VGA adapter trouble

Hello, folks. I have a MacBook Pro with OS X 10.9.2. Last year, I used a VGA adapter without problems to connect the notebook to a data show. However, in the past few weeks I have twice tried to connect it to other data shows, with no luck. I select the 'displays' option in the system preferences utility, and then I press Option and tell it to detect displays, to no avail.
Can anyone shed some light in the question?

I'm assuming you're using a MiniDisplayPort to VGA adapter. Have you tried another adapter? I've had a few MDP adapters of various sorts fail on me pretty quickly.

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DVI to VGA Adapter Trouble

I recently was able to figure out (I am not tech savvy) how to transfer video and audio from my Macbook to my TV with the DVI to VGA adapter. How to connect it is as far as my knowledge goes on the subject and now I have a problem. My computer froze during a video that was streaming and I had to reboot. Everything was still connected and after the restart the only image on my TV was (and still is) the desktop background when connected. It no longer transmits the video, nor does my computer images get large and fuzzy like it did before when connected either. Audio is unharmed. I understand I may have to get another cable but I don't understand why since it still transmits an image, just not all images. Any help would be appreciated. Thanks!

It sounds like before the Mac was in mirror mode whereas now it is in extended desktop mode. If you go into System Preferences/Display there is a checkbox for turning mirroring on or off. Turn it on and things should go back to how they were before.

Mini Display Port to VGA adapter + Monitor Eizo s2231W = CRASH

I purchased a new macbook pro last month with 2 adapters, one for VGA the other for DVI. I'm having some trouble with the Mini-DVI to VGA adapter. The Mini Display Port to DVI adapter works well.
When I attach the VGA adapter to the monitor it works well for a couple of minutes, then I dont know why my MBP crashes and I can see a purple or white screen. The crash is really a crash... cauz I cant do anything. My mac is frozen and the only way to resuscitate him is to keep pressed the power button for a while till it turns off, and then turn it on again.
You can say... why do you need the VGA if the DVI works...
the problem is that I'm probably supposed to use it one day attached to a projector because of a presentation at university.
So I dont wanna see my new macbook pro freezing in front of my professor.
please help.
EDIT:
adding some precious information
My hardware configuration as regard the graphic chipset is
NVIDIA GeForce 320M
The resolution of the external monitor is 1620x1080
I'M NOT using the mirroring ( but the desktop extension)

I had the exact same problem. It actually escalated from there and it would crash at the startup screen (the white one with the apple and the spinning gear). The only way I was able to fix this was to reformat the entire computer. I was lucky enough to have backed up all my data when it first started crashing. I've only reformatted yesterday and things seem fine for now. I don't know what caused it, or how to fix the problem any other way.

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.

Mini DisplayPort to VGA Adapter won't work on thunderbolt port

Hello
I bought 2 new Macbook Pro 13' , 2.9 Ghz Intel Core i7, with 8 Go 1600Mhz DDR3, Intel HD Graphics 4000 512 MB, Mac OS X Lion 10.7.4 (11E2617).
I have connected a Mini DisplayPort to VGA Adapter in order to show presentations on different LCD projectors but no image appear.
The external monitor is detected but no image is shown. I have tried to change the frequencies: parts of the screen appears but no a correct image. I have the same symptoms with the 2 Macbook Pro. Using old Macbook Pro with the same Mini DisplayPort to VGA Adapter, the slides are showns normally.
I make a test with a Mini DisplayPort to DVI Adapter and with a Mini DisplayPort to HDMI Adapter and everythings works correctly with both adapters.
Does anybody has a solution?
Thank in advance for your help
Philippe

By any chance were you using a VGA->DVI adapter when trying to use the Mini-DisplayPort->VGA adapter? As in Mini-DisplayPort->VGA->DVI?
I had trouble with this. I found going straight to Mini-DisplayPort->VGA or Mini-DisplayPort->DVI worked perfectly but once I added a VGA->DVI or DVI->VGA adapter to the chain the screen would be detected by OS X but the monitor itself would give the "No signal detected" message. I tried all these combinations on the same monitor.
Not sure if it helps your situation but I have noticed some similar issues.
EDIT: Oh, and I have the new MacBook Pro 15inch with Retina all fully updated. I noticed that with my late-2009 White Macbook didn't have this issue with the cables and adapters.

Mini Display to VGA adapter stopped. The Mini Display to HDMI is still working fine. How´s that possible?

The mini display to VGA adapter had stopped, whinle the Mini Display to HDMI keeps working fine. The minid display to VGA adapter was replaced and the VGA cable as well, and the problem is the same. This test was made with two diferent monitors with VGA entries. How´s that possible to happen? Is that a configuration trouble in the MBP?

The Apple´s customer support gave us the solution for this problem:
SMC reset
PRAM reset
The VGA adapter return to work properly aflter this procedure.

Mini port display to vga adapter won't work

Hi,
since I upgraded to Maverick I haven't been able to connect to my projector via the miniport display to vga adapter. It all worked before that.
I need to connect to the Interactive White Board for my work and it really annoys me. I'm forced to use a windows computer. Can you help me?
Have you considered fixing this problem, which is complained by many as far as I know?
Thanks.
El3na.

By any chance were you using a VGA->DVI adapter when trying to use the Mini-DisplayPort->VGA adapter? As in Mini-DisplayPort->VGA->DVI?
I had trouble with this. I found going straight to Mini-DisplayPort->VGA or Mini-DisplayPort->DVI worked perfectly but once I added a VGA->DVI or DVI->VGA adapter to the chain the screen would be detected by OS X but the monitor itself would give the "No signal detected" message. I tried all these combinations on the same monitor.
Not sure if it helps your situation but I have noticed some similar issues.
EDIT: Oh, and I have the new MacBook Pro 15inch with Retina all fully updated. I noticed that with my late-2009 White Macbook didn't have this issue with the cables and adapters.

Any issues connecting the new MacBook to LCD projector with VGA adapter?

I do presentations on the road using my old MacBook with whatever LCD I find when I get there. I run Keynote with lots of video clips in my presentations. I carry a Mini-DVI to VGA adapter. Most often it works fine.
I was hoping to update to the new MacBook, but I'm concerned about the display issues on the discussion board.
Has anyone had any experience connecting the new MacBook using Mini DisplayPort to VGA Adapter?

I received my MB (aluminium) 2.0 in early November, but only this week (2nd week December) have had a need to use it for a presentation via the Mini DisplayPort --> VGA adapter.
I thought I could use it just as I did my previous (white 1.83 MacBook) laptop, but this one is a bit quirkier. Plugging in the adapter cable results in a system freeze. Unplugging the cable will restore mouse control (unfreezing the computer) in most instances, but not all.
Turns out that in order to use an external VGA connection, I need to have the adapter plugged in and restart the machine. If the external display is not present from boot, then it freezes.
This is unlike my previous MacBook, in which I could plug-unplug willy-nilly. The screen would flash blue a couple of times and all would be fine, with the external extended display detected and functioning. This was one of those nice "Mac" things that my Windows-using colleagues were somewhat jealous of, as they constantly have trouble getting their laptops to recognize the LCD projector.
Sadly, it looks like I'm now living in their world...
M

Why is it impossible to connect a MacBook Pro running OSX 10.8.5 to a Panasonic projector using VGA adapter?

A few of us tried for 45 minutes to connect a BMP to a Panasonic PT-F200NT projector.
Please help.
Display options didn't work.
Computer search on the projector remote didn't work.
The button to automatically find connected devices didn't work.
Changing the VGA connection didn't work.
Turning off the projector, then turning on again with the cable and VGA adapter plugged into the computer didn't work.
Selecting computer 1 or computer 2 didn't work.
Pressing F7 or fn+F7 didn't work, neither did and other combination of fn+F#, or alt+F#.
Unpluggin and pluggin in again didn't work.
What does work?
Why is it that when conncting to projectors all Windows machines work perfectly, without any trouble every time, but Mac machines always cause trouble.
Why is it that Mountain Lion (OSX 10.8.5) makes it harder than previous OSs?
If you have any suggestions that would be great, thanks.

Thank you.
Other advice I've had is to keep unpluggin it and plugging it in again (thunderbolt adapter).
I'm nowhere better than I was before.
I guess it's just as you say (how I'm interpretting what you say):
The Thunderbolt adapters are just poorly made.
It works 50 % of the time, maybe they have random number generators in them centred on 1, and they only work if the random number is 1.

Lightning VGA Adapter with Retina iPad

I am having trouble getting a Lightning VGA Adapter working with an iOS 7 Retina iPad, although the same adapter/cable/display combo works perfectly with an iPhone 5. When I attach the cable the display indicates a 1024x768 60 Hz input, but it stays blank. The iPad then becomes unusably slow - each interaction taking several seconds. When the adapter is removed, it goes back to normal. Does anyone have any idea what might be going on?

I have fixed this myself. The iPad was still on iOS 7.0, and the problem went away after updating to 7.02. I guess there are some undocumented bug fixes in this release!

No video signal using mini dvi to vga adapter.

I just bought a macmini,the last generation. Separately I bought on the apple store a mini dvi to vga adapter because when I bought the macmini I forgot to buy that....once the adapter arrived I tried to turno on the mini,everything seems to be normal,the mini works,the audio signal is normal and after the startup it asks me to choose the language,but the screen says there's no INPUT SIGNAL. I tried another mini dvi to vga adapter,the vga wire works with my pc so I didn't try another one,I tried the reset of the mini,nothing....do I have to try with "miniport to vga" adapter or is there something else I can try?

I got my Mac Mini yesterday and I am having the exact same problem as you are having.
I've tried on two different TV's but it is just not sending a signal. Is it faulty?

Using Mini DVI to VGA adapter on MacBook

I bought the adapter from Apple & hooked up my LCD monitor to the MacBook, but the video I get on the monitor is different that on my laptop. It has an old screen background & the dock but nothing on my desktop shows up. Also, when I'm plugged to the monitor, my dock disappears on the laptop screen. Is there some setting I need to change? It worked fine with my G4 PowerBook.
Thanks for any help....
MacBook Mac OS X (10.4.6)

i use the mini dvi-vga adapter in my classroom almost everyday. It sounds like your new monitor is running as a side by side monitor to your display instead of a "replacement" display.
To get your projector/monitor to basically show whatever is on your macbook screen once you've hooked up press F7....this should make your projector/monitory become your display with your dock & all of your desktop stuff. Your new monitor will completely mirror your display.
THis should do what you're looking for.

Using mini-DVI to VGA adapter to Samsung display

I have 2009 late model of mac mini, The text on display looks washed out, not clear or sharp at all from day one, I thought it was the old model of monitor, tried the same cable to another monitor on another computer, SAME. so I thought the problem could be the cable or adapter.
It's hard for me to believe is the signal from computer. I'm using VGA adapter made by Dynex bought from Best Buy.
Anybody has suggestions?? Thanks

Yeah, My old Samsung is lcd synmaster 17", bought many years ago at around $1000. Crazy, crazy price looked back. It's fine when I used it on the retired old Dell. It must be the adapter, trying not to buy another VGA adapter, could not image my next lcd will use one, anyway.
This cable has only 14 pins vs 15 pins on the other cable, not sure if it matters?? Or if Safari has anything to do with it??
Thank for you reply...

Apple Mini DisplayPort to VGA Adapter flickers

I have 2 Samsung SyncMaster 23 in, HD Displays connected to my Mac Mini. The Display connected via the Mini DP to VGA adapter flickers erratically. This started happening after installing the latest upgrade of OSX Mountain Lion. I called Apple support, they gave me a list of steps to try to fix the problem, which I followed to the letter, to no avail. The problem is annoying, to say the least. I tried to find out if there was a firmware update for the adapter, but I am running the latest firmware (1.03).
I would appreciate any help to solve this issue.

Thank you for your message.
1. Both monitors only have VGA input.
2. The other adapter, Mini-DVI to VGA has always worked properly.
3. The Mini DisplayPort to VGA adapter is an Apple original product I bought at an Apple store. I bought 2 adapters.
4. Actually I have 2 Mini DisplayPort to VGA adapters: The one I use with my Mac Mini, and another adapter I use to connect my Mac Book Pro to a Panasonic projector.
5. I have tried using both adapters, and the flickering problem is present using either adapter.
6. I believe the flickering problem is definitely something that needs to be addressed and solved by Apple. The adapter is its product, and should work as advertised, no matter what version of OSX I am running. Please remember that there was no flickering before I upgraded to the latest OSX Mountain Lion.
7. I do not believe buying an adapter from another manufacturer, as you suggest, would solve the problem.
Thank you for your help.

Apple Mini DVI to VGA Adapter

I purchased a Apple Mini DVI to VGA Adapter for my MacBook (early 2008).
When I plug the cable into my MacBook it works fine, I have to drag the browser from my macBook onto my LCD using the curser. But when I do this with iTunes and I want to watch a film or music video there is no sound. Does anyone have any ideas of how to solve this problem or if im using it right.
Please help.

Ah. Okay. Well you need to output the sound from your MacBook to your TV. You need another cable to carry the audio. You can use an 1/8 mini audio to TOSLINK (if your TV supports optical audio input) or 1/8" to RCA audio (those red/white cables).

VGA adapter trouble

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