Connecting a vga monitor to mini displayport with 2 adapters

Hi. I have a 21.5 inch iMac and I want to attach a second monitor. The monitor that I bought, the MultiSync LCD1560m, says it is mac compatible. it has two inputs; one DVI-D and one VGA. The monitor came with a vga cable, but not a DVI-D cable. I bought a dvi to mini displayport adapter, thinking the monitor would come with a DVI-D cable. I also had a VGA to DVI cable laying around, and attached that to the other adapter. The iMac won't detect the monitor. The chain from the iMac to the monitor is as follows: Mini DisplayPort > DVI > VGA. I don't want to shell out $40 for a new DVI-D cable. I've already rebooted multiple times plugging and unplugging the mnitor in before and after the iMac started up. I've also reset the PRAM. Does anybody have a solution that doesn't involve spending (much) money? (I'm broke. my monitor only cost $75). Thanks.

$40 for a DVI cable, where are you shopping Macy's?
http://www.cablewholesale.com/specs/dvi-d-cable/10v1-05301bk.htm
http://www.optimization-world.com/products/catid/3.html
I pretty sure even BestBuy has a DVI cable for under $20

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I cannot get both monitors to work when connecting my MacBook Pro to a VGA monitor using Mini DisplayPort to VGA Adapter

Need help with 2 monitor set up on MacBook Pro.

I am sorry for the confusion. The reason I asked about the speaker bar is that I can't find any information that shows built-in speakers on your monitor. I have looked everywhere, including in the HP specifications.
Here is the Back I/O panel (Input / Output) for your computer:
Figure 2: Back I/O panel
1 - Video Graphics Adapter port
2 - USB 2.0: 4
3 - RJ45 Network (LAN)
4 - Audio: Line in
5 - Audio: Front speaker/Line out
6 - Audio: Microphone in
The way that I have always connected speakers is to the port labeled # 5 (Audio: Front speaker/Line Out). This port allows sound to be sent to speakers. The VGA port is for video only. There is no audio capability. The only connection that sends Audio and Video is the HDMI (High-Definition Multimedia Interface) connectors.
This is the type of connector that I would expect to see coming from your speakers:
The male one at the bottom of the picture.
Please check the monitor carefully to assure that there are actually speakers built-in. I just don't want us to continue fighting a problem that doesn't exist. There may have been some incorrect information in the advertisement that you read.
Signature:
HP TouchPad - 1.2 GHz; 1 GB memory; 32 GB storage; WebOS/CyanogenMod 11(Kit Kat)
HP 10 Plus; Android-Kit Kat; 1.0 GHz Allwinner A31 ARM Cortex A7 Quad Core Processor ; 2GB RAM Memory Long: 2 GB DDR3L SDRAM (1600MHz); 16GB disable eMMC 16GB v4.51
HP Omen; i7-4710QH; 8 GB memory; 256 GB San Disk SSD; Win 8.1
HP Photosmart 7520 AIO
++++++++++++++++++
**Click the Thumbs Up+ to say 'Thanks' and the 'Accept as Solution' if I have solved your problem.**
Intelligence is God given; Wisdom is the sum of our mistakes!
I am not an HP employee.

Connect two external monitors to mini DP(using a mini DP to VGA adapter) and the VGA out at once

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.
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Bill
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Found the fix. Still don't know if it was Windows, iTunes, or Norton 360, but this worked immediately for me:
+++++++++++++++++
edgravel
Re: iTunes Store Won't Load, Won't Show Error Message
Aug 13, 2011 4:32 PM (in response to Daedalme)
I found a solution posted from Rodfromnework for PC users. It worked for me and easy to do.
Start --> Programs --> Accessories (Right Click on Command Prompt) --> Run as Administrator
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My VGA output using Mini DisplayPort to VGA doesn't work.

Since I upgraded to Mavericks, my VGA output using Mini DisplayPort to VGA doesn't work. When I was using Mountain Lion, as soon as you plugged in the Mini adaopter into the mini display port, the screen would shrink and format to where it would project via a RGB cable to a projector. No such luck since Mavericks! Also, I had a lot of trouble with the DVD player when I tried to play a DVD and project it via a projector. It all worked seamlessly with Mountain Lion. Can anyone help me?

I think if you go to System Preferences >> Displays and Option-click on the "Scaled" radio button, it will show you all of the resolutions that you would have had before under Mountain Lion. I just upgraded to Maverick and my resolution preferences (mirrored on a TV using the Mini DisplayPort to VGA adapter, using 1280x768) were completely reset (my display was no longer mirrored, and the resolution on my main iMac screen became 2560x1440). I found my answer here: https://discussions.apple.com/message/23599645#23599645. Hope that helps.

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Does anyone know how to connect a VGA monitor to a Macintosh LC III?
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Could the following documents possibly be of interest?
http://developer.apple.com/legacy/mac/library/documentation/Hardware/Developer_N otes/Macintosh_CPUs-68K_Desktop/Mac_LC_III.pdf
http://support.apple.com/kb/TA28939
http://support.apple.com/kb/TA21618
http://support.apple.com/kb/TA48263
(the latter three also mentioned under Related Articles)
Jan

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DVI connectors, on the card, are too close to fit two DVI to VGA adaptor cables.
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Apple tech help. How can we connect 2 VGA monitors?
eri

Eraldo - I had the same problem as you. Apple even sent me a new DVI-DVI extender cable but that one also had the small slotted pin receptacle that was too small for any of my DVI-VGA adapters. We finally found one that the extender DID fit, and that was the DVI connector that connects to my main display, a 20" Cinema. So the solution was to use the extender cable on my Cinema cable (on port 1) and use the other DVI-VGA or whatever connectors on port #2, straight into the Mac without the extension.

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Sorry I misread your post.
One option would be an eyeHome which would connect to the ethernet port of the Mac mini.
Another option is a VGA Splitter.

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Hi Stacey ,
Welcome to forum..
You need to get a video card with 2 VGA port .,, and install it on the computer to attach both monitor,,,
You can check local computer store for video card with 2 VGA port..
Click on the Kudos sign on left to say Thanks...

Connecting a vga monitor

Well I have never had a MAC before and now starting to wish I never bothered wasting my mony
The whole idea of the mac mini was perfect for my situation as I have a number of PC's
around the house with monitors.
None of my monitors will work with it at all I even went and bought a new thunderbolt to dvi adaptor
well I think thats what it is? its next to the right of the HDMI port BTW i have mac mini july 2011
Please Please will someone tell me either what I am doing wrong or if there is a solution to my problem
preferbly without shelling out any more mony as I am a student with limited funds. I do hope someone
here can reashore me of making the right choose in buying into apple after staying away from them
for so many years.
The only way I have used it is by connecting it to my TV with the HDMI which is compleatly unpraticle
Regards
J

If you've got a VGA only monitor, you need one of these:
http://store.apple.com/us/product/MB572Z/A
The Thunderbolt port is physically the same as Mini DisplayPort and is backwards compatible with it. The DVI adapter very likely is meant for a digital only connection, and thus will not adapt to VGA. Even if it was offering a digital or analog connection (as some DVI connectors do), you would have to buy a DVI to VGA adapter as well. Its cleaner and more efficient and trouble free to use the one step adapter.

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I need to connect a new mac mini to a vga monitor. Where can I get an adaptor? The mini comes with the HDMI to DVD-D adaptor. I am having trouble finding a DVI-D to VGA connector. Please help! I gather there is nothing yet for the Thunderbolt port.
Thank you in advance for your help,
Norm

Yes, the mini display port and thunderbolt port are one in the same.
I have my mini hooked up to one. The resolution isnt the best but I only use it for a media server.

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Juz a thought. Wonder if possible.
Since the 27-incher iMac does video input and output, instead of buying two 30" displays ($1799 each), might as well buy two of these 27" iMacs ($1999 each) and connect them via their mini DisplayPorts. Wonder if it's possible to use one 27-incher for computing and use the other as a second monitor, and switch around whenever it's needed. Kinda cool to have two 27-inchers and Macs on one table top.

There is no reason why that would not work. It would be the same as connecting a MacBook or a Mac mini or a Mac Pro (any Mac with a Mini DisplayPort) that same way to use the 27-inch iMac's big screen as a second display, which is the primary purpose of this feature. It should not matter if the primary Mac happens to be another 27-inch iMac.
And the second iMac would not be "just the display to extend my screen." It is fully operational, so it can be doing tasks in the background. It can be acting as a file or web server, or processing video, or downloading/uploading files. I believe there is a keystroke to toggle the display, and you can probably even control it using +Screen Sharing+ from the other iMac (as long as the two are connected over a network).
What would be really interesting to know, from someone who actually has two of these iMac sitting side-by-side, connected with a Mini DisplayPort cable, is if you can use either iMac as the extended Desktop screen for the other iMac, on-the-fly. So you'd be working on iMac A with iMac B being the second display. Then, you switch to the working on iMac B with iMac A being the second display. And do it with a few keystrokes and no rebooting. Now, that would be cool.

VGA out to Mini Displayport in: possible?

I'd like to use my 27" i5 iMac as an external display for my crusty work laptop (Dell Latitude D630).
The only video out on the laptop is a VGA port - no DVI, no DisplayPort.
Does such a creature as a VGA->DisplayPort adapter exist? Will I be able to drive the full resolution from my laptop? (it has a 128MB nVidia Quadro 135NVS video card)

Hi Peter,
such 'creatures' might exist (I am not aware of one...) but it would be a lot more than a simple adapter since it would have to take the analog video signals from VGA and convert them to digital video signals for the Mini DisplayPort.
So, most likely such thing would cost in the range of 300USD !
And even then, the quality of the converted signal might not be up to the quality you now have with the iMac display.
Regards
Stefan

Connecting RGB/VGA monitor to ADC connector on G4

I've got a G4 that has a Nvidia GeForce2 MX video card with an ADC and RGB/VGA connectors on it.
The RGB/VGA connection is completely broken. I have hooked up 5 monitors to it and they are all awful looking with color problems and major banding all over the screen.
the ADC port is fine. but I am giving this to a friend who only has an RGB screen, not an apple display.
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The adapter just takes the analog video signals from pins on the ADC plug and connects the to pins on the VGA socket. It doesn't do any electronic conversion. Since the board is only designed to run one display at a time, it is unlikely they use two digital to analog converter chips. They probably run the output from one converter to both connectors on the board. If the analog is bad on the VGA connector, it probably will be bad from the ADC. You may be lucky, but with the current prices of ADC to VGA adapters, I wanted to warn you that it may not work.

Two VGA monitors don't work with two different G4s, but both work with G3!

I recently acquired two used Power Mac G4s (one of them is a mirrored-door dual-processor that I got from school and was told should work, the other is a Gigabit Ethernet model, and should also work), from two completely different sources. They both turn on (I get a power-on light, I hear HDDs churning, and I get a power chime from one of them, and they react to the usual Mac stimuli, mouse and keyboard light up, reset button works, etc.) but I get *absolutely no video*. The monitor syncs for a second, like it gets a quick signal, then goes immediately back to the "CHECK SIGNAL CABLE" message.
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The software on the hard drives may be set for a video setting that won't work with your monitor. A few things to try (in order):
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2) Hold down Option when booting. Should show symbol of hard drive, plus a couple of arrows.
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Connecting a vga monitor to mini displayport with 2 adapters

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