DVI monitor connection better than/equal to/worse than analog connectivity?

Is there a real difference, or just .... ?
Thanks for your time.

Hi-
That's comparing apples to grapes. Digital and analog are completely different, and people will have opinions favoring either.
Opinions aside, digital (using DVI) is generally accepted as providing a more accurate, thus superior, image, as opposed to analog.
Though DVI and the accompanying digital signal don't require the necessary conversion required to create the analog signal, a quality graphics card will provide a quality analog signal for an analog monitor.
What a DVI connection does, is to pass directly to the monitor, the digital signal, with minimal processing. If the Monitor is digital/analog capable, it can also receive analog signal. If it is CRT, then it requires analog. Creating the analog signal from the computers digital signal requires conversion of the digital signal. With quality graphics cards and analog receivers, a monitors performance should not suffer. There is always some loss during conversion, and whether or not the differences are noticeable, depend on the equipment.
Whether or not the differences are objectionable, often times depends on the viewer.
Resources:
http://ecoustics-cnet.com.com/4520-3174_7-5136369-1.html
http://easymamecab.mameworld.net/html/monitor3.htm

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Portege R500: cannot connect the remote DVI monitor via Dynadock

Hello,
I just connected Dynadock (DVI) with my Portege R500. The notebook would be supported -- according to Toshiba -- but my experiment confirms that Dynadock is not able to access DVI port. This implies, that Dynadock is nothing more than USB HUB.
My setup: Vista 32b Business (CZE edition), latest fixes, Toshiba R500.
Software: latest dynadock software 2.3c.
Symptom: I cannot connect to the remote DVI monitor via the dynadock, only two external panels with 800x600 are available, but Vista does not allow me to choose them.
More info: Dynadock Software requires to run without Microsoft Defender, else it blocks service:DisplayLinkService; file:C:\Program Files\DisplayLink Core Software\DisplayLinkService.exe
If you disable MSDef, the message "error 2738" appears when you connect the dynadock and when Vista tries to install a missing drivers for you.
Yes, I do know the VBS issue, and the problem is not caused by VisualBasic -- VBS "Hello World" runs.
If you still believe, that Toshiba Dynadock is compatible with Toshiba R500, then press Fn-F5 and peek at your logs and you must find something like:
In English: igfxext.exe throws an exception 0xc000000d, offset 0x0000f9f8.
I welcome any comments, hints etc. If you are able to pass this bug report to a responsible engineer, do so please.

Hello again Leo
I still believe you are wrong. Toshiba Dynadock is not designed for Toshiba products only. It is universal product and can be used on every notebook. To be honest I believe it is better to use it with new, more powerful, notebooks.
When you sat your notebook model is listed as compatible I believe you. Why not? Toshiba can list all newer notebooks. No problem at all. To be honest I am also interested to buy Dynadock but after reading your posting I wanted to see how it works exactly.
I have contacted my friend because he works in one big electronic store and I was lucky because he had Portege M500 too.
He was very nice and offered me to test Portege M500 SSD model with Dynadck PA3542EY1PRP. I hope you have the same model. It is DVI model. So I have done follow:
- Portege was preinstalled with clean Vista OS (factory settings started for the first time)
- I have installed latest Dynadock Utilitiy for Vista 2.3c
- Installing this software you must pay attention about installations steps and the installations procedure should not be interrupted
at one step there is window Installation Complete but it is not complete and must be continued with
Display Link Core Software installation
Video Dock installation
at this point the Dynadock must be connected to favorite USB port NOT FROM THE BEGINNING
- At the end I have restarted notebook
The installation was finished properly and I have connected 20 Toshiba Tekbright LCD display (DVI cable). The native resolution is 1680x1050. in Display properties there are shown three displays. Display number 3 belongs to display connected to the Dynadock.
Resolution 1680x1050 was there and display shows perfect picture. I have tested it as extended desktop and it works without problems. I didnt test it playing some movies.
I have also tested it with FN+F5 key combination. It does not work as it should be but there is definitely no error message. I know that FN+F5 key combination is not designed for external graphic card and I know that it can not work well.
At the end I can sat that Dynadock works well with Portege M500 SSD and there is definitely no error message. It works with Vista very well. I have tested it with screen saver and with few restarts. Nothing changes. Everything was OK.
So after this test I can say that you have done some mistake. If you want to use it again I recommend you to install Vista again using recovery image. After doing this you will have clean preinstalled OS. Install software but please follow the menu on the screen and be sure all three components are installed properly. If I am remembering well when you see message about USB audio device installation you must connect Dynadock and continue installation.
PLEASE FOE DYNADOCK USE ALWAYS THE SAME USB PORT!!!
Sorry for this long story but I can say for sure IT WORKS PROPERLY!!!
Have a nice day!

What adaptor do I need to connect from mini display port to a dvi monitor

I want to connect a 2nd monitor to my mac mini via the mini display port, will the Apple adator do this ok or will I need an active adaptor

I had trouble with different Mini DisplayPort to DVI adapters, including a couple of Apple branded ones.
When I mentioned the problem to the Apple rep. at Fry's. He walked straight over to the rack, handed me a > Kanex Mini DisplayPort to DVI-D Adaper grined and said, I've never had one of these baby's come back.
After that my 2010 Mac Mini has been very stable running Dual 21.5" Samsung DVI monitors. One in on the Apple Supplied HDMI to DVI adapter, the other now on the Kanex Adapter has been rock solid for over a year.

My MBP Retina doesn't allow the use of two Thunderbolt to DVI adapters. It only works with one TB - VGA adapter and one TB - DVI adapter. However now the color on the VGA connected monitor is slightly different.

The monitors are Viewsonic VA2406m-LED. The Display preferences show all three monitors but one monitor always says "No Signal" if they are both connected TB -> DVI.
The Color on the VGA connected one is slighly off. It seems like I should be able to connect two DVI monitors not sure why this is stopped. Does it have something to do with the Graphics card?

The problem was with the newEgg adapter. I just went to the Apple Store and bought an Apple adapter and the monitor now displays correctly.
For future reference, in case anyone experiences this problem:
the newEgg adapter is part number 9SIA1PU0P88920, described as a Thunderbolt Mini Displayporrt Display Port DP to DVI Adapter for APPLE Macbook Pro Air and the full description says it works for macbook pro, etc.
when this adapter is used, the macbook pro recognizes the monitor, but the monitor displays nothing.
When the apple adapter (MB507Z/B Mini Display Port to DVI Adapater) is used, the monitor displays correctly.
Of course, the individual newEgg part might simply be defective, but I doubt it. moral -- spend the extra $$ and buy the Apple adapter.

MacBook Air mid-2013 OSX 10.9.1 cannot connect to DVI Monitor

Does anyone else have this problem? I've seen similar issues raised, but so far can't find a solution to my particular issue:
MacBook Air Mid 2013 (ordered Jan 2014)
- 1.3GHz Intel Core i5
- 8GB 1600MHz DDR3 RAM
- OSX 10.9.1 Mavericks.
When I connect my MacBook Air to any monitor (well, I've tried three monitors: Benq, NEC and Samsung) the monitor will not detect an attached computer. The MacBook also does not think it's connected to an external display.
If I connect via VGA cable, it works fine most of the time*, so the display port seems to work only for VGA and not DVI.
I am using mini display port adapters (DVI and VGA) purchased from the Apple Store.
The adapter for the mini display to DVI works fine, since I can get my 2009 MacBook unibody to connect to an external display via DVI without issue. So it's not the adapter, or the DVI cable.
I have tried resetting the System Management Controller for my MacBook air but it does not work. No matter how many times I reset the computer (Hard reset, Soft power down, SMC reset) I cannot get it to connect via DVI.
Has anyone experienced this issue, or seen a resolution for it?
*The only other symptom I get periodically, is that after being disconnected from a VGA monitor, the computer will periodically (about 2/5 times) not connect to the VGA monitor either without a reboot. However it will connect most of the time, and ALL of the time after a reboot.
Thank you

Thanks themachead: I have tried the adaptors on different macs, as I indicated in my post. The adaptor works fine with a different mac
Yes, I have also tried starting up with the monitor connected, and disconnected.
I just got off the phone with Apple Care. They couldn't solve my issue through normal means, but during one attempt, we closed my MacBook Air while it was connected to the external display, with my Magic Mouse and Apple Keyboard connected via Bluetooth. The external monitor did not come on. However when I opened my Macbook Air's screen, we saw that my Mac had crashed and prompted me to reboot. When it did, the external monitor worked. I have been able to disconnect and reconnect the monitor and it seems to be working now. I will see what happens after a few attempts.

Can I use the Apple VGA to DVI adapter to connect a PC to a DVI monitor?

Hi
Any idea of the Apple VGA to DVI adapter would work to connect a PC's VGA output to a DVI monitor?
Is it a simple pass through? Or are there drivers needed.

That adapter is for connecting a VGA display to a computer's DVI-I port. A DVI-I port has both digital and analog video pins. The adapter passes just the analog video to a VGA connector. It will not work in the reverse direction because a VGA computer does not provide digital video.
There are VGA to DVI converters that will connect a DVI display to a VGA computer.
<http://www.monoprice.com/Product?c_id=101&cp_id=10114&cs_id=1011401&p_id=8214&se q=1&format=2>
<http://www.aten.com/products/Professional-Audio/Video/Converters/VGA-to-DVI-Conv erter~VC160A.html>
No drivers needed.

If I host with Business Catalyst, will search engines fine me any "better" or Worse than go daddy?

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I am using the apple mini-dvi to dvi adapter with a dvi-hdmi cable to connect to the visio 42" hdtv and the same apple mini-dvi adapter with a regular dvi cable to connect to the Sceptre 22" monitor. The TV is in the next room, so it is not really practical to use as a second monitor, besides sometimes my wife wants to watch TV while I am working.
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HT4279 3 DVI Monitors on HD5770 Card

I want to run 3 DVI monitors from my HD 5770 card. Can I ues the standard Apple Mini DVI to DVI Adapter or does it need to be the £70 Mini DisplayPort to Dual-Link DVI Adapter !

You need two active dvi adapters to drive three monitors on the 5x70 cards.
Read these:
Mac Pro (Mid 2010), Mac Pro (Early 2009): Issues with three displays and multiple DVI, HDMI connections
Mac Pro (Early 2009), Mac Pro (Mid 2010): Supported display configurations
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Here's a good explaination of what's going in here and why you need two active adapters on these cards:
Active vs. Passive Displayport adapters *the truth*

Mixing VGA and DVI monitors with 5770

Hi everyone,
I've seen the Apple articles and the forum posts about this, but before I need to check my configuration will work before it has to be used on a show at work (the MP is running screens in a venue). I've seen lots of scenarios with people using all DVI monitors or all VGA, but can't find any examples where they are mixed.
Here is my proposed setup:
DVI output - 800 x 600 - First device (DVI input only)
Mini Display Port 1 - also 800 x 600 - Second device (DVI/VGA input but strongly prefer to use DVI) via Mini Display Port -> DVI adapter (passive?)
Mini Display Port 2 - 1376 x 7?? - Monitor running the UI (VGA input) via Mini Display Port -> VGA adapter (active?)
My worry is that there is only one active adapter in the system?
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So Backup plan 1:
DVI output - 800 x 600 - DVI in of first device
Mini Display Port 1 - 1376 x 7?? - Monitor running the UI (VGA input) via Mini Display Port -> VGA adapter (active?)
MDP 2 not used.
Backup plan 2:
DVI output - 800 x 600 - DVI in of first device
Mini Display Port 1 - also 800 x 600 - Second device, VGA input via Mini Display Port -> VGA adapter
Mini Display Port 2 - 1376 x 7?? - Monitor running the UI (VGA input) via Mini Display Port -> VGA adapter
Phew, sorry for the essay everyone. Been a long day of trying to research all of this...
Thanks in advance.

Obviously backup plan 1 is no problem with only two monitors connected.
You have a relatively easy set of conditions. Two of your monitors are single link DVI (resolutions less than 1920 x 1200). One is vga. So a mini-displayport (mDP) to VGA counts as one active adapter and all you need is a a mini-displayport to single linke DVI active adapter for one of the others.
If you look at AMD Eyefinity Validated Dongles chart you would find that a Accell B087B-006B qualifies as an mini-displayport to single link DVI active adapter.
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DVI --> 800 x 600 DVI display #1
mDP --> B087B-006B --> 800 x 600 DVI display #2
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Is this even possible?
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Do I have to connect the optical audio line to make nice?

Hi-
The DVI splitter can only supply one resolution.
Unless both monitors are of the same resolution, problems will result.
Using both ports of the graphics card will give better results.
If one port is ADC, use the ADC to DVI adapter (Belkin or Molex) to connect one DVI monitor,
Use the DVI port to connect DVI to HDMI.
Do I have to connect the optical audio line to make nice?
No.
You only need that to get audio.

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Mini Displayport to DVI Adapter not sending signal to DVI Monitor

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Thanks,

Hello fuzzymelton,
The article linked below details a number of useful troubleshooting steps that may help get the additional monitor to function.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Cheers,
Allen

DVI monitor connection better than/equal to/worse than analog connectivity?

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