Lightroom Classic: Refreshing crop view on secondary display

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  • Problem
  • Updated 2 weeks ago
  • Acknowledged
  • (Edited)
Hi.

My secondary display has a delay showing my cropped photo. If I crop the photo, LR Classic will refresh the second monitor only after I change something on the photo. For example, I crop the photo. The primary monitor shows the cropped area, but the second monitor shows the original area. If I change the crop area to whatever, the secondary screen updates and shows the previews cropped image (not the new crop). If I exit the crop tool, with the image cropped, the secondary display still shows the previews crop. If I change anything on the photo, for example, exposure by 0.1 (or anything else that forces a refresh), the second monitor updates the photo and shows the current crop. So, what I mean is that the second monitor is one step behind the primary display when showing the cropped image.
Besides, when I click the crop tool, the primary monitor blinks the photo very briefly and shows the previews photo I was working on, then shows the current photo again with the crop tool enabled.

PS: I'm using the latest LR version.

Any thoughts?
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Glauco Castro

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Posted 8 months ago

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Johan Elzenga, Champion

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I just read a similar report in another forum. This is probably a GPU issue. Turn off the use of the graphics processor in Preferences - Performance to see if that solves the problem.
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Glauco Castro

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Thanks for the reply. I've turned it off, but didn't solve the problem. :(
I even restarted LR after turning GPU off, with no luck.
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Rikk Flohr, Official Rep

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The maximum delay I see on Mac is about a half-second. 
How does that compare?

Have you reset your preferences file?
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Glauco Castro

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Hi Rikk. It's not a delay. It's one step behind. If a change the crop and do nothing, the second monitor won't show the cropped version. Then, if I change something in the photo, it updates the second monitor the second monitor and show the photo cropped. It seems LR isn't refreshing the second monitor when I use the crop tool.

I haven't reset my preferences. How do I do it? What do I lose by doing it?

Thanks!
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Rikk Flohr, Official Rep

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A Preference File will survive a Lightroom uninstall/reinstall. Sometimes weird behavior is corrected/cured by resetting the preferences.Reset Procedure:

1. Close Lightroom.
2. Hold down [Alt/Opt]+[Shift] while restarting Lightroom.
3. Overwrite the Preferences when prompted by the dialog.
4. Close Lightroom.
5. Restart Lightroom.

Does the behavior continue after resetting the preferences? 
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Glauco Castro

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No, it's ok now! Thank you!
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Bob Bruyn

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I got the same bug after updating to 2020 version. Anyone else have this particular bug? I don't really feel like resetting all my preferences...But will if I have to.

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Bob Bruyn

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PS. I’m on windows 10
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Suzanne Mathia

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I have a client experiencing the same problem. It is occurring on 2 separate macs one with Catalina and one with Mohave. Both have the new Lightroom classic download. Resetting preferences and turning GPU on and off have not fixed the issue

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joe bazooka

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Yes I'm having the same issue on MacOS Catalina.

I can't use my secondary display to preview my crop operation any more.
(Edited)
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Brian Photastic

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This reply was created from a merged topic originally titled Lightroom Classic and Photoshop: Problem on second monitor.

Firstly, I have two monitors and LR is setup to have the Loupe view on the second screen and Photoshop to have all the tool tabs etc on it.

In Lightroom Classic, if I Develop an image and adjust the crop, this is not always reflected in the loupe image on the second screen. If I make a second crop adjustment, the first crop is displayed, sometimes.

In Photoshop, when I transfer an image from Lightroon Classic to edit in Photoshop, (which is already running) the image is displayed in the second monitor under my tabs. However if PS is not already open, it opens and displays correctly.

 

I tried with both monitors on the same and then on separate graphic cards, with and without gpu acceleration etc. No difference. Also no difference in recent updates to both programmes.

 

All else on Win 10 is running as it should on two screens (video editor etc)
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Bruce Houstoun

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I also have experienced the issue with the display of crops being 1 step behind on a 2nd monitor.


Some observations & workaround that I have found while performing crops:

Crop display updates on 2nd screen are only 1 step behind if the 'navigator' window is not visible:
Either the left panel is collapsed/hidden or the just navigator window within the left panel is hidden.


If the navigator window is visible, then the 2nd display updates ok as crop edits are made.

Workaround:
To update 2nd screen you just need to briefly unhide/hide the left panel with mouse.
Then the 2nd screen updates the crop display. This is quicker than switching to another photo and back.
(Pressing F7 twice works too, but there is a brief weird display of top panel elements... it makes for an annoying switch.


-BH



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joe bazooka

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Problem still exists in 9.3
Resetting preferences did not help.
Navigator window visible/invisible has no effect on my crop preview.


(Edited)