Hi, I just upgraded to Photoshop CS6. In anticipation of this new version, I upgraded to a new graphics card, ATI Radeon HD 5770, in my first slot. I have my main monitor, which is a Cintiq 21UX, plugged into that card. I still have two older graphics cards, both NVIDIA GeForce 7300 GTs, in slots #2 and 4. I have two Apple monitors connected to the card in slot #4. When I first opened the program I received a message stating "Photoshop detected graphics hardware that is not officially supported". I checked under Preferences-Performance and it is only detecting my NVIDIA GeForce 7300 GT and the "Use Graphics Processor" box is checked. The new Radeon graphics card is not detected. I checked the list of Adobe tested GPUs and, if I read it correctly, it is listed as one of the approved cards. I'm working on a 2 x 3 GHz Dual-Core Intel Xeon Mac running OS Lion version 10.7.3. Can anyone shine some light on this for me?
I think what's not officially supported is running two three different graphics cards in the same system.
Why are you doing this? I think you can run all 3 monitors from the one ATI card.
It originally had 3 NVIDIA GeForce 7300 GT cards installed. This is what was originally in the machine when I bought it. I run a total of 3 monitors- one a Cintiq that I do my Photoshop painting on, one I use to view my work at full size and to have reference on and the third I use for my palettes. The NVIDIA cards come with 2 ports and I have my two support monitors plugged into one of these cards. I only wanted to upgrade one graphics card thinking this would be for my main monitor (Cintiq). This new card only has one port. If I upgrade everything to the same new graphics card, it seems I'll have to have a total of 3 of the Radeon cards to support the three monitors, is that what you're saying?
I don't know that much about Macs - I'm a PC guy - but every ATI Radeon card I've seen has 3 ports on it, and ONE card can support 3 monitors with the right cabling. I have two monitors plugged-into my ATI Radeon HD 5670 and there's still one open port on the card.
A-ha! I guess it would work with 3 monitors, I didn't see the other two ports as they were two Mini DisplayPort outputs. I don't think I can connect my other two monitors to it unless there is some kind of adapter. I'll have to look into this. Thanks for pointing that out.
I think we really need a Mac expert to chime in, but yes, I'd imagine you'll want to remove the other two cards. The conflict is likely that Photoshop doesn't quite know what parts of what drivers to use to do its GPU accelerations. There *may* be some need to clean the remants of their drivers out of your system as well - there usually is on PCs on which a nVidia->ATI switch is made.
I found the proper Mini Displayports to the dual-link dvi adapters online, so using the one card now should not be a problem. I'll still need to get more info on the "remnants" concern. Thanks for the advice.
Apple's support of multiple video display cards is abysmal. Don't even think of being able to run two different graphics card simultaneously unless the cards are absolutely identical. You will have nothing but grief.
Noel and Schmidtchen123...you've got part of this solved already. Maybe I can help clarify the rest. I'm an Apple integrator and consultant and currentlyupgrading a Mac Pro 1,1 (first generation) for Photoshop CS6 use. (Looking forward to finally having a version of PS that is 64 bit and can address all 32GB RAM.)
From Adobe Forums:
* Note: ATI X1000 series and nVidia 7000 series cards are no longer being tested and are not officially supported in CS6 – some basic GL functionality may be available for both these cards.(my emphasis)
Pull the nVidia cards. As Noel said, you can run three monitors off the ATI 5770 with adapters. Not all adapters are the same so keep that in mind. Be sure to be running at 10.6.8 or higher.
(BTW, use the hidden Expansion Slot Utility to adjust PCIe bandwidth to fit your use of the slots if need. Located System/Library/CoreServices/Expansion Slot Utility). This is a useful tool older Mac Pros.
Please read down on this page to the part about adapters. He's correct.
Lastly, make sure you are not having brush, cloning stamp and othe pallette issues. If you are try working with PS preferences under performance. OpenGL on/off.