P: Fullscreen with Menu Bar not working correctly with multiple monitors

[calie mae]

1. Version 13.5.1, Camera Raw 16.5, Build [202408271704-d15d09cd]

2. MacOS 14.6.1

3:

• Have main monitor in Fullscreen with Menu Bar mode. Secondary display is active, in Full Screen.
• On primary display, change from Library to Develop module.
• The main library window will jump from the primary display onto the secondary display.
• This also happens when switching the other way around, or when changing from Loupe to Grid, for example.
• Sometimes I have a third display attached, and when I do the main window sometimes jumps to the tirtiary display instead of the secondary.

4. Basically, display handling has gone bonkers. I can no longer use Lightroom Classic in Fullscreen with Menu Bar mode, or the screens jump around whenever I switch views.

System info:

Lightroom Classic version: 13.5.1 [ 202408271704-d15d09cd ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 14
Version: 14.6.1 [23G93]
Application architecture: arm64
Logical processor count: 12
Processor speed: NA
SqLite Version: 3.36.0
Power Source: Plugged In, 80%
Built-in memory: 16,384.0 MB
Dedicated GPU memory used by Lightroom: 1,648.4MB / 10,922.6MB (15%)
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 601.8 MB (3.6%)
Virtual memory used by Lightroom: 417,618.6 MB
Memory cache size: 158.5MB
Internal Camera Raw version: 16.5 [ 1954 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 325MB / 8191MB (3%)
Camera Raw real memory: 330MB / 16384MB (2%)

Cache1:
Final1- RAM:49.0MB, VRAM:0.0MB, ***.jpg
Final2- RAM:50.0MB, VRAM:130.0MB, ***.jpg
Preview3- RAM:22.0MB, VRAM:0.0MB, ***.jpg
Final4- RAM:49.0MB, VRAM:0.0MB, ***.jpg
NT- RAM:170.0MB, VRAM:130.0MB, Combined:300.0MB

Cache2:
m:158.5MB, n:169.0MB

U-main: 84.0MB

Standard Preview Size: 2048 pixels
Displays: 1) 4608x2592, 2) 3600x2338, 3) 2388x1668

Graphics Processor Info:
Metal: Apple M2 Pro
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: OFF

Application folder: /Applications/Adobe Lightroom Classic
Settings Folder: /Users/*****/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr
4) Nikon Tether Plugin

Config.lua flags:

[JohanElzenga]

Yes, there are several threads that report broken secondary display behavior. I see this too, but I haven't checked if using another view than full screen with menubar changes this.

[Rikk Flohr: Photography]

updating thread to include existing bug

[clyde.c.brown]

I have the same symptoms as @calie mae. This appeared with the switch from LrC 13.4 to 13.5.1, so it's new/different from past bugs related to secondary display.

This bug becomes harder to troubleshoot due to Secondary display takes keyboard focus, disabling some keyboard shortcuts, so keep that in mind.

It does not happen in "Window > Screen Mode > Normal". It does happen in "Window > Screen Mode > Full Screen" and, as noted in the original post, "Window > Screen Mode > Full Screen with Menubar".

It does not happen when GPU acceleration is disabled. But GPU acceleration is required to render HDR images, and rendering HDR images is the big improvement in 13.5 over 13.4.

My System Info is similar to the original post:

Lightroom Classic version: 13.5.1 [ 202408271704-d15d09cd ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 14
Version: 14.5.0 [23F79]
Application architecture: arm64
Logical processor count: 16
Processor speed: NA
SqLite Version: 3.36.0
Power Source: Plugged In, 80%
Built-in memory: 65,536.0 MB
Dedicated GPU memory used by Lightroom: 304.8MB / 49,152.0MB (0%)
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 1,441.0 MB (2.1%)
Virtual memory used by Lightroom: 413,096.6 MB
Memory cache size: 140.4MB
Internal Camera Raw version: 16.5 [ 1954 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 80MB / 32767MB (0%)
Camera Raw real memory: 82MB / 65536MB (0%)

Cache1: 
NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB

Cache2: 
m:140.4MB, n:0.0MB

U-main: 109.0MB

Standard Preview Size: 2880 pixels
Displays: 1) 3024x1964, 2) 2560x1440, 3) 2560x1440

Graphics Processor Info: 
Metal: Apple M3 Max
Init State: GPU for Export supported by default
User Preference: Auto
Enable HDR in Library: ON

Application folder: /Applications/Adobe Lightroom Classic 13.5.1
Library Path: /Volumes/home/Documents/photography/lightroom/catalog/Lightroom Catalog.lrcat
Settings Folder: /Users/clyde/Library/Application Support/Adobe/Lightroom

Installed Plugins: 
1) Any Crop
2) Any File
3) DxO PureRAW 3
4) DxO PureRAW 3 Importer
5) jf Bag-o-Goodies
6) jf Creative Commons
7) jf Data Explorer
8) jf Geocoding Support
9) jf Metadata Viewer
10) jf Timelapse Support
11) LrMediaWiki

Config.lua flags: