DisplayPort to DVI problems - motion is choppy even when moving windows.

I just got my Mac Pro 8 core (2009). I have two monitors connected to it. Anything that happens on the second monitor(connected to the DisplayPort via a DisplayPort to DVI adapter) is choppy. I can't even move or reposition windows smoothly. Additionally, Final Cut Pro will not let me use the second monitor to play my video out as I could with my previous mac pro (2008) which had two DVD ports.
What's up with this DisplayPort causing these issues?

Oh, I'm sorry, I didn't realize both cards Apple sold as stock came with the mini display port.
So really then your having just problems on the monitor that's attached to the mini display port? That's become fairly typical. Well, I'd still try the update, especially if you only used Software Update which can be lacking at times.
But there is another option I've read here about that has fixed some peoples problems with that adapter. It's yet another adapter and it's this one: http://store.apple.com/us/product/MB571Z/A?fnode=MTY1NDA5OQ&mco=MjkyNjI0Mg
Highly priced and not highly rated I know, but these were recommended after people first started having problems with these crummy new adapters.
I know myself, I bought two of the $20 dollar priced ones and neither worked well. The adapter only worked for my 20" ACD. But I have the 285 now so no more worries there.
The card you have is a little underpowered anyway, maybe this card would be more to your liking.
http://eshop.macsales.com/item/ATI%20Technologies/100435928/

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Video playing back choppy even in Source window

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I have seen before when the array was being rebuilt. It will state this in the monitoring software. But the software is reporting all is well.
So I backed up everything and deleted the RAID array. I recreated the RAID array and was still getting the same problem. To test every time, I have a 900MB file that only takes about 20 seconds to transfer between two single SATA hard drives in the same computer. When I tried copying this to the RAID array it said it was going to take about 30-40 minutes!
I removed my boot drive and put in a spare that we had, formatted it and installed Windows XP, hoping that the problem was in the operating system. After installing the mobo drivers I tried copying the 900MB file and again it was going to take 30-40 minutes.
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Mini DisplayPort to DVI Adapter not being recognized...

I wanted to run two monitors off my Mac Pro - a Dell S2409W and an LG Flatron L1920P. Forget for a moment the ugliness of this set up, if you will. My problem is whichever monitor I connect to the mini displayport to DVI adapter isn't recognized. When I go to the Display preferences and click 'Detect Displays', I'll only get whichever display is connect to the DVI out.
All the cabling I have here is DVI-D. And the adapter is brand spanking new. I've tried the different combinations of booting the machine, then turning on the displays, turning on the displays then booting the machine, etc.
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Hi,
Do you see the adapter you have listed here?
http://store.apple.com/us/browse/home/shopmac/macaccessories/displays?mco=OTY2ODUwNQ
Supposedly the one that works the best is the $99 one. Imho, that mini-display port has been a problem from the start. Some companies are offering products as work arounds, such as Griffin. The ones I've seen are pretty pricy though.
Oh, there is one thing, pretty remote maybe, but I found that the plug that goes into the card has to be nicely shoved in there. I've put it in thinking it was all the way in and it wasn't.

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The old G4 mini has trouble with monitors that have something called a non-coherent TMDS (DVI) receiver. The solution is to use SwitchRes X and build a custom resolution using the CVT-RB setting under the "Use simplified settings" option in the custom timing set up window. This causes the pixel clock to lower to a value where the coherency/non-coherency matter is not an issue. Here are more specific instructions for using SwitchRes X once you have downloaded and installed it. By the way, download and install the lighter version of the program instead of the full version. The lighter version is called SwitchRes X Control Panel.
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Hi,
I have a unibody MBP 15', running on 10.5.8. I use 'Mini DisplayPort to DVI Adapter' (http://store.apple.com/us/product/MB570Z/A?fnode=MTY1NDA5OQ&mco=Nzk2MDk5OQ) to connect to my external HP LP3065 30' monitor. I get max resolution of 1280 x 800 for external monitor which supports resolution of 2560 by 1600.
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Rohit

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http://store.apple.com/us/product/MB571Z/A

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I have a new mid-2009 Macbook Pro hooked up to a 20" Samsung 2033sw LCD with a native 1600x900 resolution using a mini Displayport to DVI adapter that I bought off of EBay. No matter what I've tried I can't get anything to display on the external Samsung LCD higher than 1024x768. I tried switching between GPU's and that made no difference. Any ideas.?

Michael, thanks for the reply;
When you open System Preferences/Displays does a second preference panel open up OK on the Samsung ?
Yes, but I can't see it unless I select 'gather displays'. Then it appears on the MBP LCD, and showing the correct resolution - 1600x900.
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None that I can find. Only display and color tabs.
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Using a mini displayport to dvi adapter results in a jumpy mouse and a delay on screen when typing text. I've searched for days, but couldn't find the answer. I am using an iMac 27" i7 8GB and as additional monitor a Philips 220WS.
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I havent seen the text issue yet but I dont think I tried typing because I use the cpu with two screens for editing and I got frustrated and unplugged the second monitor. Ill try it and get back to you. Thanks for chiming in we need to get a solution to this as its one of the main features for me.
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Mini-Displayport to DVI adapter not working, but Mini-Displayport to VGA and Thunderbolt work fine.
This is a brand new MacBook Pro (15-inch, mid-2012) just received. I suspect that this is a hardware problem as:
The mini-displayport to DVI adapter and the external monitor that I am utilizing connect and operate just fine using my older MacBook Pro (mid-2010) with the same OS.
The new MacBook Pro powers the external monitor with a mini-displayport to VGA adapater without issue.
The new MacBook Pro powers an Apple Thunderbolt display without issue.
Both MacBook Pro's are running OSX Lion 10.7.4.
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All adapters and components (mini-displayport adapters) are Apple retail adapter.
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Any other suggestions before I take it to the Genius Bar?

I turns out that the logic board of my MacBook Pro was faulty (despite being brand new).
I took it to the Apple Store, presented the problem, and one of the Tech's came to the same conclusion that I had -- hardware failure. Phone support was no help in the matter (and even told me that what I was trying to do wasn't a supported option, which is rediculous). However, the Genius Bar did take care of the problem, and my MacBook Pro was back to me with a replaced logic board within a few days.
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I turns out that the logic board of my MacBook Pro was faulty (despite being brand new).
I took it to the Apple Store, presented the problem, and one of the Tech's came to the same conclusion that I had -- hardware failure. Phone support was no help in the matter (and even told me that what I was trying to do wasn't a supported option, which is rediculous). However, the Genius Bar did take care of the problem, and my MacBook Pro was back to me with a replaced logic board within a few days.
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Using my computer and my 20" monitor, the Genius tried making it work with my bower block and with another one in the store. Nothing worked.
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Big PITA (Pain in the A..)
Poor diagnosis the first time gave me 10 days of frustration.
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I turns out that the logic board of my MacBook Pro was faulty (despite being brand new).
I took it to the Apple Store, presented the problem, and one of the Tech's came to the same conclusion that I had -- hardware failure. Phone support was no help in the matter (and even told me that what I was trying to do wasn't a supported option, which is rediculous). However, the Genius Bar did take care of the problem, and my MacBook Pro was back to me with a replaced logic board within a few days.
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Hey guys,
In my office I'm trying to set up a mac with two displays, Samsung screensync sa450s, using a Startech MDP2DVIW mini displayport to dvi, and the DVI port found on the ATI Radeon HD 5770.
However, whichever monitor is plugged in through the mini displayport never shows video, and instead will just flicker sometimes, no matter which monitor I use, or which of the mini displayports i use. The system profiler recognizes both monitors, and has all of the specs on both monitors, but only the monitor connected directly to the DVI displays anything, even if it is the secondary monitor.
The StarTech does still work with the macpro that used to be in this spot, and the only salient distinction I can find is that the old computer has Mountain Lion, while the new one is still running Snow Leopard. Is this a case where we should just update the OS? or is there another fix?
I've also read online that many people have been not fully plugging in these mini displayports, so I'm worried that I'm doing that, but then I'd figure it wouldn't have worked when I plugged it into the old computer unless my predecessor had made some hardware adjustments.
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A frequent solution to problems like the one you describe involves pushing in the Mini DisplayPort cable-end.
It should be inserted until essentially ALL of the metal end disappears inside the jack on the 5770 board.
Is this display wider than 1920 wide?
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DisplayPort to DVI problems - motion is choppy even when moving windows.

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