Moderator jfk Posted January 5, 2016 Moderator Report Share Posted January 5, 2016 Here is a good instructional video from AMD, the differences between passive and active adaptors is explained (among other things). https://www.youtube.com/watch?v=Jf0X0lNFmgw&feature=youtu.be From what they say there, seems to be a good argument for only using active adaptors.Mixing passive and active adaptors results in two different signal paths. i.e.Passive adaptors pass through legacy DVI/HDMI/VGA native signalsgenerated directly from the graphics card (up to maximum of two). Even though these legacy signals are output on a DisplayPort connector, they are not DisplayPort signals, the graphics card detects the passive adaptor and adjusts to generate the legacy signal types. Active adaptors accept native DisplayPort signals from the graphics cardand then externally adapts them to DVI/HDMI, adding the signals not normally supplied by native DisplayPort.So to ensure no differences in timing, it would make sense to keep all the signal paths the same. Note 3360 WATCHPAX (one output) requires an active adaptor when needed, passive is not supported.3362 WATCHPAX 2 (two outputs) on the other hand supports passive adaptors on both ports. 0 Quote Link to comment Share on other sites More sharing options...
TomT Posted January 6, 2016 Report Share Posted January 6, 2016 cool, thanks for sharing jfk! 0 Quote Link to comment Share on other sites More sharing options...
NNinja Posted January 6, 2016 Report Share Posted January 6, 2016 I can confirm on what jfk is saying - do not mix the adaptors... Some years ago when we first started trying with multi display setups we experienced lots of problems... of course we didn't first RTFM 0 Quote Link to comment Share on other sites More sharing options...
Adela Kriland Posted January 26, 2016 Report Share Posted January 26, 2016 Hello, I have a question here, I have seen the video, just want to tell that the firepro cards behave different, one can have all the display port passive. JFk can you help me understand. I think I do, but this does not match with the video that is explaining ... Thanks Adela 0 Quote Link to comment Share on other sites More sharing options...
Moderator jfk Posted January 26, 2016 Author Moderator Report Share Posted January 26, 2016 Well, that video was published October 2012, so I imagine things could have changed since then. Sounds like a good question for the AMD engineers, wonder if they will be at ISE? 0 Quote Link to comment Share on other sites More sharing options...
Jonas Dannert Posted January 28, 2016 Report Share Posted January 28, 2016 I think one still needs ACTIVE DP/MDP-adapters for all concurrent DVI/HDMI/VGA-outputs (legacy) over two ie I would always use ACTIVE adapters. At least for all current graphics cards. Have not heard of any technical changes in this area. But of course I might be misinformed... /jonas 0 Quote Link to comment Share on other sites More sharing options...
Moderator jme Posted February 3, 2016 Moderator Report Share Posted February 3, 2016 Hi, As far as we tested the AMD FirePro W7100 (used in example the WATCHMAX) do not need active adapter to get four outputs. We still recommend for different reasons to use active adapters and also always use the same brand/model of adapters on the same card. Example if you want to use the hardware sync option by using the AMD FirePro S400 Sync Card you must have identical active adapters if you want to use DVI or HDMI signals. Best regards /jme 0 Quote Link to comment Share on other sites More sharing options...
Member Lloyd Stewart Posted December 30, 2016 Member Report Share Posted December 30, 2016 12/30/16 Just purchased the AMD WX7100, whose 4 display output connectors are all DP. My 3 projectors are all HDMI. So would this be a reasonable choice? http://www.newegg.com/Product/Product.aspx?Item=9SIA0ZX3747617&cm_re=active_display_port_to_HDMI-_-12-607-073-_-Product Thanks! Lloyd 0 Quote Link to comment Share on other sites More sharing options...
Moderator jfk Posted January 1, 2017 Author Moderator Report Share Posted January 1, 2017 12/30/16 Just purchased the AMD WX7100, whose 4 display output connectors are all DP. My 3 projectors are all HDMI. So would this be a reasonable choice? Accell B086B-003B-2 DisplayPort 1.1 to HDMI 1.4 Active Adapter Thanks! Lloyd Depends on the resolution of the projectors you wish to connect. The AMD WX7100 provides four DisplayPort 1.2 outputs. DisplayPort 1.2 is backward compatible to DisplayPort 1.1, which is all that adaptor supports. DisplayPort 1.1 eliminates 4k from your options, should handle 1920x1080@60p just fine. 0 Quote Link to comment Share on other sites More sharing options...
Thomas Leong Posted January 1, 2017 Report Share Posted January 1, 2017 ... The AMD WX7100 provides four DisplayPort 1.2 outputs.... Small correction Jim. According to AMD specs, the WX7100 has DP 1.4 outputs. The older W7100 is DP 1.2. 0 Quote Link to comment Share on other sites More sharing options...
Jonas Dannert Posted January 2, 2017 Report Share Posted January 2, 2017 Hi all, If 1920x1080@60p is your only requirement this adapter will work fine. However, DisplayPort 1.1 and this active adapter to HDMI 1.4, actually supports 4K but only up to 30 Hz. (4K Ultra HD (4096x2160 @ 24/30 Hz, 24 bits/pixel) The limitation to maximum 30p are due to the DisplayPort 1.1 and HDMI 1.4 specifications. For 60p HDMI output one needs both DisplayPort 1.2. AND HDMI 2.0 support in the adapter. The adapter mentioned, Accell B086B-003B-2, also seems replaced by the newer Accell B086B-006B-2. In order to cope with 4K/UHD@60Hz one would need this adapter instead: http://www.accellcables.com/collections/adapters/products/displayport-1-2-to-hdmi-2-0-adapter Accell B086B-011B - DisplayPort 1.2 to HDMI 2.0 Active Adapter my 2 cents, /jonas 0 Quote Link to comment Share on other sites More sharing options...
Member Lloyd Stewart Posted January 4, 2017 Member Report Share Posted January 4, 2017 Thanks guys! I bought what Jonas suggested. I sure appreciate the input! Lloyd 0 Quote Link to comment Share on other sites More sharing options...
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