Participant

Question

White grid lines in develop tab full screen mode

Forum|Forum|4 years ago
January 23, 2022
5 replies
2103 views

Hey guys,

I'm runnig Lightroom Classic V 11.1 on a Macbook Pro M1 Max.

I recently noticed some weird white grid lines appearing once I switch to full screen mode and hit "F" while in the develop tab. You can see them in the top half of the picture looking at the sky. They are very light and hard to see at the first look. I thought there is something wrong with my camera, but the lines disappear once I zoom into the picture. They are also gone after exporting the pics. So I assume it must be some kind of preview problem?

Did anyone else experience this issue?

Thanks for your help!

macOS

This topic has been closed for replies.

lenardm99835948Author

Participant

Thank you guys for all the messages so far!

I uploaded the RAW file alongside the xmp here: https://we.tl/t-zUzmSBBPxu

I dont think there is an issue with the Photo file though. Yesterday evening I donloaded Lightroom (usually I use Lightroom Classic). I didnt seem to have any issue previewing the file there.

I'm pretty sure it's a problem within Lightroom Classic. Maybe its not quite there yet for the new Apple M1 Systems, could that play a role in that?

Thanks for your help guys, really appreaciate it!

johnrellis

Legend

I imported that file into my LR 11.1 / Mac OS 11.6.2 / Macbook Pro (15", 2019) and didn't see the grid lines on either the built-in display or an EIZO display.

To narrow this down, try this:

1. Remove the photo from LR (without deleting it from disk).

2. Set Preferences > Performance > Use Graphics Processor to Off.

3. Do Preferences > Performance > Camera Raw Cache Settings > Purge Cache.

4. Restart LR.

5. Import the file.

Do you still see the grid lines?

A

Anonymous

That you don't see it at 1:1 is a good sign and remember, that is the only accurate way to view the image! Zoom out, there is subsampling used to preview the image.

I suspect if you zoom in past 1:1 (100%) you again do not see the lines?

Did you ever figure out what the problem was? I have a macbook pro M1 and have the same problem, mostly when in full frame in Develop mode.

johnrellis

Legend

Select the photo in Library and do Metadata > Save Metadata To File. Then upload the photo and its .xmp sidecar (if it's raw) to Dropbox, Google Drive, or similar and post the sharing link here. We can quickly determine if this is inherent in the photo or something specific to your configuration.

johnrellis

Legend

I edited the screenshot to make the grid lines more noticeable:

Bob Somrak

Legend

@TheDigitalDog

The grid pattern is there. 2 horizontal and 3 vertical lines I can see on my Ipad. They are faint wide lines only visible if I zoom in.

M4 Pro Mac Mini. 48GB

TheDigitalDog

Inspiring

I don't see the lines in your screen capture. Do you when viewing it here?

If you see it but can't capture in the screen capture, first, try disabling GPU in the preferences (Preformance tab). Any better?
If not, recalibrate and build a new ICC display profile, the old one might be corrupted.
If you are using software/hardware for this task, be sure the software is set to build a matrix not LUT profile, Version 2 not Version 4 profile.
If turning OFF GPU works, it's a GPU bug and you need to contact the manufacturer or find out if there's an updated driver for it.
Also see: https://helpx.adobe.com/photoshop/kb/acr-gpu-faq.html

Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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