainable. There has to be another way.

J

Jao vdL

Community Expert

There is no other way until Adobe provides a workaround for the bug apparently present in the drivers for the GPU cards in these older macs. The drivers are never going to be updated (machines and GPUs are too old) so only way is if Adobe finds a workaround for the driver bugs that works with the new code introduced for the v6 process version. Barring that only feasible fix might be for Adobe to competely disable the GPU for these machines which would make Lightroom really slow or they might simply declare Lightroom incompatible with these machines. Not sure if this will ever get fixed therefore but hopefully Adobe surprises us.

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daveRedShed9UK

Participating Frequently

I did a screeshare and sent logs last week. It's been radio silence since then....

it would be nice if they put a statement out considering the monthly costs to use this software

L

Lisa4BOYS

Participating Frequently

This is a bug in LR. It's time consuming and annoying but you have to
fully edit the image and then go to CALIBRATION and change it to Version 4
(it is set to Version 6). You will see the weird pixelation go away.

I have been on these forums and called in to the help desk and shared my
screen. The last I was told is that I have to wait until the next update
and that may not be for a month or 2. So difficult and adds so much time
to your workflow which you don't have when you are a family photographer
and everyone needs their photos back asap to make cards!

Report the issue to Adobe engineers so they can fix this with the next
update.

I am using a late 2015 iMac.
*Lisa Hyland*
Owner / Photographer
www.fourboysphotography.com

*2022 Best of Long Island Photographer!*

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Lisa4BOYS

Participating Frequently

IT IS NOT YOUR CAMERA!!!
This is a bug in LR. It's time consuming and annoying but you have to
fully edit the image and then go to CALIBRATION and change it to Version 4
(it is set to Version 6). You will see the weird pixelation go away.

I have been on these forums and called in to the help desk and shared my
screen. The last I was told is that I have to wait until the next update
and that may not be for a month or 2. So difficult and adds so much time
to your workflow which you don't have when you are a family photographer
and everyone needs their photos back asap to make cards!

Report the issue to Adobe engineers so they can fix this with the next
update.

I am using a late 2015 iMac.

*Lisa Hyland*
Owner / Photographer
www.fourboysphotography.com

*2022 Best of Long Island Photographer!*

H

Hallux38

Participant

That’s very helpful. Thank you so much!

Sent from my iPhone

J

Jao vdL

Community Expert

>Is this pixelation from my new Z6ii or the LR update?

the artefacts you show here is the bug addressed in the thread your question got moved into. It is caused by the update to LR and not your camera. As you can see lots of people experiencing this due to an issue with the new code in LR 13 interacting with the graphics card driver of certain older graphics cards on older Macs and some windows machines apparently. SOme people are able to fix it by turning off graphics card aceleration in Classic but others have had to (temporaril) revert to LR 12. Read through the thread to see how this is being done.

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Paweł2588117827o3

Participating Frequently

you can check your camera files in Adobe camera raw (photoshop) or nikon studio nx (free program).

H

Hallux38

Participant

Help! I have a new Nikon Z6ii that I just bought new from Abe's of Maine Dec.1st to repace my old Nikon D4.

I primarily shoot action/sports photos. Last weekend at the tournament I took lots of photos.

I went to download onto my MacBook pro into LightRoom Classic and LR Classic needed to update.

I updated to LR Classic 13.0.2 and then downladed my first set of photos from my new camera.

As I am editing them I'm noticing weird pixelation in a bunch of photos.

Is this pixelation from my new Z6ii or the LR update? I can't find anything on the web addressing this.

I need to figure out so I can return my camera by Jan.1, 2024 if it's that's the problem. Thanks

K

Kristeen31127139hjaj

Participant

I'm shooting Canon. So if you are infact having the same problem it has nothing to do with your camera. I really think it's a LR issue.

K

Kristeen31127139hjaj

Participant

I’ve got an issue with Lightroom that I can't seem to resolve. I'll be using Lightroom with no issues, then all of a sudden all the blacks that are clipped will start showing up as clipped. Only problem is, I don't have that setting selected. If I hit 'J' the clipping marks don't go away. If I export the images the clipping marks are there. If I restart Lightroom and export the clipping marks are there.

I can get the marks to go away by restarting Lightroom, but I'm going mad constantly restarting. Sometimes the problem will happen immediately again and sometimes it won't happen again for 24 hours or so. Here is an exaple of what an exported image looks like when the marks are there.

I'm a professional photographer so I'm no stranger to Lightroom, but I can't seem to resolve this problem. Someone please help save my sanity!