P: Unable to view System info

[FSt0p]

Hi.

I just updated to Lightroom Classic 12.0, running it on Windows 10 x64 21H2 (same thing happens on Windows 11).

When I'm trying to view system info (Help > System Info...) LrC gives error message:

So it is unable to view system information, which is frequently reqested by support or here on forums.

Please fix this.

Thank you.

[GoldingD]

Another member has this problem:

https://community.adobe.com/t5/lightroom-classic-discussions/nvidia-error-message/m-p/13276814#M2938...

mind you, that is not what the members posting is on, bu as you sated, other members will ask for Sys Info, and that is a problem in is own.

Sounds like a BUG.

[Rikk Flohr: Photography]

I've tried two Windows Systems in my office and neither reports this message. 
Can you reproduce @GoldingD ?

[GoldingD]

I do not have this problem, the Op of the above post, and the author of the post I linked have the issue.

OP has WIN 11, Author of the other post, did not state, my rig WIN 10.

[FSt0p]

For me this happens on the real hardware running Windown 10 x64 21H2, and also under VMWare virtual machine running Windows 11.

It happens every time I try to invoke system info.

[johnrellis]

I get this error with LR 12.0 on my main Windows 10, a near-virgin Windows 10 test machine, and a near-virgin Windows 11 test machine (all are Parallels virtual machines running on a Mac OS host).  I've attached System Info output from 11.5 on those three machines, as well as the console output showing the stack trace of that error (using the -tracebacks command-line switch).  The latter isn't very informative.

[FSt0p]

@Rikk Flohr: Photography 

So I've debugged this a bit a here is what I've found.

The issue is with AgImageIO.gpuVRAMTotalBytes() - on my systems it returns nil

Lightroom then tries to convert returned value (nil) to megabytes by dividing by 1024*1024 which leads to formentioned error.

Here is how to check:

use my small script to test

-- Copy this script to %APPDATA%\Adobe\Lightroom\Scripts

-- Main code
local LrDialogs = import("LrDialogs")
local AgImageIO = import("AgImageIO")
local AgGCCache = import("AgGCCache")
local AgSystemInfo = import("AgSystemInfo")

-- Show dialog with message
LrDialogs.message(
	"Debug",
    "System info:"..
	"\nmemSize="..tostring(AgSystemInfo.memSize() or "nil")..
    "\nusableAddressSpace="..tostring(AgSystemInfo.usableAddressSpace() or "nil")..
    "\ntotalCachedSize="..tostring(AgGCCache.main:totalCachedSize() or "nil")..
    "\ngpuVRAMTotalBytes="..tostring(AgImageIO.gpuVRAMTotalBytes() or "nil"),
	"info"
)

Copy all this code and save it to file Debug.lua
Then navigate to %APPDATA%\Adobe\Lightroom and create folder named "Scripts" there if it does not exist.

Put Debug.lua into this folder (%APPDATA%\Adobe\Lightroom\Scripts)

Then restart Lightroom, in the main menu select Scripts>Debug - it will show message box with some info.

On my system I get this:

Why AgImageIO.gpuVRAMTotalBytes() returns nil I don't know, debug info is stripped and it's hard to debug...

[johnrellis]

On my Windows VMs, the OpenGL devices reported by Photoshop's Help > System Info show VRAM: 0 MB -- perhaps LR 12's System Info is getting confused by these devices:

  Start platform OpenGL
    # displays:                   1
    Display 0
      Display:                      \\.\DISPLAY1
      Main:                         TRUE
      Built in:                     FALSE
      Stereo:                       FALSE
      Bounds:                       (0, 0) -> (2,048, 1,152)
      Dimensions:                   (2,048 1,152)
      Physical size:                (0 0)
      Pixel size:                   (0 0)
      Dynamic range:                (0 1)
      Potential dynamic range:      (0 1)
      Reference dynamic range:      (0 0)
      Attached Device:              (DeviceID name=Parallels using AMD Radeon Pro Vega 20 OpenGL Engine (Compat) index=0 preferred=1)
    
    # devices:                    1
    Device 0
      Name:                         Parallels using AMD Radeon Pro Vega 20 OpenGL Engine (Compat)
      Preferred:                    TRUE
      Power Envelope:               INTEGRATED
      Attachment:                   UNKNOWN
      # attached displays:          1
        \\.\DISPLAY1
      GPU accessible RAM:                8,589 MB
      VRAM:                                  0 MB
      Dedicated System RAM:                  0 MB
      Shared System RAM:                 8,589 MB
      API version:                  3.3 (3.3 ATI-4.8.101)
      Device version:               3.3 (3.3 ATI-4.8.101)
      Vendor name:                  AMD
      Driver date:                  2022-05-30  000000.000000-000
      Driver age:                   5 months
      Driver version:               17.1.4.51567
      GLSL version:                 3.30 (3.30)
  End platform OpenGL

[FSt0p]

Can you please run my script?
It's interesting to see what it will show on your systems.

[johnrellis]

On my main Windows 10 / LR 12.0, similar output:

[Rikk Flohr: Photography]

Lightroom 12.0.1 was released today and contains a fix for this issue. Please refresh your Adobe Creative Cloud App ([Ctrl/Cmd]+[Alt/Opt]+[ R ]) and download the updated version.

Thank you for your patience. 

[johnrellis]

Great, it's a "small" issue but it will help me help others troubleshooting on Windows.