Two 24" Monitors

All I wanted to do was add a second 24" Apple monitor to my MacPro!
Currently running 24" Apple Monitor via mini DisplayPort plus standard 19" monitor via DVI. Assumed I'd be able to buy an adaptor to convert the DVI to MDP for the 2nd monitor....and did find the Atlona AT-DP200 which is fine, but then thought I might go down the route of installing a second graphics card instead. So questions +and sub-questions+ are:-
1. *If I installed a second GT120* (obviously this gives me a second MDP O/P)
+can this create a problem in FCP as the processor doesn't recognise which of the identically named/numbered graphics cards to use?+
http://www.dvinfo.net/forum/final-cut-suite/145449-dual-graphics-cards-mac-pro-f inal-cut-pro.html
http://discussions.apple.com/thread.jspa?threadID=2180380&tstart=330
+is there a problem with controlling the brightness of the individual monitors again due to the processor not recognising which graphics card it's talking to via the USB port?+
2. Are there any graphics cards out there with TWO MDP O/Ps?
3. Am I looking at this all the wrong way and/or missing a much simpler solution?
Thanks for your help. I know all this has been pretty much covered before but I'm trying to get it all straight in my head, so I can make the best choice....!
Thanks
WH

Thanks Malcolm, think that's probably the best way to go and, as you say, I can upgrade in the future.
Last quick question.....the DVI o/p is a dual link & there's the option of single or dual link adaptors. Reading up on the difference, I'm thinking that the single link version would be fine? Running present 24" monitor at 1920x1200.
Thanks

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I have a new Pavilion dm4-301 d cl Entertainment PC. My OS is Windows 7. I am used to using two external monitors with a docking station. This new laptop does not have a docking station. What do I need to get to use two external monitors?
This question was solved.
View Solution.

Certainly not without a dock but even with, HP laptop docks pretty well limit you to one of the external monitor ports, even if there are two on the dock. We have used a device called an Atlona AT-HDPIX2 which is a usb to hdmi adapter. It provides a third monitor capability for a laptop....use the native external monitor port and the internal laptop display and then this device gives a third monitor which is full configurable from the Windows 7 display interface...clone, extend, etc. It allows full HD resolution and is responsive enough for even light gaming. HP makes no true docking station for your laptop.

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I am trying to connect two external monitors to mini DP(using a mini DP to VGA adapter) and the VGA out at once. Windows recognize both monitors as well. But it dowsn't let me use all three monitors at once(see the below image). In the dropdown, it lists all three monitors. Problem is there are two active displays I can select.

Mavec wrote:
I would like to add a third monitor.
The GPU(s) in your T400 (and most other laptop brands) will support two different displays concurrently. If you want to support more than two different displays concurrently, you will need another GPU external to the T400.
Generally, if you want to use two external displays on a T400 you will nee dto use a docking station.
I have read messages on various fora on this topic and know that there are a number of ways of doing this, but as I have never had a need to do this myself I can't tell you how to go about it.
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Bill
I don't work for Lenovo

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If you can connect each computer to the Internet at the same time without swapping cables, you have all the infrastructure in place for File Sharing.
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Internal display + DVI connector display
OR
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Upgraded to Yosemite and Windows 8.1 Pro in Bootcamp, can no longer drive retina display and two external monitors simultaneously?

Greetings
I just upgraded from Mountain Lion and Windows 7 Ultimate (Bootcamp) to Yosemite and Windows 8.1 Pro on a late 2012 MBP 13" Retina. Prior to the upgrades, I was able to drive the retina panel and two external monitors simultaneously when operating directly in Bootcamp. Now, I can only drive 2 of the 3 simultaneously though all three are recognized under Graphic Properties. I simply cannot find any option or profile under Graphics Properties or Options or Personalization to run all three screens.
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Great point, Loner T. It was late when I was working and I thought about this afterwards also.
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As an aside, thanks again for all of your help and terrific input to upgrade both the Mac and Windows operating systems. As I was going from Windows 7 Ultimate to Windows 8.1 Pro, one thing I did come across that made life much easier was to upgrade first to Windows 8 so I could keep my apps. The jump from 7 to 8.1 would otherwise migrate my personal files, but not programs and require a lot of time to reinstall all. This was completely avoided by going to Windows 8 first.
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Did you try to hook up both monitors to the Belkin adaptor? Trying will determine if your monitor has a bad input port. See if the Belkin adaptor is the problem. I have never used that specific adaptor, but I have always had luck with the Dr. Bott's DVI for ADC adaptor. Best of luck.
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Regards,
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May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft

Use two external monitors

Hi Guys!
I am using a MacBook Pro early (2011), i also use an external Monitor. (Works fine -> mini displayport dvi adapter) !
Yesterday, i tried to connect an older (VGA, i did not want to throw it away) monitor too, in order to use 2 Monitors + MacBookPro-Monitor!
Is there a way to use these two external monitors?
Thanx guys for your help, if this topic was discussed in the past, i apologize for this extra entry (May you can show its link)
Greetings from Austria
theFlow

Hi MarcusL,
Welcome to the HP Community, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I saw your post regarding using the two external monitors. You should be able to connect both. I have included two documents below depending on your operating system that will show you how to do it.
Connecting a Monitor, Projector or TV (Windows 7)
Connecting a Monitor, Projector or TV (Windows 8)
Thank you,
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP

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shelmers wrote:
W520 with Win 7 Pro
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-OR-
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I vote one of the larger. 17" displays, even two of them side-by-side, are simply too small.
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Only by using a USB video adapter like this one:
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Thank You -W

I have no Mini also, but one way...
http://eshop.macsales.com/item/NewerTech/VIDU2DVIA/
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Hi,
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Dan_Falk wrote:
Hi,
From what I can gather, the W520 does not have "hybrid Optimus" mode and hence can drive only two external monitors, even when connected to the mini-dock. Can anyone (from Lenovo?) tell me if this a hardware or software issue?Is an update to change this possible? Why did Lenovo make this disappointing choice?
http://www-307.ibm.com/pc/support/site.wss/MIGR-76767.html and http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-76617 don't match. The first document says 3 of the 5 display connectors on the dock can be used at the same time. In the second document, the W520 is nowhere to be found on the quad display sections.
Could we get clarification if this is working as designed on the W520 (only 2 connection active from the dock) or a bug and it should do three?
Lenovo?

Two 24" Monitors

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