Since upgrading to an AMD 280X (Old 6950 worked fine) I have black colors on photos in the develop module with the GPU enabled. It was also crashing on entering develop until the latest AMD drivers came out (required the manual process to disable GPU accel). Now I can turn it on an off without crashing at least.
Without GPU enabled :
Goto Preferences and Turn on GPU support - nothing else. Immediately I get this. Occurs on all photos from different cameras.
Ouch and Help! It looks like a color mapping / pallet issue but I can't seem to find anything to change it.
Have rebuilt Windows 7 (for a different reason) - clean build installed Catalyst latest beta drivers "AMD-Catalyst-15.9.1Beta-64Bit-Win10-Win8.1-Win7-Sep30" and still have the problem.
Lightroom also updated to 6.2 without any improvement.
System Info - From Lightroom
Lightroom version: 6.2 [ 1044713 ]
Operating system: Windows 7
Application architecture: x64
System architecture: x64
Logical processor count: 12
Processor speed: 3.2 GHz
Built-in memory: 24516.7 MB
Real memory available to Lightroom: 24516.7 MB
Real memory used by Lightroom: 1252.9 MB (5.1%)
Virtual memory used by Lightroom: 1256.4 MB
Memory cache size: 714.5 MB
Maximum thread count used by Camera Raw: 12
Camera Raw SIMD optimization: SSE2,AVX
System DPI setting: 96 DPI
Desktop composition enabled: Yes
Displays: 1) 1920x1200
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No
Graphics Processor Info:
AMD Radeon R9 200 Series
Check OpenGL support: Passed
Vendor: ATI Technologies Inc.
Version: 3.3.13399 Core Profile Context 15.201.1151.1004
Renderer: AMD Radeon R9 200 Series
Application folder: C:\Program Files\Adobe\Adobe Lightroom
Library Path: D:\Lightroom\Catalog for Laptop\2015 - Photos\2015 - Photos.lrcat
Settings Folder: C:\Users\John A\AppData\Roaming\Adobe\Lightroom
1) Canon Tether Plugin
4) Leica Tether Plugin
5) Nikon Tether Plugin
Adapter #1: Vendor : 1002
Device : 6798
Subsystem : 27751462
Revision : 0
Video Memory : 3051
AudioDeviceName: Speakers (Creative SB X-Fi)
GPUDevice: not available
May i know are you using two monitor. ?
No - I have a single monitor connected to the PC. As I said it worked fine with an AMD 6950 card before I changed to a 280X.