Problem with Mini DisplyPort to VGA adapter

I recently got a new Mac Pro quad core and hooked it up to my existing Cinema Display (primary) and Sony VGA monitor (secondary). The cinema display is connected to the DVI port and the Sony is connected to the mini displayport with a mini displayport to VGA adapter.
It all works great until the computer goes to sleep. When I wake it from sleep the cinema display is fine, but the second monitor won't come back up unless I unplug it from the mini displayport and reconnect.
Any ideas how I can fix this?

You are using an ACTIVE (powered conversion from Mini DisplayPort, and are having trouble with it.
Your card generates VGA directly, at the proper Voltage levels, and it may be more reliable that the method you are using now.
The VGA signals are on the bar at the end and one pin from the top row of the grid. I suggest you buy a DVI-to-VGA adapter and use it instead of the converter you are using now.

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Problem with Mini DVI to DVI adapter

Hello friends Im trying to make my Mini DVI to DVI Adapter working with a projector but it appears that it's not working. It's seems a drivers issue because I've tried with one to Mini DVI to VGA adapter with the same computer and projector and it works fine. Is there any drivers to this device?? Thank you in advance

You have the wrong adapter. The one you have is single-link DVI, which does not support 30" displays. You need the Mini DisplayPort to Dual-Link DVI Adapter:
http://store.apple.com/us/product/MB571Z/A

Resolution problem with Mini DisplayPort to DVI Adapter

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.
This monitor used to work fine with old MBPs, but not with my unibody MBP. What could be the problem? Adapter or MBP?
I am missing high resolutions
Thanks in advance!
Rohit

You have the wrong adapter. The one you have is single-link DVI, which does not support 30" displays. You need the Mini DisplayPort to Dual-Link DVI Adapter:
http://store.apple.com/us/product/MB571Z/A

24inch iMac with Mini-Dvi to VGA adapter, is not working correctly!

OK, I PLUGGED MY ADAPTER TO THE VGA CABLE FROM THE OPTOMA PROJECTOR AND THEN CONNECTED THE ADAPTER TO THE 24IN IMAC. I USED THE REMOTE FOR THE PROJECTOR AND SELECTED VGA 19(WHAT PORT COMPUTER IS CONNECTED TO) AND ALL I SEE IS MY WALLPAPER, NOT ONLY THAT, IT IS PURPLE! I REALLY NEED HELP? I HAVE TOYED WITH IT A LITTLE BIT AND GOT IT TO WHERE IT SHOWS MY ENTIRE SCREEN, BUT IT IS STILL PURPLE! CAN ANYBODY HELP? I COULD USE IT.
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Hi Josh,
To start, it is considered extremely impolite to type in all capital letters as you have done. Please use all lower case, or preferably properly capitalised text, in future.
With regards to the problem you're having.. the reason you only see the desktop background is due to screen spanning. If you want the external display to display the same thing as the internal display, go to the displays system preferences pane, and check the box that says "Mirroring"
The color problem is probably due to a loose connection somewhere, either between the iMac and its adaptor, the adaptor and the cable to the projector, or between the projector and the cable plugging into it. If you're still having problems, try different adaptor cables, or try plugging it into a different monitor to try to work out which one is causing a problem.
Good luck

Using Mini DisplayPort to VGA adapter -- any settings on the Macbook Air I need to change?

Going into a meeting with my Macbook Air with Mini DisplayPort to VGA adapter, which will be connnected to a video projector on site. Never tried this setup before. Will this just work or do I need to adjust any video settings on my Macbook Air?

Hi glraczon.support,
It sounds like the external display you are using (projector) operates at a smaller resolution than your MacBook Pro. You may want to configure the display preferences in System Preferences for the external projector.
Here is an article that may help you with that process:
OS X Mountain Lion: About the Display pane of System Preferences
http://support.apple.com/kb/HT5369
Thanks,
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Apple Mini-DVI to VGA Adapter Problems in Boot Camp / Windows

I currently run Windows XP SP2 on my MacBook and recently purchased the Mini-DVI to VGA adapter so I could hook up the MacBook to an external projector, monitor, or TV to display what's on my Windows screen on the external device. However, when I connect it to any external device, it just goes nuts and sporadically continues to make the hardware connect and hardware disconnect sounds and doesn't allow for external output of the screen. Any suggestions...? Thanks!
Marc

I think I solved this problem.
It was in issue for me. My second monitor would only display the Windows XP screen when it was loading, then it would black out. I couldn't even move my mouse arrow to the other side. Then I fixed it, here's how (running Windows XP SP3):
1. Start > Control Panel > Appearance and Themes
2. Display
3. Go to tab "settings"
4. Double click the blue image with the "2" inside it. This is the second monitor, adjacent to your first, or primary, monitor. The blue box may be a desaturated, greyish blue, meaning that the monitor is disabled. Click it and it a box will pop up asking if you want to enable the monitor. Click OK, and then like magic, your monitor is resurected in it's Windows Glory! From there, adjust the resolution, and it should work perfectly.
This isn't a Boot Camp compatability issue, it's just a problem with the lack of familiarity that users of OS X have with using XP.
Have a nice day!
Message was edited by: BlakeTron
Message was edited by: BlakeTron

Mini DVI to VGA Adapter Video Problem

This year at Randolph-Macon College we replaced the Math lab Emac computers with IMac G5 Intel machines. The laboratory has an NEC model MT1050 projector with a manufacturer’s date of August 2002. We can not seem to get rid of ever present scan lines. We can slow them down and speed them up by adjusting resolution and refresh rates, but nothing will remove them. We are connecting the IMac to the projector via the Apple Mini-DVI to VGA Adapter. It is specifically designed for use with the iMac (Intel Core Duo), and the adapter connects to the Mini-DVI port of the computer and the VGA end of the adapter to an external VGA monitor or projector.
Troubleshooting the problem we have swapped IMac Intel computers with no luck, but we still have to use the Apple Mini-DVI to VGA Adapter. When we hook the projector to a Intel Mac Book Pro, we have to use a different adapter, but then it works perfectly. In fact, everything we try using other adapters works fine, it’s just when we use the Apple Mini-DVI to VGA Adapter that we experience the video problem.
Has anyone experienced this problem and if so, have you been able to remedy it?
iMac (Intel Core Duo) Mac OS X (10.4.8)

I don't have much to suggest, except to ask if you can try with a different mini-DVI to VGA adapter. (i.e. do you have more than one on hand to make sure yours isn't just defective?) Make sure it is firmly seated into the iMac.
I use the same adapter to provide an extended desktop on an old CRT monitor and the display is great.

Mini DisplayPort to VGA Adapter problems

I connected my Apple Pro to my HD TV to watch streamed movies on my computer using the TV as a monitor. I was advised to purchase a Mini DisplayPort to VGA Adapter and all the connections fit. The first time I connected it was no problem. I watched the movie and the audio was fine. Then the 2nd time I connected I had no screen. It was a blue wavy screen on the TV, even though the computer screen was showing the show. I believe it may have been showing me some sort of screensaver application from what i've read on the forums but I have no idea why or how. Then the next day I tried again. The screen was fine but the audio quality was terrible. It was like listening through a cheap radio. Why am I having so many problems and the quality is not consistent. Are there settings I should change when I do this?

I have some good news.
Regarding the broken lines on the output of the Mini DisplayPort, it seems as though it "fixed" itself. My theory is, I recently installed Windows 7. Updated all the drivers on the windows side and got it to project properly with the new Intel 4000 graphic cards. Once that happened, it kind of "popped the cherry" on the port and now both Mac and Windows output properly through the Mini DisplayPort.
I've tested it with numerous adapters and once it outputed properly for the first time ever, all subsequent times work.
I now have tested in on LCD and DLP projectors, Philips monitors, Skyworth TVs, Sanyo TVs.
It's working with the Mini DisplayPort - VGA adapter.
It's also working with the Mini DisplayPort - DVI adapter as well.
Before I "popped the cherry" on the output port, nothing else worked. 1440x900 didn't work, neither did mirroring the displays. It just had to work once with whatever OS and after that it outputs fine all the time.
If you ahve the same problem as above, i'd recommend dual booting another OS, load the proper graphix drivers, get it to output properly once and hopefully it'll fix the problem like it did for my unit.
Thanks for everyone's input with the whole ordeal!
PS. after the initial output, it didn't matter which adapter I used. I kept the generic since it's cheaper, returned the apple one cuz it's exactly the same, and now bought a generic MiniDP - DVI for my at home workstation.
PPS. One final picture of it working....

HT3382 With a MacbookAir (mid-2012) using a mini DisplayPort to VGA adapter plugged into the Thunderbolt port, can you configure the external monitor to FULLY display in portrait mode yet keep the built-in display in landscape mode?

With an 11"-inch Macbook Air (mid-2012) using a mini DisplayPort-to-VGA adapter plugged into the Thunderbolt port:
Can you configure an extended desktop with an external monitor (20") displaying full portrait mode (1200 x 1600 resolution) and keep the built-in display in landscape?
I'd like to see something like
External monitor / Built-in display

Yes, I can't see why not.
Just give it a try and report back if you have a problem.

Cam I use Asus mini display to VGA adapter on mac with thunderbolt port

I don't have a apple mini display to vga adapter, but my friend have a Asus branded with similar design like apple, I have a presentation two days more, so I need answer quick!!!
My mac: 2012 mid 15 inch

I mean the Mini Display to VGA as in this website:
http://www.asus.com/support/FAQ/1002131/

I have a MBPro mid 2013 with 1 Thunderbolt port. Just bought a Mac monitor and want to daisy chain a PC monitor to it. Use a Mini DVI to VGA adapter from MBP to PC monitor. How do I daisy chain the 2 monitors?

I have a MBPro mid 2013 with 1 Thunderbolt port. Just bought a Mac monitor and want to daisy chain a PC monitor to it. Use a Mini DVI to VGA adapter from MBP to PC monitor. How do I daisy chain the 2 monitors?

Hall Palm Desert,
if your Mac monitor has Thunderbolt ports, and the PC monitor is on the end of the daisy chain, then you might be able to do it by connecting your PC monitor’s VGA cable to a Mini DisplayPort-to-VGA adapter (e.g. Apple, NewerTech), connecting that cable’s Mini DisplayPort end to one of the Mac monitor’s Thunderbolt ports, and then connecting a Thunderbolt cable between the other port on the Mac monitor and your MacBook Pro.

Getting a Mini DisplayPort to VGA Adapter & Monitor to Work with an Xserve

First let me say that I'm very new to Xserve's and OS X Server and any help is greatly appreciated.
I have an Xserve with a connected Mini DisplayPort to VGA Adapter and a confirmed working VGA monitor. There is also a keyboard and mouse plugged into the front USB port of the Xserve. The internal SSD has been formatted clean.
I've been trying to boot up from the optical drive on the Xserve using the 10.6 DVD. I use the front panel/system identifier button to boot up and I make sure enclosure lock is unlocked. Each time I try to boot up, the monitor stays off and the DVD is spit out.
I eventually got the DVD to stay in, and the screen showed the grey screen with black apple and the spinning black circle on the bottom. However, after a few minutes the screen turned orange in color. Using Screen Sharing, it looked fine. I tried a second VGA monitor, but that still didn't do it.
So with the DVD still in, I stay connected via Screen Sharing and begin the installation process remotely, thinking Snow Leopard will recognize the monitor eventually. Well, 10.6 is now fully installed, but still no working monitor.
I then decided to try the Mini DisplayPort to VGA Firmware Update. I download and run the installer, but it tells me, "The Updater could not find a Mini DisplayPort to VGA Adapter to update."
How can I possibly get this monitor working?
Thanks in advance.
Message was edited by: nappy

Just ran in to this myself -- Nehalem Xserve running 10.6.2 Server with an MiniDisplayPort to VGA adapter connected to an Avocent Switchview 1000 KVM. Took the server offline to install RAM and after rebooting, no video. Oddly enough, the KVM's LEDs showed a display connected but Apple System Profiler showed no adapters connected to the video card. Nothing seemingly worked -- rebooting, shutdown/restart, and/or hot-plugging the adapter made no difference. I also tried a second MiniDisplayPort adapter to no avail.
Note that the MiniDisplayPort to VGA Firmware update had already been applied to BOTH adapters prior to this issue appearing.
What restored video output on our system: reboot from the Snow Leopard Server install media, video reappears over the adapter, and after that I can reboot from the SSD boot drive running 10.6.2 Server with video output working over the MiniDisplayPort to VGA adapter.

Can the Mini DisplayPort to VGA Adapter for a 2011 Mac Mini be used with Windows 7?

This question concerns the Mini DisplayPort to VGA Adapter described at the below link:
http://store.apple.com/us/product/MB572Z/A
When running Windows 7 via Boot Camp on a 2011 Mac Mini, can the above adapter be used with a VGA monitor?

Thank you for the confirmation, Mr. Peck.

Will a Mini-Displayport to VGA adapter work with new macbook pro 2011

I was thinking of getting a mini-displayport to vga adapter for my external monitor I wanted to hook up but I wasnt quite sure whether it would work as my macbook pro has the new thunderbolt port, I was confused if the new port would only work with the thunderbolt displays. Could anyone help me as I'm not too sure what will work.

I tried the Apple miniDisplayport to VGA in a Thunderbolt MBP and iMac and they both worked. Same for the Apple miniDIsplayport to DVI.

Does the "Mini DisplayPort to VGA Adapter" work with all Samsung tv models?

Does the "Mini DisplayPort to VGA Adapter" work with all Samsung tv models?

It's a VGA adapter. Nothing special about that. If your Samsung monitor supports VGA then it will work.
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