Adobe Lightroom Doesn't Scale properly in 2-monitor setup with different DPI scalings

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  • Updated 3 years ago
I had 2 monitors, a 5K DELL (UP2715K), set as primary, and a lower resolution DELL which was my secondary monitor. The 5K monitor uses 200% DPI scaling while the other one 100%. Lightroom is set to enlarged fonts by 200%. Everything worked fine.

Recently, I replaced the secondary monitor with Acer X34 (100% DPI scaling) and had to make it primary due to G-SYNC requirement leaving the 5K as my secondary monitor. In Windows 7, I'm using DPI scaling set 100% for Acer and 200% for Dell 5K. When I open Lightroom, all menu fonts and tooltips are really tiny like it had used 100% scaling instead of 200%.

When I ran SystemInfo, I get the following:

Lightroom version: CC 2015.6 [ 1078672 ]License: Creative Cloud
Operating system: Windows 10
Version: 10.0
Application architecture: x64
System architecture: x64
Logical processor count: 12
Processor speed: 3.5 GHz
Built-in memory: 32669.3 MB
Real memory available to Lightroom: 32669.3 MB
Real memory used by Lightroom: 935.9 MB (2.8%)
Virtual memory used by Lightroom: 911.0 MB
Memory cache size: 559.1 MB
Maximum thread count used by Camera Raw: 12
Camera Raw SIMD optimization: SSE2,AVX,AVX2
System DPI setting: 96 DPI (high DPI mode)
Desktop composition enabled: Yes
Displays: 1) 3440x1440, 2) 5120x2880
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 
GeForce GTX 1080/PCIe/SSE2

Check OpenGL support: Passed
Vendor: NVIDIA Corporation
Version: 3.3.0 NVIDIA 368.39
Renderer: GeForce GTX 1080/PCIe/SSE2
LanguageVersion: 3.30 NVIDIA via Cg compiler


It looks like the DPI scaling recognized by Adobe is 96 (which seems to be coming from the first monitor, not the one the program is running on).

Is there a workaround that would always force high DPI for Lightroom?
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Posted 3 years ago

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