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margarett26271336
Inspiring
May 29, 2018
Answered

Windows 10 April 1803 update has broken Adobe Photoshop 10-bit color support

  • May 29, 2018
  • 5 replies
  • 2196 views

I've submitted this issue to Microsoft but I thought I would add this for Adobe also.

The Windows 10 April 1803 update has broken Adobe Photoshop 10-bit color support.

I'm using Photoshop v19.1.4 but I rolled back through v19.1.3, v19.1.2, v19.1.1 and v19.1 and it isn't an issue with Photoshop.

I'm using a Dell Precision 7720 using Quadro P4000 card.

Updated quadro p4000 drivers. Didn't fix issue.

I'm using this monitor which is true 10 bit colour: http://www.dell.com/en-au/work/shop/dell-ultrasharp-32-ultra-hd-4k-monitor-with-premiercolor-up3216q/apd/210-agox/monitors-monitor-accessories

Test files here:

https://1drv.ms/u/s!Av6MFU3sViDuvzGqhVUCv4nxb34a

and

https://1drv.ms/u/s!Av6MFU3sViDuvzAYIRy9uuqWGaEC

I can see banding on these images with 10 bit support, banding shouldn't be visible.

I've set 10 bit support in Adobe Photoshop using Edit menu, Preferences, Performance, Advanced Settings. Also check Nvidia Control Panel to see if 10 bit support is turned on.

10 bit color support worked perfectly before installing windows 10 april 1803 update

This topic has been closed for replies.
Correct answer margarett26271336

This issue has been FIXED when using the latest driver from Nvidia:

Version:R410 U4 (411.95)  WHQL
Release Date:2018.11.15
Operating System:Windows 10 64-bit
Language:English (US)
File Size:391.83 MB

5 replies

M
margarett26271336AuthorCorrect answer
Inspiring
November 21, 2018

This issue has been FIXED when using the latest driver from Nvidia:

Version:R410 U4 (411.95)  WHQL
Release Date:2018.11.15
Operating System:Windows 10 64-bit
Language:English (US)
File Size:391.83 MB
M
margarett26271336Author
Inspiring
August 20, 2018

This issue is still unresolved by both Adobe, Miscrosoft and Nvidia.

The latest 391.89 drivers do NOT fix Photoshop in Windows 1803 build 17134.228

I've tested with a NVIDIA Quadro P4000 laptop card using the 10 bit Dell UltraSharp 32 Ultra HD 4K Monitor with PremierColor: UP3216Q.

What's the point in investing in a 10 bit workflow if it stuffs up?! This is a crap situation. Please fix Adobe.

D Fosse
Community Expert
D FosseCommunity Expert
Community Expert
August 20, 2018

margarett26271336  wrote

What's the point in investing in a 10 bit workflow if it stuffs up?! This is a crap situation. Please fix Adobe.

That's the wrong end of the stick. A 10-bit capable monitor won't compensate for other shortcomings in the display system. But a good monitor will make it more or less irrelevant. Because you won't see any banding anyway, 8 or 10 bits.

I agree, in an ideal world we should have at least 10 or 12 bit depth as a matter of routine. In the real world, 98% of all displays in use are actually 6 - six - bit + 2 bit dithering. That's all TN panels and hence the whole gaming market. So there's no market pressure. This isn't something the majority wants.

I haven't updated the Quadro driver yet, but I probably will later this week. I really don't consider this a big deal. Working with real images instead of test gradients, you can't tell the difference.

BTW - Adobe can't fix MS or NVidia problems. AFAIK nothing has changed in Photoshop.

cicciog10675853
cicciog10675853
Participating Frequently
June 16, 2018

It's a bug of latest windows build.... I Have same issues with quadro m2000 and Eizo monitor

You can download "NEC 10 bit demo" and launch it.. (it's a program for testing 10bit, and it's external of Adobe products)...

If you install the QNF version driver for Quadro, 10bit works, but if you reboot your PC, 10bit doesn't work; but you go to Nvidia control panel, set 8bit, apply, and set 10bit... now 10bit works... but at every reboot, 10bit it's "disabled"

I advised Nvidia and Microsoft for fix the bug...

    D Fosse
    Community Expert
    D FosseCommunity Expert
    Community Expert
    June 16, 2018

    You don't need an external demo app for this. Just draw up a shallow gradient in a Photoshop document - not the full 0-255 range, it's easier to see with, say, a 20-80 gradient. Make the file small enough to display at 100% zoom ratio.

    With this gradient, you will immediately see any 8 bit banding. If you have 10-bit display working and operational, it will be perfectly smooth.

    Sue.Martin - a synthetic gradient is one you make in Photoshop, as opposed to a real photograph.

    cicciog10675853
    cicciog10675853
    Participating Frequently
    June 16, 2018

    Ok, but latest windows build have a bug for 10bit color...

    With Windows 1709 build,  works fine...

    Sue.Martin.1
    Sue.Martin.1
    Known Participant
    June 15, 2018

    My sympathies, Margaret, for such a vexing problem!

    I am considering whether to upgrade to a monitor with 10-bit color (or perhaps 8 + 2) and a Quadro GPU.  Can you, or friend Fosse, please explain the terms "synthetic gradient" and, if this is the correct wording, "natural gradient?"

    Margaret, have you tried reverting to the last-but-one Quadro driver?  Have either of you reported the problem to Nvidia and/or Adobe?

    What a headache! 

    D Fosse
    Community Expert
    D FosseCommunity Expert
    Community Expert
    May 29, 2018

    I don't think it's Windows. I noticed it some time after updating the Quadro driver from 385 to 391 - but before the 1803 Windows update. With the 385 driver it worked reliably and consistently.

    The 391 driver is apparently still current.

    I've no idea why 10 bit support is so fragile. A butterfly flapping its wings in the Caribbean seems to be enough to break it.

    Anyway, it's no big concern and it really makes no practical difference - at least not if your monitor is internally calibrated in high bit depth, so that the 8-bit banding is perfectly regular. You will never see any banding in a real-world photograph, only in synthetic gradients.

    It might be more of an issue for those with third-party calibrators that make adjustments in the video card.

    M
    margarett26271336Author
    Inspiring
    May 29, 2018

    "Anyway, it's no big concern and it really makes no practical difference"

    - so therefore you are saying 10 bit color isn't important?

    It is to me.

    D Fosse
    Community Expert
    D FosseCommunity Expert
    Community Expert
    May 30, 2018

    margarett26271336  wrote

    so therefore you are saying 10 bit color isn't important?

    Yes, that's what I'm saying - with two qualifiers:

    If you're a digital painter and work with synthetic gradients, then yes, you will see the difference. In a photograph - no way. There's always just enough noise to break up the banding.

    With a true hardware calibrated monitor, one that performs all calibration adjustments internally in 14-16 bit depth, the output signal to the panel is clean, and all such 8-bit banding is perfectly regular with even steps.

    With third-party calibrators, however, it's a different story. These calibrators don't access the monitor's internal high-bit LUT, and have to adjust the video card instead. If this happens in 8 bit depth, the result may be pretty unpleasant with very irregular banding and even obvious color bands. In this case a 10 bit signal path will be a vast improvement.

    I'm a photographer and never see any banding on my two Eizo CG's anyway, so it's no big deal to me. I just check from time to time, mostly out of curiosity.

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