P: 32bit document shows banding on Mac Mini when GPU enabled

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Participant ,
Apr 14, 2022 Apr 14, 2022

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I've just upgraded my 2018 Mac Mini to macOS monterey.

 

Now whenever i open a 32bit exr image it shows extreme banding. It happens on Photoshop 2021 and 2022.

If i disable the advanced graphics all banding goes away, however it is extremely buggy with the advanced graphics turned off. Layer masks often show incorrectly when at different zoom levels with big squires either showing as white or black. The transform handles don't show up unless i zoom out and in again, the heal tool workings just downt show at, doesn't go dark grey, if i zoom out and in again it suddenly fixes it.

 

Where is the bug? In Monterey GPU drivers or within photoshop?

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correct answers 1 Correct answer

Adobe Employee , Apr 25, 2022 Apr 25, 2022
Thank you all for this information.  I will log a ticket for the team to investigate.

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Adobe Employee ,
Apr 14, 2022 Apr 14, 2022

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Hello,

Please share your Photoshop System Info.  You can copy the text in the dialog under Help > System Info…

Paste it into this thread or attach as a text file. A screenshot of PS with a banded image (if possible) would also be helpful.

Thank you.

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Participant ,
Apr 14, 2022 Apr 14, 2022

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Screenshot 2022-04-14 at 23.45.27.png

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Participant ,
Apr 14, 2022 Apr 14, 2022

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I've tried posting my system info twice but it keeps getting deleted

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Adobe Community Professional ,
Apr 14, 2022 Apr 14, 2022

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The banding isn't in the data itself but in the preview. That's why disabling GPU doesn't show it (and there would be no such banding in that data). You also may not have a full, high-bit display path but the bottom line is, with GPU off, it disappears.


When turning OFF GPU works, it's a GPU bug and you need to contact the manufacturer or find out if there's an updated driver for it. On the Mac, that's part of the OS update(s) so if this is the latest OS version, you may need to roll back a release.
Also see: https://helpx.adobe.com/photoshop/kb/acr-gpu-faq.html
Also see: https://community.adobe.com/t5/photoshop-ecosystem-bugs/weird-ps-bug-psd-file-looks-messed-up/idi-p/...


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Adobe Employee ,
Apr 18, 2022 Apr 18, 2022

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Please try splitting your system info into two separate posts.  Perhaps it’s too much text for a single post. Thanks!

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Participant ,
Apr 22, 2022 Apr 22, 2022

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The problem is definately Photoshop. The 30bit display option is greyed out.

I have Photoshop 2022, 2021 and 2020 all installed on the same machine.

Both 2022 and 2021 have the same problem.

2020 is absolutely fine, no banding at all and it also doesn't have 30bit display greyed out.

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Participant ,
Apr 22, 2022 Apr 22, 2022

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Adobe Photoshop Version: 23.3.0 20220405.r.394 3413e05 x64 Number of Launches: 9 Operating System: Mac OS 12.3.1 System architecture: Intel CPU Family:6, Model:14, Stepping:10 with MMX, SSE Integer, SSE FP, SSE2, SSE3, SSE4.1, SSE4.2, AVX, AVX2, HyperThreading Physical processor count: 6 Logical processor count: 12 Processor speed: 3200 MHz Built-in memory: 65536 MB Free memory: 27767 MB Memory available to Photoshop: 59718 MB Memory used by Photoshop: 90 % SAM SDK Version: 2.0.0-main.1076 ACP.local Status: - SDK Version: 2.4.1 - Core Sync Status: Reachable and compatible - Core Sync Running: 5.8.0.19 - Min Core Sync Required: 4.3.66.0 Live Edit Client SDK Version: 3.90.3 Manta Canvas: Enabled. Alias Layers: Disabled. Modifier Palette: Disabled. Highbeam: Enabled. Touch Bar Property Feedback: Enabled. Image tile size: 1024K Image cache levels: 4 Font Preview: Medium HarfBuzz Version: 2.8.1 TextEngine: Unified Text Engine ======= GPU
Native API stable: True OpenGL API stable: True OpenCL API stable: True GPUDeny: 0
GPUForce: 0
useGPU: 1
useOpenCL: 1
isGPUCapable: 1
GPUName: Intel(R) UHD Graphics 630
GPUVendor: INTEL
IsNativeGPUCapable: 1
IsOpenGLGPUCapable: 1
IsOpenCLGPUCapable: 1
HasSufficientRAM: 1
GPU accessible RAM: 1,610 MB
Required GPU accessible RAM: 1,500 MB
UseGraphicsProcessorChecked: 1
UseOpenCLChecked: 1
Display: 1 Display Bounds: top=0, left=0, bottom=1440, right=2560 Main Display ------- Sniffer output
[0 ms]
Launch GPUSnifferThread

[0 ms]
Start RunAllAPIs

[0 ms]
"/Applications/Adobe Photoshop 2022/Adobe Photoshop 2022.app/Contents/MacOS/sniffer" -baseTimeMS=378854 -comment=Photoshop Version: Adobe Photoshop 23.3.0 20220405.r.394 3413e05 x64

[707 ms]
Start sniffer 2022-04-22 09:58:28
# Photoshop Version: Adobe Photoshop 23.3.0 20220405.r.394 3413e05 x64
sniffer -baseTimeMS=378854 -comment=Photoshop Version: Adobe Photoshop 23.3.0 20220405.r.394 3413e05 x64

{25 ms}
Start platform native
# displays: 1
Display 0
Display: 685396481
Main: TRUE
Built in: FALSE
Stereo: FALSE
Bounds: (0, 0) -> (2,560, 1,440)
Dimensions: (2,560 1,440)
Physical size: (596.55 335.56)
Pixel size: (0.233028 0.233028)
Dynamic range: (0 1)
Potential dynamic range: (0 1)
Reference dynamic range: (0 0)
Attached Device: (DeviceID name=Intel(R) UHD Graphics 630 index=0 preferred=1)

# devices: 1
Device 0
Name: Intel(R) UHD Graphics 630
Preferred: TRUE
Power Envelope: INTEGRATED
Attachment: EMBEDDED
# attached displays: 1
685396481
GPU accessible RAM: 1,610 MB
VRAM: 0 MB
Dedicated System RAM: 0 MB
Shared System RAM: 1,610 MB
API version: 1.0 (1.0)
Device version: 1.0 (1.0)
Vendor name: INTEL
Driver: UNKNOWN
Driver date: UNKNOWN
Driver age: UNKNOWN
Driver version: UNKNOWN
End platform native
{264 ms}

{264 ms}
Start platform OpenGL
# displays: 1
Display 0
Display: 685396481
Main: TRUE
Built in: FALSE
Stereo: FALSE
Bounds: (0, 0) -> (2,560, 1,440)
Dimensions: (2,560 1,440)
Physical size: (596.55 335.56)
Pixel size: (0.233028 0.233028)
Dynamic range: (0 1)
Potential dynamic range: (0 1)
Reference dynamic range: (0 0)
Attached Device: (DeviceID name=16925961 index=0 preferred=1)

# devices: 1
Device 0
Name: Intel(R) UHD Graphics 630
Preferred: TRUE
Power Envelope: INTEGRATED
Attachment: UNKNOWN
# attached displays: 1
685396481
GPU accessible RAM: 1,536 MB
VRAM: 1,536 MB
Dedicated System RAM: 0 MB
Shared System RAM: 0 MB
API version: 2.1 (2.1 INTEL-18.5.8)
Device version: 2.1 (2.1 INTEL-18.5.8)
Vendor name: INTEL
Driver: UNKNOWN
Driver date: UNKNOWN
Driver age: UNKNOWN
Driver version: UNKNOWN
GLSL version: 1.20 (1.20)
CGL ID: 16925961
Display mask: 255
End platform OpenGL
{278 ms}

{278 ms}
Start platform OpenCL
# displays: 0

# devices: 1
Device 0
Name: Intel(R) UHD Graphics 630
Preferred: TRUE
Power Envelope: INTEGRATED
Attachment: UNKNOWN
# attached displays: 0
GPU accessible RAM: 1,610 MB
VRAM: 1,610 MB
Dedicated System RAM: 0 MB
Shared System RAM: 0 MB
API version: 1.2 (OpenCL 1.2 (Feb 12 2022 01:56:27))
Device version: 1.2 (OpenCL 1.2 )
Vendor name: INTEL
Driver: UNKNOWN
Driver date: UNKNOWN
Driver age: UNKNOWN
Driver version: UNKNOWN
Bandwidth: 25 GB / s
Compute score: 106.733
Device name string: Intel(R) UHD Graphics 630
Device vendor string: Intel Inc.
Platform name string: Apple
Platform vendor string: Apple
End platform OpenCL
{704 ms}

Exit code kExitNormal
End sniffer 2022-04-22 09:58:29
[kStatusNormal, kExitNormal]

[707 ms]
Finish RunAllAPIs

[2513 ms]
Start GetSnifferResult

[2513 ms]
Finish GetSnifferResult

------- Sniffer output
======= GPU

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Adobe Employee ,
Apr 22, 2022 Apr 22, 2022

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Thank you for sharing your system info.  Have you tried deleting your preference?

  1. Quit Photoshop
  2. Navigate to Photoshop's Preferences folder. macOS: Users/[user name]/Library/Preferences/Adobe Photoshop [version] Settings Windows: Users/[user name]/AppData/Roaming/Adobe/Adobe Photoshop [version]/Adobe Photoshop [version] Settings
  3. Remove the file called MachinePrefs.psp from inside the settings folder and move it to your desktop
  4. Restart Photoshop

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Participant ,
Apr 22, 2022 Apr 22, 2022

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Yes i've tried that, interestingly after doing this i got an extra option become visible under "Advanced Settings" it didn't even appear before. Called "GPU Compositing" which isn't greyed out and is checked.

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Adobe Community Professional ,
Apr 22, 2022 Apr 22, 2022

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Upload the document you see banding to something like Dropbox so we can examine it. 

There should be NO banding in the data. Again, the banding can be in the display path. Those of us with confirmed high-bit display paths can view your document. Or... 

Download this, view it at 100%, do you see banding? 

https://www.dropbox.com/s/s14f4w7dq85r7oo/10-bit-test-ramp.zip?dl=0

 


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Apr 22, 2022 Apr 22, 2022

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Yes i see banding on your document.

 

Im using a PA272W which supports 30bit display

 

If i open your document in Photoshop 2020 i do not see any banding in your document or my own 32bit document

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Adobe Community Professional ,
Apr 22, 2022 Apr 22, 2022

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You should not see any banding on my document. 

That your display is high bit isn't enough, the entire path has to be high bit. On my system, I see no banding on that test document, it is completely smooth. 

It's going to be very difficult to define what in your video path is causing this banding but it isn't in the data. I could be your video card, driver or anything within that entire path. With a high bit display alone, banding is reduced but not elimiated entierly. 


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Apr 22, 2022 Apr 22, 2022

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I have banding in Photoshop 2021 and 2022

I have no banding in Photoshop 2020

Same machine

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Adobe Community Professional ,
Apr 22, 2022 Apr 22, 2022

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Try viewing my 10-bit ramp PSD in Apple Preview at "Actual Size". Do you see banding? 


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Apr 22, 2022 Apr 22, 2022

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Screenshot 2022-04-22 at 19.02.00.png

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Participant ,
Apr 22, 2022 Apr 22, 2022

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No banding on your document in apple preview either

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Adobe Community Professional ,
Apr 22, 2022 Apr 22, 2022

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No banding on your document in apple preview either

 

Confused by 'either'. No banding in Preview but banding (or not) in Photoshop? 

Again, what would really be helpful is an upload of the document you are viewing that shows this banding. 


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Apr 22, 2022 Apr 22, 2022

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No banding in apple preview

No banding in Photosop 2020

Banding in Photoshop 2021

Banding in Photoshop 2020

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Participant ,
Apr 22, 2022 Apr 22, 2022

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Here a file

Test File 

There are no issues with the file in Photoshop 2020.

There are banding issues with this file in Photoshop 2021 and 2022

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Adobe Community Professional ,
Apr 22, 2022 Apr 22, 2022

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Well, more and more functionality in newer versions moves to GPU so that might explain the issue, especially IF you don't see banding with GPU off (do you?).

I see no banding on the image you just provided at 100% zoom but it's rather small. I'm also at a loss as to what's up with the embedded profile (Adobe RGB 1998 linear rgb profile) but if I assign Adobe RGB (1998) I still see no banding. 

Even at 200% zoom, no banding. 


Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"

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Participant ,
Apr 25, 2022 Apr 25, 2022

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I see no banding in Photoshop 2020 which suggests it can't be a driver issue unless its the switch from OpenCL to Metal.

With no banding in Photoshop 2020 but banding being present in 2021 and 2022 it must be how Photoshop is interpreting the file which surely suggests a Photoshop bug rather than a display driver bug.

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Adobe Employee ,
Apr 25, 2022 Apr 25, 2022

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Thank you all for this information.  I will log a ticket for the team to investigate.

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