GPU acceleration required for HDR display?

[Ethan26712023o54o]

On a PC Win 10 Pro using Nvidia GeForce GTX 1080 Ti graphics card. Displaying to my TV via HDMI at 4K.

If I dare to turn on the GPU in Lightroom preferences, UI performance becomes impossible. Pop-ups will half-appear. I can click on a button and nothing will happen for tens of seconds. Drop down menus will flicker.

I'm unsure what might be the problem. I'm not overclocking or otherwise doing anything strange. I worked with an Adobe tech but once they saw that disabling the GPU fixed the issues, they pushed back and said my system is to blame. Except I can play games without issue.

I'd live without the GPU except then I can't use HDR.

Thanks!

-- Ethan

[Ian Lyons]

Please post your 'System Info'. This can be obtained by copying the text info located in LrC's Help > System Info menu item.

[Ethan26712023o54o]

Lightroom version: 7.2 x64 [ 20240214-0910-27200e9 ] (Feb 14 2024)
NGL Version: 1.36.0.9
WF Version: 6.2 3d4e7aa
VF Version: 1.0.135.7
HIL Version: 40409
CAI Version: adobe_c2pa/0.7.6 c2pa-rs/0.25.2

Operating system: Windows 10
OS Version: Windows 10 Pro (2009)
Application architecture: x64
System architecture: x64
Computer model: System manufacturer System Product Name / Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Logical processor count: 8
Processor speed: 4.2 GHz
Built-in memory: 16327.1 MB
Real memory available to Lightroom: 16327.1 MB
Real memory used by Lightroom: 2665.8 MB (16.3%)
Virtual memory used by Lightroom: 3402.2 MB
Memory cache size: 3825.0 MB

Internal Camera Raw version: 16.2 [ 1763 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1916MB / 8163MB (23%)
Camera Raw real memory: 1928MB / 16327MB (11%)

Display: 3840x2160
System DPI setting: 192 DPI (high DPI mode)
Desktop composition enabled: Yes
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: DirectX: NVIDIA GeForce GTX 1080 Ti (31.0.15.5222) - 11 GB
Graphics Processor Detail: loaded: Yes, supported: Yes, compute: Yes, init: I4_GPU4, hard: success, soft: success, al: Yes, dl: No
OS Media Capability: true

Application Folder: C:\Program Files\Adobe\Adobe Lightroom CC
Settings Folder: C:\Users\foggy\AppData\Roaming\Adobe\Lightroom CC
Library Folder: C:\Users\foggy\AppData\Local\Adobe\Lightroom CC\Data

[Ian Lyons]

You're using Lightroom Desktop 7.2 not Lightroom Classic. Therefore, I've moved your thread to the Lightroom Cloud forum.

[Ethan26712023o54o]

Just hoping to get someone with an idea. I cancelled my Lightroom subscription because I can't get HDR to work without the GPU working.

[GoldingD]

Displaying to my TV via HDMI at 4K

Are you sure that the screen is not the issue?

In your latter reply you mention getting HDR to work. I suspect it will not with that screen.

I am assuming you are referring to HDR treatment, not Merge Photo HDR.

[Ethan26712023o54o]

I only meant that viewing photos in HDR is only supported with GPU acceleration turned on, but turning GPU acceleration on breaks Lightroom.