How to get PSCC to use 10 bit/channel framebuffers like CS6 can?

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I have a 30 bit monitor (ASUS PA279Q) and a 30 bit capable video card (AMD W5000). I can get PS CS6 to open 30 bit psd files and display correctly, a smooth 10 bit ramp. When I open the same file with PS CC the steps in the ramp are clearly visible. How do I get PS CC to open and display 30 bit psd files the same as PS CS6?
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Digital_Ed

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Posted 5 years ago

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Chris Cox

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Enable the option in preferences, same as CS6.

It sounds like your video card driver has a problem, and may need to be updated from the GPU maker's website.
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Digital_Ed

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Thanks Chris for the simplistic response.

Of course the 30 bit display is enabled in both CS6 and CC.

I have been in discussion with AMD support and have their latest driver. Adobe has no drivers recommended tor PS CC on their site for Win 7 Ultimate 64.

I as well as many other photographers (I follow photography forums) are having this problem with only finger pointing going on between AMD and Adobe. There seems to be no real effort to find the problem as there are few PS CC users seriously using high definition 30 bit monitors. I also realize that some users with Quadro Kepler cards may not be having this problem.

As a subscriber to the Adobe Cloud system for the first time I am becoming upset with Adobe for not even acknowledging there is a problem with PS CC and FirePro users.
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Chris Cox

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We have no recommended drivers because we only require working drivers - and they update drivers every month or so, fixing various driver bugs and improving performance.

We haven't seen such a problem - when we test 30 bit displays, it works.
And only AMD can tell you why their card and driver combo is not working with Photoshop CC when it worked with CS6 (either the driver says it is not capable, or something is going wrong in the output).
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Digital_Ed

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Thanks Chris. I feel like I am in the middle. I will go back again to AMD and see what I can find out from them.
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Satyajit GP

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I am seeing exactly same problem. I have same setup PA249Q and W5000. I tried ramp.psd and it's showing banding.

Latest post on AMD website says they are working with Adobe for this issue. (http://forums.amd.com/game/messagevie...)

Can Adobe also confirm that so there is some hope and we don't have to RMA hardware ?

Is there are a bug id on adobe side that we can track this with ?
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Chris Cox

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We're talking to the GPU makers all the time. But in our testing, the 30 bit display paths work...
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Satyajit GP

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Can you tell us more about how you test it, I can run same test on my setup and see if that works. Are there any log files to confirm PS is actually doing the 30 bit color initializations. (Then I can take that to AMD/ATI support and pursue further.)
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Satyajit GP

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This reply was created from a merged topic originally titled
PSCC and FirePro (W5000) for 10 bit color workflow.


I have ASUS PA249Q which supports 30 bit colors. I also have AMD ATI FirePro W5000 which also supports 30 bit colors.
I am able to confirm this by using a NEC's10 bit Color Depth Demo Application (http://www.necdisplay.com/documents/S...)

Only place it does not is PS CC. I can not confirm if it works on same setup using PS CS6 because I don't have one and trial copy is not available. (If you make it available I will be willing to test with it.)

AMD has acknowledged that this is something they are working with Adobe, would like to hear the same from Adobe's side and get a tracking/issue id for this.

http://forums.amd.com/game/messagevie...

Monitor Info:
Model name............... PA249
Windows description...... ASUS PA249 PA249
Manufacturer............. Asus
Plug and Play ID......... ACI24B2
Serial number............ D3LMQS094012
Manufacture date......... 2013, ISO week 13
Filter driver............ None
-------------------------
EDID revision............ 1.4
Input signal type........ Digital (DisplayPort)
Color bit depth.......... 10 bits per primary color
Color encoding formats... RGB 4:4:4, YCrCb 4:4:4, YCrCb 4:2:2
Screen size.............. 520 x 320 mm (24.0 in)
Power management......... Active off/sleep
Extension blocs.......... 1 (Unknown - 0x00)

Graphics Card Info:
Graphics Card Manufacturer Powered by AMD
Graphics Chipset AMD FirePro W5000 (FireGL V)
Device ID 6809
Vendor ID 1002
Subsystem ID 0B06
Subsystem Vendor ID 1028
BIOS Version 015.025.000.007
BIOS Part Number 113-C4170400-100
BIOS Date 2012/10/09

Graphics Driver:
Driver Packaging Version 13.152.4-130928a-163380C-Retail
Provider Advanced Micro Devices, Inc.
2D Driver Version 8.01.01.1331
2D Driver File Path /REGISTRY/MACHINE/SYSTEM/ControlSet001/Control/Class/{4d36e968-e325-11ce-bfc1-08002be10318}/0000
Direct3D Version 9.14.10.0984
OpenGL Version 6.14.10.12428
AMD FirePro Control Center Version 2013.0929.129.750
AMD Audio Driver Version 9.0.0.9902

(I am crossposting (with more tech. details) this question this as new topic because I saw other topics on this subject marked as answered but issue is not resolved.)
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Satyajit GP

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Just wanted share that I am able to get PSCC to run in 30 bit color (ramp.psd without bands).

Solution was to ditch FirePro W5000 ($400+) card and move to Quadro K600 ($160) card.

LR was also able show ramp.psd without banding in develop module (which I believe is via DirectX, probably old news...)

HTH...
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Chris McLeod

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I have been hunting around for an answer to this before ordering a W5000 to go with my wide gamut monitor and it appears to have been solved (see http://www.dpreview.com/forums/post/5...). I am seeding this thread with the info since it showed up ever time I googled on this issue over the past 8 months and hopefully this info will help others as it took me a LONG time to find.
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Teodorico Morell

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I am getting color banding on a grey gradient: https://forums.adobe.com/message/8364...

Any ideas?

Thanks!
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Chris Chambers

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After trying many different actions, I am more and more convinced this issue is within Photoshop, and not AMD's drivers.  10 bit worked way back in CS5, and it didn't go away willy nilly.  In all of the versions of CC I have tried, it mostly didn't work.

In the last couple of versions it has been working upon first opening the test ramp file, if CC is not full screen.  (I have a 4K monitor so it is possible there are smaller monitors where it works full screen.)  But set the zoom down to 50% and the banding returns to the ramp indicating a switch back to 8 bit.  Zooming back to 100% may or may not take the banding away.  Other actions purely within Photoshop will also cause the banding to appear.

So again, the issue appears to be in Photoshop CC, which we are all paying for every month now.  This needs to be fixed!