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Old Apr 28, 2010, 10:51 AM   #1
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caveman-jim
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ATI Technologies Eyefinity FAQ

The purpose of this thread is to help clarify the pre-requisites and configuration steps needed for ATI Eyefinity Technology. If you have a question that isn't answered in the following list, please post it and we'll try to answer it for you.



  • Is this the Official AMD ATI Eyefinity Frequently Asked Questions list?
    No. That is located HERE.
  • What is AMD/ATI Eyefinity?
    AMD/ATI Eyefinity is a multi-display technology that allows mutliple attached displays to appear as a large surface spanning many panels. This allows games and other apps to use more pixels than they normally would. Read our examination of ATI Eyefinity technology here and here.
  • What cards support ATI Eyefinity?
    The AMD ATI HD 5000 series support Eyefinity 3, to use three displays in an Eyefinity group. Specific models can use more, such as the HD 5570 which supports 4 display Eyefinity (if equipped with two displayport outputs), and the Eyefinity 6 edition cards, which support upto six panels in an Eyefinity group. AMD's Add-In Board partners can specify different outputs if they wish, such as a 5 output model.

    The AMD Radeon HD 6000 series support Eyefinity, to various levels depending on output configuration. The 6800 & 6900 series support 4 displays out of the box, 5 for the 6990. DisplayPort 1.2 allows daisy-chained displays (3 per output) enabling 6 displays on dual-DP equipped cards - you will need an MST hub or DP 1.2 monitor with daisychain support for this (none known as available yet). Sapphire have Flex edition cards that integrate an Active DP-HDMI adapter into their PCB, permitting 3 'legacy' digital outputs or Eyefinity 5 with two additional DisplayPort monitors. See below for more details on 'legacy' displays and montiors.
  • What displays can I use?
    There is no real restriction on they types of displays, but ideally you'll want to use panels that match resolution, response time, color and brightness. The smaller the bezel the better.
  • Can I use three DVI monitors with Eyefinity? What about HDMI?
    For ATI Eyefinity to work you must use the DisplayPort output on the card. The other two maybe DVI or HDMI, depending on the options your card has. Sapphire FLEX edition cards include three non-DP output capbilities, such as 2xDVI + HDMI (and usually a HDMI to DVI adapter will convert).
  • I don't have a DisplayPort monitor, what do I do?
    You can use a Active DisplayPort adapter to convert to DVI or HDMI. Active adapters are powered, usually by USB, and add the necessary timing and centering signals that DVI or HDMI need to work correctly. You can find a list of validated adapters here. The best adapter to use for resolutions up to 1920x1200 are the new Single-Link self powered DisplayPort adapters, detailed here.
  • Can I use a Passive DisplayPort adapter?
    The display engine built into the HD 5000 & 6000 series is capable of generating two concurrent digital outputs with timing, and one DisplayPort output. DVI and HDMI signals need timing and centering information for the displays to work. Without this information, the screen can't sync properly, and the display will fail to show correctly, if at all. Passive DisplayPort adapters don't generate the timing signals required for the DVI or HDMI display, and so won't work for Eyefinity.

    ATI Radeon HD 5870 Eyefinity 6 edition cards can use passive DisplayPort adapters, and in fact ship with 5 in the box to use with the six mini-DisplayPort outputs built into the product (1 mini-DP to DP, 2 mini-DP to DVI, and one mini-DP to HDMI). You are still limited to two legacy outputs without using an active adapter, however, so if you have more than two displays that don't support a native DisplayPort connection you'll need additional, active, adapters.
  • What Games & Applications support AMD/ATI Eyefinity?
    Many games will work without any changes, and most newer titles are being written with AMD/ATI Eyefinity support in mind. You can find a list of ATI Eyefinity Ready and Validated titles here.
  • Can I mix different size displays?
    Previously ATI Eyefinity forced all displays in an Eyefinity group to be the same orientation and resolution. As of AMD Catalyst 11.10 you can officially run dissimilar monitor sizes.

    For the AMD Radeon HD 5000 series, the Single Large Surface is limited to a maximum resolution of 8000 pixels in any one axis, and a maximum of 5 displays (portrait or landscape, using Catalyst 11.10 or later). On the AMD Radeon HD 6000 series, the maximum SLS is 16000x16000, for DX11; DX9 and DX10 will not permit this size, meaning Aero desktop will need to be disabled and only DX11 mode games will use the full resolution size.

    If you use displays of different sizes and resolutions, the resulting AMD/ATI Eyefinity group will be limited to the highest common resolution of the displays on all panels. If you have two 22" 1920x1080 displays and a 24" 1920x1200, all three will run in 1920x1080.

    You may not yet mix a portrait - landscape - portrait configuration, for example two rotated 20" monitors next to a 30" one.
  • My displays are pretty similar, but the colors aren't quite right - can I adjust this?
    Yes, Catalyst 10.3 and newer support per display color and brightness adjustment within an ATI Eyefinity group.
  • Do the bezels get in the way?
    You can adjust your Single Large Surface (SLS) to include bezel compensation. This allows the display to replicate more accurately the sensation of looking out of a window with panes of glass in it. This is useful primarily for gaming, to increase immersion, but less useful in desktop use.
  • What is Bezel Compensation?
    Bezel compensation is a method to account for the 'dead space' between panels. In real life when you look out of a window, part of the view is obstructed. Bezel compensation allows AMD/ATI Eyefinity to replicate this, with extra pixels mapped under the bezels. The Bezel compensation wizard allows users to fine-tune this to their specific panels.

    As of AMD Catalyst 11.10 the 3% pixel density variance restriction was removed, see here for more details from AMD's Stereo3D & Eyefinity product manager Shane Parfitt.
  • I don't want to use AMD/ATI Eyefinity all the time, can I switch it on and off quickly?
    Vision Engine Control Center profiles support AMD/ATI Eyefinity groups, so that you can set up multple settings with active panels and resolutions. Bezel compensation and panels being enabled/disabled are included in these settings.
  • I received a Display Port link failure message and one of my panels isn't working! What do I do?
    If you see this error there are a couple of tricks to try to get picture back. First of all try power cycling the display that is blank. Secondly you can try Ctrl+Alt+Del to open the Windows Security screen, which should trigger a link reset and enable the blank screen. If this doesn't work then you'll have to save your work and log off and on again, or reboot. Recheck all your cables are securely connected to the card, any adapters, and to the display.
  • Some games look really stretched, or the field of view is unusable under Eyefinity, are there any tools to help change this?
    Widescreen Game Fixer works great for several titles to set the correct aspect ratio. Several titles are working with it, including Unreal Tournament III and Call of Duty: Modern Warfare 2. For some titles .ini tweaks can adjust the game to work better.
  • I love Eyefinity for gaming, but it's a pain for desktop windows - are there any tools to help with this?
    Yes, it's actually included in the full Catalyst driver package - Hydravision. Open CCC and select the Hydravision drop down from the top menu and select 'HydraGrid'. Select the checkbox to enable HydraGrid and hit apply. Now click the edit Hydra grid button, and select 'Preset Grid Layout' - 'Same As Eyefinity Displays'. Now you can pin applications to monitors and use keyboard shortcuts while clicking the window maximize button to manipulate it in different ways. You can always add more grid dividers to manage your workspace however you want.
  • What are the restriction of AMD Eyefinity with other technologies such as CrossfireX and AMD HD3D?
    You may experience stability issues running CrossfireX and Eyefinity. Currently CrossfireX and AMD HD3D are mutually exclusive, meaning currently a multi-display, multi-card Stereo3D configuration using AMD technology isn't available, but single card Eyefinity + AMD HD3D should be possible. AMD assure Rage3D it is being worked on.



Last edited by caveman-jim : Nov 2, 2011 at 11:28 AM.
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