15 Replies Latest reply: Dec 2, 2014 7:57 PM by csmcolo RSS

    PS cc and 30 bit

    Ed_Engberg Community Member

      When will PS CC have  30 bit capability? I know PS CS6 does have it so it is puzzling why PS CC does not.

        • 1. Re: PS cc and 30 bit
          Chris Cox Adobe Employee

          Photoshop CC has it as well. I'm not sure why you think it doesn't.

           

          But of course, it does require an OS, video card, and display that are capable of handing 10 bit/channel framebuffers. (MacOS still can't)

          • 2. Re: PS cc and 30 bit
            Ed_Engberg Community Member

            I have all three (ASUS PA279Q monitor, AMD FirePro W5000 video card and Win 7 Ultimate 64 OS) and 30 bit does work with CS6 on my computer system. There is a 10 per bit per channel test ramp psd file (can be found on the internet) that can be opened in PS CS6 and PS CC and I have both. In PS CS6 the ramp is smooth. In PS CC the steps can be seen in the ramp. Many photographers are aware that PS CC does not work with 30 bit files. So my question is when will Adobe enable 30 bit processing? There are many of us asking this question.

             

            Added:

            It seems that PS CC can work in higher than 8 bit per channel but cannot open a psd file that has higher than 8 bits per channel and display higher than 8 bits per channel for that file.

            An experiment; in PS CS6 create a 32 bit mode file and create a linear ramp from black to white. Adjust the exposure to show mostly black to mid gray. The ramp will be smooth viewed on my 30 bit monitor. If I move the PS window to either of the other two 24 bit monitors the steps in the ramp can be seen. (I should explain I have a 3 monitor system with the desktop spread across all three.)

            Save the file as a psd and open in PS CC. It will be in 32 bit mode but the ramp will have the steps visible on the 30 bit monitor and 24 bit monitors. The comparison is that the same file viewed using PS CS6 has the ramp smooth on the 30 bit monitor and stepped on the 24 bit monitors. This says to me PS CC cannot display properly any opened file that contails more than 8 bits per channel (8 bit mode).

            • 3. Re: PS cc and 30 bit
              Chris Cox Adobe Employee

              This is the first I've heard that CC doesn't work with 30 bit... because it does work with 30 bit displays.

               

              Adobe has enabled 30 bit processing - that hasn't changed since CS6.

              There is nothing else to enable - it's already there, and working.

               

              You may have older drivers or some other problem on your system preventing it from working correctly.

              But Photoshop already does what you're asking.

              • 4. Re: PS cc and 30 bit
                Ed_Engberg Community Member

                I do hjave the latest drivers as I just did the installs for my new video card and monitor as well as the latest MS and bios updates. I am an electronic design engineer and have been building computers for over 40 years so I am not new to software and hardware problems.

                 

                What I am seeing is that PS CC casnnot open a psd file and display more than 8 bits per channel. PS CS6 can do this. I am not alone in believing PS CC has a problem. Several other photographers advised me of this on other forums as I was researching which monitor and card to buy.

                 

                Of course I will alway accept that my computer has a problem when I can prove it. However, too many other photoraphers believe PS CC does not work with 10 bit files.

                 

                As in my previous post, I believe PS CC can work in larger than 8 bit mode but that is not the same as opening and displaying a 10, 16 or 32 bit file correctly.. I am not alone believing this.

                • 5. Re: PS cc and 30 bit
                  Chris Cox Adobe Employee

                  Photoshop CC can, and does for other users.

                   

                  So there is something about your setup that is preventing the driver from using 10 bit/channel framebuffers in Photoshop CC.  You might want to contact AMD and work with them to diagnose your setup to see why it is not working on your system.

                  • 6. Re: PS cc and 30 bit
                    Pictus 171 Community Member

                    It is not working for FirePro users, but it is working for Quadro users?


                    http://forums.amd.com/game/messageview.cfm?catid=485&threadid=167674&forumid=11

                    • 7. Re: PS cc and 30 bit
                      PJA Media Community Member

                      There is definitely an issue with FirePro cards and PS CC on Windows 7 x64. I tested 10bit color when it was first introduced in CS5 a couple of years ago, when I got my first 10bit capable system - in fact I gave up trying to get it working on a nVidia Quadro card at the time and moved to a FirePro v4800 - hooked in via displayport cable to my NEC PA271 display, I was able to see the ramp.psd file (from ATI) displayed perfectly smoothly for the first time. I tested CS6 with this setup also and from what I recall, it worked fine there also. Then I tried PS CC on a trial and to my surprise, despite everything being enabled in PS CC (and with no changes to my graphics driver settings - so 10bit color still enabled), I could not get 10bit colour to work at all on PS CC. I recently upgraded my system - actually built a brand new 4th Gen i7 workstation with a FirePro w7000 GPU - and tested PS CC again after spotting this thread - and again, even though tPS suggests 10bit is supported - it just doesn't work on the FirePro w7000, despite it all being enabled, and the aero theme being switched off etc in Win7. I read on another thread that someone had received an e-mail from ATI suppoirt to say that they were working with Adobe to try to resolve this issue. Chris, can you please confirm if this is the case from your understanding?

                      • 8. Re: PS cc and 30 bit
                        Ed_Engberg Community Member

                        I spent far too much time, starting in Sept this year, with different video boards that work with 30 bit displays, newest drivers and any set up I could conceive. Could not make opening 30 bit files with PS CC work. I had discussions with engineers (not just tech support) at the board manufacturers and they are blaming Adobe for having a problem in PS CC. I finaly gave up and am waiting to hear that Adobe has discovered the problem and that now it works. Chris, simply stating that it does work is no proof or help for those of us for which is doesn't work and there are many of us. Have you tried to open a 10bit per sample file in PSCC? If you need a 10 bit per sample file I and others can provide one.

                        • 9. Re: PS cc and 30 bit
                          Tempest790

                          Yes, I can also state Photoshop CC (64 bit version) 30 bit color mode does not work with my Quadro K2000 card.  No issues with CS6 only CC.  Just downloaded the latest nVidia drivers today (2-4-14) and still no luck.  Not even force 30 bit color mode works in the driver option.  30 bit color is turned on in Photoshop CC.  Tested using the ramp.psd sample file.

                           

                          They definitely need to issue a patch for this.

                          • 10. Re: PS cc and 30 bit
                            Knife_Master

                            Chris,

                             

                            I have same problem too for a long time and still waiting to be fixed by Adobe.CS6 works with 30 bit processing but CC doesn't. I read the forums for hours, I tryed every way but nothing changed. A lot of people complain about the same problem and no one knows the solution.

                            I tryed the ramp.psd file with Lightroom 5.4 today, and 30 bit works with even Lighroom. Can you please tell us the exact solution about this problem? Or maybe CC needs an update?

                            (I use Win7 ultimate, firepro V4900 by the way)

                             

                            Thank you.

                            • 11. Re: PS cc and 30 bit
                              paul goodlight

                              Just started trial of PS CC 2014.2.1 to try this out.

                               

                              I have AMD FirePro W7000 (PS supported 30bit color GPU), displayport-connected to NEC pa271w (10bit capable display). My AMD graphics driver has 10bit color enabled, and in PS under preferences I have 30bit color enabled. Windows 8 x64 has the aero desktop disabled.

                               

                              The ramp.psd file I obtained shows banding, so even the very latest version of PS does not display 30bit color properly on the FirePro w7000. I'm staggered that this issue has not been resolved since its introduction with the CC version of PS (as the ramp.psd file displayed perfectly smoothly when I loaded it in PS CS6).

                               

                              I've kind of given up hope this will ever been resolved. I just come back here occasionally with the glimmer that there may have been some progress with this issue. Sadly none to date.

                              • 12. Re: PS cc and 30 bit
                                Chris Cox Adobe Employee

                                It works on the Photoshop side of things. But it does require a driver and display that are 10 bit/channel capable.

                                • 13. Re: PS cc and 30 bit
                                  paul goodlight Community Member

                                  Chris,

                                   

                                  Thanks for the response. As I mentioned in my post, my driver has 30bit color enabled, my w7000 GPU is connected to my 10bit compatible display using display port (required for 10bit color) and everything is enabled as it should be). As also mentioned, it worked fine in CS6 (on this same setup) - just not in CC now.

                                   

                                  I even updated my ATI GPU driver to the very latest revision last night, but again no improvement. I even thought that the issue may be due to me having my second (non 10bit compliant) display connected to the w7000 (using DVI) at the same time as my 10bit NEC monitor, so disconnected it, rebooted, but still no joy with 10bit in PS. Then I remembered that in CS6 10bit worked fine with these same two displays connected in the same way.

                                   

                                  So, for me I don't have a solution unfortunately. Thanks anyway.

                                  • 14. Re: PS cc and 30 bit
                                    szl1973

                                    Hello,

                                     

                                    I use NVIDIA K5200 GPU. If I load the "10 bit test ramp.psd" test file, then I see strips on the image. But, when I open the Preferences menu (or hit CTRL + K), the image changes at once to normal, the strips going to disappear. I think, taht is a PS issue, and must be corrected by Adobe.

                                    • 15. Re: PS cc and 30 bit
                                      csmcolo

                                      I have been searching for a solution to the same issue since I want to get an AMD card and came across what looks like success in Re: UPDATE (All working now): PC Talk Forum: Digital Photography Review. The initial success announcement was echoed by others and I am hopeful it is resolved. I have my card on order and will be testing and reporting back.