P: LrD and LrC display wrong font size on dual monitor when Windows Display Scale differ

[Tom E P]

ISSUE (relates to both Lr and LrC): 

Short description: when dual monitors are set to different Scale in Windows then the top menu (File, Edit, Library, etc) and the dropdown menu text size displays in the wrong size (too large in my case).  Also, lines with check boxes in the Preferences menu are cropped in the upper end and are hard to decipher.

Suspected bug: when Lr opens it looks up the scaling set in Windows for the primary display (Monitor 1) regardless of which monitor it resides in. It should look up the scaling of the monitor it is displayed in at any given time.

Background:

johnrelis asked me to post this as a bug.

Original discussion thread: Re: Menu and context text size in LrC too large - Dual monitor

System Specs: 

Lightroom CC 6.1

Lightroom Classic 15.1

Windows 11 Pro for Workstations

NVIDIA RTX A4000

Intel(R) Xeon(R) W-11955M CPU @ 2.60GHz 2.61 GHz

RAM 128 GB

Monitor 1: Internal laptop 17'' (3840x2160) scaled at 200% in Windows Display settings

Monitor 2: External Eizo 27'' (2560x1440) scaled at 100% in Windows Display settings - this is the monitor I use for LrC 

LrC settings: Preferences>Interfase>Font Size: Automatic (changing this did not affect the problem)

Steps to reproduce:

1. Laptop display (Monotor 1/primary display) set to Windows>Display>Scale = 200%, This is a must for me in order to make any text in any program large enough to read on the 17'' 3.  840x2160 screen.
2. Monitor 2 (Excternal Eizo 27'' 2560x1440) set to Windows>Display>Scale = 100%.
3. Open LrC or LR CC and observe.  Drag from one monitor to the other

Expected result: 

I expect all text in LR to behave as they do for any other program (Photoshop, Office, etc). I.e. adapt to the settingsd of the monitor they reside in at any time. 

Actual result:

• The top text (catalogue name etc), menus (File, Edit, Library, etc) and all pull down menus display far too large on Monitor 2 (see screenshots, side by side ). It seems to display this text in 200% which is the setting for Monitor 1, insted of 100% which is the setting for Monitor 2.

• Text in the Preference settings are the right size, but lines with check boxes are cropped in the upper end and are hard to decipher  (see screenshot)
• 
• When i drag LrC to monitor 1 (higher resolution, but smaller screen) then the top menu text has the right size but all the rest of the text becomes to small to read.
•  
• 
  All other text in LrC display in the right size

Troubleshooting steps performed:

Resetting all LrC preferences had no effect.

Changing Lr Preferences>Interface>Font size did not resolve the problem

But resetting Monitor 1 to 100% in the Windows>Display Settings so that both monitors are at 100% did the trick, in the sense that LrC now behaves as the other programs on both monitors. I.e. LrC now looks fine on Montor 2 which is where I use it. The cropping of the check box lines in LrC settings were also fixed.  Paradoxically this does not help me at all, since havin my 17'' (3840x2160) Monitor 1 scaled at 100% leaves this screen useless as all text on thet screen becomes far too small to work with.  So I have to reset Monitor 1 to 200%.  When I reset Monitor 1 to 200% with LrC open in Monitor 2 it stays fine for one session.  However, when I close the program and repoen it straight into Monitor 2 then the menu texts in LrC becomes too large again, even when the program is opened straight into Monitor 2 (which is at 100%) without having breen in Monitor 1 (200%) at all.  So the bug is that when LrC opens it reads the scaling set at the primary monitor 1 regrdless of which monitor it curretly resides in. It should look up the scaling of the monitor it is displayed in at any given time.

[Tom E P]

Related problem also in Premiere Pro:  When reporting the above bug I wrote that Lr and LrC were the only programs with this scaling problem.  While all menu texts behave as expected in Premiere Pro on Monitor 2, it turns out that the specialized cursor in the timeline, which changes with the tool in use is displayed too large. Probably the same/similar cause as in Lr/LrC.  Primarely a cosmetic issue rather than a practical problem, in contrast to the Lr/LrC bug which makes parts of menus (check box items) unreadable and dropdown menus filling the entire screen, etc 

[Rikk Flohr: Photography]

LrC Team has reviewed and acknowledged the issue and created a ticket. 

[cornerofyoureye]

I have a large screen 4K monitor as my main and a secondary monitor at 1920x1080. I use the lower resolution for the core program and the 4K for the second screen developing window. The 1920 is set in Display Settings to 100% "Change the size of text, apps, and other items" and the 4K to 200%. Even though LR is on the screen set to 100%, pop-up selection windows are all messed up (text is increased in size, but the accompanying region is not, cropping the text and everythign within the window region). The attached is when the size is set to 200%.
Regardless the setting, if both screens aren't set to 100%, LR will mess up the subwindows. They work fine when both monitors are set to 100% (but then I can't read anything on the 4K because it's too small). 
Windows 10 machine, i9 processor, NVidia RTX 3080 video card.
Hoping someone has a solution or the program can be fixed so it scales regiouns and the window and adds scroll bars when necessary.

[johnrellis]

Moderators, @Rikk Flohr: Photography, please merge with this existing Bug:

https://community.adobe.com/t5/lightroom-classic-bugs/p-lrd-and-lrc-display-wrong-font-size-on-dual-...

[chadmangham]

Hey all,

I am having trouble with my menus and interface in Lightroom Classic. The taskbar menu at the top is huge and the preferenece menu is small and some parts cut off. I recently started to use an XPPen display as my second monitor to my Dell XPS 17 with a 4k screen. The XPPen is a 2k resolution. I have both set up to the correcty display settings in Windows system. I also noticed that the  This only happens in Lightroom. When I open photoshop the menus are as they should be. What am I doing wrong?

[AxelMatt]

The first thing that you should try is to switch off the GPU support from the Lightroom preferences and check if that helps to fix the issue.

Go to Lightroom > Preferences > Performance tab > Uncheck "Use Graphics Processor" > Restart Lightroom.

https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html

Another step is to try to reset the Lightroom preferences.

https://www.lightroomqueen.com/how-do-i-reset-lightrooms-preferences/

It's recommended to backup your preferences before you reset the preferences to the default settings:

https://helpx.adobe.com/lightroom-classic/kb/preference-file-and-other-file-locations.html

If this doesn't help we need more informations about your environment.

Please provide also 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.

[johnrellis]

See this thread for possible workaround:

https://www.lightroomqueen.com/community/threads/display-issues-with-external-monitors.34038/

[johnrellis]

"I recently started to use an XPPen display as my second monitor to my Dell XPS 17 with a 4k screen. The XPPen is a 2k resolution."

I'm guessing that Windows display scaling is set to greater than 100% on the 4K display. There's a bug where LR uses the display scaling from the main display on second displays, even though the second displays have different scaling set:

https://community.adobe.com/t5/lightroom-classic-bugs/p-lrd-and-lrc-display-wrong-font-size-on-dual-... 

See if this workaround helps:

https://www.lightroomqueen.com/community/threads/display-issues-with-external-monitors.34038/

To help others, let us know whether that works.

[chadmangham]

Thank you for the info. I reset my preferences and the scaling went even bigger, but I could actually see all of the preferences menu. I read you can right click the LR icon and do the properties and change the high DPI setting, which converted it back to the way I had it, so I can use LR, but still cannot see the preference menu. I did the copy and paste for the system settings. Looks a bit long, but want to include it all.

Lightroom Classic version: 12.3 [ 202304101834-a085245c ]

License: Creative Cloud

Language setting: en

Operating system: Windows 10 - Home Premium Edition

Version: 10.0.22621

Application architecture: x64

System architecture: x64

Logical processor count: 16

Processor speed: 2.4GHz

SqLite Version: 3.36.0

CPU Utilisation: 1.0%

Built-in memory: 65280.6 MB

Dedicated GPU memory used by Lightroom: 118.1MB / 5968.0MB (1%)

Real memory available to Lightroom: 65280.6 MB

Real memory used by Lightroom: 1259.8 MB (1.9%)

Virtual memory used by Lightroom: 1408.0 MB

GDI objects count: 780

USER objects count: 2084

Process handles count: 2684

Memory cache size: 0.0MB

Internal Camera Raw version: 15.3 [ 1451 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 217MB / 32640MB (0%)

Camera Raw real memory: 219MB / 65280MB (0%)

System DPI setting: 240 DPI

Desktop composition enabled: Yes

Standard Preview Size: 3840 pixels

Displays: 1) 3840x2400, 2) 2560x1440

Input types: Multitouch: Yes, Integrated touch: Yes, Integrated pen: Yes, External touch: No, External pen: Yes, Keyboard: No

Graphics Processor Info: 

DirectX: NVIDIA GeForce RTX 2060 with Max-Q Design (31.0.15.2737)

Init State: GPU for Image Processing supported by default

User Preference: Auto

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic

Library Path: C:\Users\adamc\OneDrive\Pictures\Lightroom\Lightroom Catalog-v12.lrcat

Settings Folder: C:\Users\adamc\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 

1) AdobeStock

2) Flickr

3) Loupedeck2

4) Nikon Tether Plugin

5) Smart Shooter 4

Config.lua flags: None

Adapter #1: Vendor : 10de

Device : 1f12

Subsystem : 98f1028

Revision : a1

Video Memory : 5968

Adapter #2: Vendor : 8086

Device : 9bc4

Subsystem : 98f1028

Revision : 5

Video Memory : 80

Adapter #3: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: $$$/dvaaudiodevice/SystemDefaultAndEffectiveDeviceName=System Default - Speakers (Intel® Smart Sound Technology (Intel® SST))#{comment}DVAAU-4201250: Open the audio hardware preferences page.

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: LR5x19

Direct2DEnabled: false

GL_ACCUM_ALPHA_BITS: 16

GL_ACCUM_BLUE_BITS: 16

GL_ACCUM_GREEN_BITS: 16

GL_ACCUM_RED_BITS: 16

GL_ALPHA_BITS: 0

GL_BLUE_BITS: 8

GL_DEPTH_BITS: 24

GL_GREEN_BITS: 8

GL_MAX_3D_TEXTURE_SIZE: 16384

GL_MAX_TEXTURE_SIZE: 32768

GL_MAX_TEXTURE_UNITS: 4

GL_MAX_VIEWPORT_DIMS: 32768,32768

GL_RED_BITS: 8

GL_RENDERER: NVIDIA GeForce RTX 2060 with Max-Q Design/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 527.37

GPUDeviceEnabled: false

OGLEnabled: true

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[chadmangham]

here is another example of how it looks when menus open

[johnrellis]

Moderators, @Rikk Flohr: Photography, please merge with this existing bug:

https://community.adobe.com/t5/lightroom-classic-bugs/p-lrd-and-lrc-display-wrong-font-size-on-dual-...

[chadmangham]

Thanks John!

[a.wojtas]

Lightroom appears to scale the fonts too large on my external monitor.

The "auto" font setting is fine on the external monitor. But it's way too small on the laptop.

I have to keep changing the setting back and forth, and tbh, my use of Lightroom has really stopped a lot because of this hassle. I bought this laptop thinking I'd use LR more but it's just uncomfortable to use for any length of time without changing the font size back and forth.

The external monitors are both Lenovo 24" QHD 2560x1440 which I run at 125% scaling in Windows 11.

The laptop is a new Dell 16 Plus with 16" 3K screen at 3072x1920 which is 175% scaling.

If I manually set the font size in LR to 200% it's fine on the laptop. But then it's huge on the external monitors.

Here's how it looks with LR font size set to 200%.

Laptop screen - just right:

External monitor - too huge:

[a.wojtas]

Not sure if I can make a request but ideally the font size would remember the setting based on which monitor it's opened from. I don't need it to automagically resize if dragged between different screen sizes. Just whatever it's started up on, as either laptop is open by itself, or laptop is closed and docked to usb-c external monitors. And if you dock the laptop with LR open too bad you need to close/re-open. This would still be a huge improvement over current!

Then for me it'd be Auto or Medium on external monitor, and 200% on laptop.

[johnrellis]

LR's handling of multiple displays of different sizes is a mess:

https://community.adobe.com/t5/lightroom-classic-bugs/p-lrd-and-lrc-display-wrong-font-size-on-dual-...

[johnrellis]

Moderators, @Rikk Flohr: Photography, please merge with the existing bug:

https://community.adobe.com/t5/lightroom-classic-bugs/p-lrd-and-lrc-display-wrong-font-size-on-dual-...