IMac external monitor video connector, huh?

Apparently, there are at least FOUR different types of video connectors in use these days.
WHICH one is used for External video on the iMac (tiny, rectangular) and is it analogue or digital?

Mini-DVI to VGA to connect to a computer monitor with a 15-pin VGA connector (also on some modern TVs).
Mini DVI to Video to connect to a television using composite video (RCA jack) or s-video (mini-DIN).
Mini DVI to DVI to connect to a monitor having a DVI connector.

Similar Messages

IMac, external monitor flicker/blink blue

I have an external monitor hooked up to my iMac and I have had no problems until today. It's the mini-DVI to VGA style connector.
During the day, I jarred my desk with my knee. The iMac and external monitor both blinked about four times, becoming blue like in the startup process. The view on the external monitor also went fuzzy for a second. No CPU functions appear to have been affected.
I shut down, checked all the cable connections, and restarted. The problem seemed to be resolved - until later when I was using the computer, and the same thing happened twice in about two minutes. This time the desk hadn't moved at all. Again, no CPU functions appear to have been affected.
In the Console, I see these messages at the time of the events:
<Error>: kCGErrorIllegalArgument: CGSGetDisplayBounds (display 3e41b5b9)
kCGErrorIllegalArgument: CGSGetCurrentDisplayMode
kernel
EDID does not contain Extended EDID, not valid for audio
A search seems to indicate that it may be cable-related, which is the best-case scenario, and I'm hoping it's not the graphics card or logic board.
Can anything be done to stop this from reoccurring?

Now it appears the problem has gotten worse. Much worse.
I've had the external monitor disconnected for five days now. I tried to plug it back in and the computer did not recognize it AT ALL. Nothing showed up on the display.
In addition, or however, the mouse movement on the iMac itself became very, very unresponsive.
Once I disconnected the monitor, everything on the iMac was functioning normally.
Have I messed something up inside the iMac?

IMac external monitor not working after lion upgrade

Hi,
I have had an external monitor hooked up to my 09' imac for over a year now. I upgraded to Lion and ever since then it hasnt worked but one other random time when I moved and hooked everything back up. Im very tech savy, but this just doesnt make sense. Have combed google to find a solution. I have a Samsung 22in moniter and all the blue power button does is blinks at me. I am using a miniDisplay to DVI connection.
Does anyone have any suggestions other than resetting the ram?

I guess it's possible you've got some kind of hardware problem.... but not likley given it started with you installed your OS.
Here's a few things to try:
1. see if you can borrow another monitor just to be sure your monitor isn't the problem.
2. in System Prefs, and the Displays pane, click on the Detect Displays, then then the Gather Displays. If you get two diffenet display panes, that would lead me to think it's a monitor problem.
3. Lastly, disconnect your 2nd display, and restart. Then Shutdown, reconnect it, and see if that helps.
and of course..
4. make sure that all of your connections and adaptors are tight.

NEW09 imac External Monitor causes mouse to freeze every 4 sec for half sec

Would love some help
Every time I connect my external monitor my mouse will stick every 4 sec for less than a half sec (not exact but it it's doing it in a repeating pattern).. If I unplug it it stops and when I plug it back in in starts again.
4 day old imac 10.5.7 fully updated 2009 CTO Ati 4850 4gigs ram 1tb storage.
I tested all of my peripherals on 3 other mac's including new 8 core and mini and it works just fine (even when I connect the DELL monitor.
Also, tried to do a mirror instead of extended desktop and the problem persists
peripherals include Intouse3 Wacom with latest driver (I thought that was the issue so I tried older drivers and uninstalled them). Mighty mouse USB and keyboard w numeric keypad
External monitor is a new dell "24 1920 1080 monitor
Thanks it would be awesome if I didn't have to lug this thing down to Gen bar

Did you do the usual general trouble-shooting?
Run Disk Utility and use the +Repair Disk Permissions+ on the startup volume.
When you restart, use the reset PRAM procedure.
http://support.apple.com/kb/HT1379
If that does not help, try creating a new admin user account in System Preferences Accounts pane
http://docs.info.apple.com/article.html?path=Mac/10.5/en/8235.html
Log out and log in to the new account. Does this same problem occur in the new account? If not, you have narrowed down the cause to something in your normal account. It could be some corrupted user preference setting, or some background process (perhaps something third party) that runs when you are logged into your normal account.
If it does occur in the new account too, restart using the Mac OS X installation disc. Insert the disc and restart with the C key held down to force a restart from the optical drive. When it gets to the Installer's first screen, don't go any further, but note if this problem still occurs (when you are booted from a different system).

IMac External Monitor stopped working

I have an Intel based iMac and have been running my old 17inch apple monitor as a second display for over a year now. For no apparent reason today the monitor stopped working. The screen just appears black. there is power getting to it as the power light is on and the computer detects the display fine. I can even move objets to that monitor, I just cant see anything. Any helps would be appreciated.
thanks
Joe

Yep, have the same problem using a 3rd party cablesson mdp-hdmi adapter. Everything worked fine until quite recently. I have tried pretty much everything to fix it but nothing seems to work. I'm almost convinced it's an OS problem, as everything works fine when I boot into my windows bootcamp partition.
Apple, please get this sorted! I'm reluctant to shell out $35 only to find that I have the exact same problem with the official adapter. Though I probably will anyway because I urgently need to get my display working again.

Problems with external monitors

Just updated to Maverick. Now when pulggin in the external monitor DVI connector the Macbook monitor goes very dark
Anyone else having this problem? It also happens when I plug in the DVI connector for the DLP projector. Never happen bofore upgrading to Maverick

Hi be55,
Were you able to resolve this issue?
I just upgraded to Maverick and am facing the same dark screen issue with my Catleap Q270 external monitor.

External Monitoring...how is it for you and what for the future (CS5)

With the prospect of CS5 on the horizon and many of us considering it as the opportunity to up spec O.S,, software and hardware simultaneously (largely due to 64-bit)...I am wondering how everyone is getting on with their external monitoring solutions and what the expectation is for CS5.
In my opinion the way it is now (in CS4) is less than professional and needs sorting out (hopefully in CS5).
Issues are : Video / audio / synching internal and external devices so all play together.
Premiere Pro runs two playback / preview systems : One for scrubbing and source monitoring; the other for Program playback /preview.
(Example : Observe how and when audio plays through the audio mixer or observe what and when video plays through external or internal monitor...then note what happens when you PUSH PLAY - spacebar)
Without repeating the problems in depth, I would like to say how I wish it worked for me as an editor in a Pro environment with clients that sit in my suite as we work together.
I have a two monitor NLE set up plus one external for client viewing (and also for grading /CC).
I need the External Monitor (Video & Audio) and the Internal Monitor (Video and Audio) to playdown together. I dont want one to stop and the other to function.
I want them both working simultaneously playing video and audio. Am I supposed to get out of my chair to wander over to the client monitor to see the changes we just discussed then I actioned in the timeline? !!!!!!
A feature request : I would also like to be able to access the Playback Monitoring via Shortcut keys or On Screen buttons. It is very handy to be able to playback on the second monitor but it should be defaulted at 100% (Not Fit - as per the Program Monitor)
As regards HD. One should not have to install 3rd Party cards to monitor HD externally. The problem with that is one then needs to use the Presets from that card manufacturer. The Presets , eg P2 work so well in PPRO...so why do we need to mess with 3rd party drivers just to monitor.

Exactly!
I just like to let people know where is the origin of that shortcut (in previous CS editions it was in PROJECTS menu bar tab, and since CS4 it is in SEQUENCE menu bar tab....
I was trying to figure out what do you thing my "atom like button" )))
Finally figured out that it is the RGB icon (which is more the molecule then atom), but you gave me a hard time looking for atom!!! I thought it is in 3rd place, somewhere, as well - but "Atom" almost remained misteri
Anyway, interestingly enough, I just succeeded in getting my picture out on EXTERNAL CRT monitor through DV-monitoring in playback settings - FireWire through my scope (deck) and to TV....
And picture appeared.... But stood still.... Wouldn't move.... except when scrubbing... But when press PLAY it froze both on external DV monitor and PPRO program monitor in software!!!
Maybe it is my old ATI 3850 HD VGA - and maybe it just can't work!!!!
This pisses me off a bit!!!
I have unpacked copy of new AVID MEDIA COMPOSER 5 - which I have decided not to install until I am through with searching all new possibilities in CS5....
But now, I feel more and more like opening and installing it ----- Just to see how is it managed there!!!
It is hard for me ---- even to think to leave ADOBE ------ it is already enough that 80% of my Clients first ask me "DO YOU HAVE AVID".... and then, to half of them I somehow explain that it is gonna be better if we give ADOBE a chance, and the other half is just hard on their flexibility --- they've heard everything in Hollywood is edited in AVID, so they want their project to be the same....
And I was having a real hard time defending PPRO for years, preventing my Clients to make me switch to AVID - and look what ADOBE did to me now - ADOBE made me reach for my AVID MC v5 and install it and have it ready to take over any project, including the one I am working on right now!
Why, Adobe, Oh, Why!?

Need a Video Out conenctor from an '09 iMac to an external Monitor

Hello,
As I mention in the subject line, I'm in need of a video only connector to go from my '09 pre-thunderbolt iMac to an external monitor. This connector can go to either a male DV or male HDMI.
Thank you!

These optional accessories are available for your model as per Apple:
Options
Accessories
Time Capsule (MB276LL/A)
AirPort Express Base Station (MB321LL/A)
AirPort Extreme Base Station (MB053LL/A)
Apple Wireless Keyboard (MB167LL/A)
Apple Wireless Mighty Mouse (MB111LL/A)
Apple 8x DVD-R Media Kit (M9472G/A)
Apple Mini DisplayPort to DVI Adapter (MB570)
Apple Mini DisplayPort to VGA Adapter (MB572)
Apple Mini DisplayPort to Dual-Link DVI Adapter (MB571)
Apple FireWire Cable (M8706G/A)
AppleCare Protection Plan (MA520LL/A)
iMac 24-inch VESA Mount Adapter (MB060G/A)

Output iPad video to 27" iMac as an external monitor?

Hi, I was wondering is it possible to Output iPad video to 27" iMac as an external monitor using iPad VGA adaptor?
Thx.

You'd need something to redirect the VGA signal to a DisplayPort connector on the iMac. Your other option is VGA is easily adaptable to S-Video, though its resolution is not as great as VGA and using http://www.elgato.com/ 's hardware for that. A third one is using a Remote Desktop app for the iPad. Several exist.

Can I attach an external monitor to my iMac G5 (ALS) if the video card is dead?

I don't know for a fact that the video card is dead, but the screen on my iMac (PPC/ALS) 20" gradually started flaking out over several months and is now dead. Computer boots up fine and I'm looking at it through target mode right now. I want to keep using the computer if I can, so I am wondering if I can attach an external monitor through the DVI slot even if the video card is kaput. I'd like to get an opinion or two on this before I buy a used monitor and cable. Thanks!

You have found the answer. If the video chipset is OK but there is a fault in the internal display or its cabing, an external monitor will work. However, if the video chipset--which is farther "upstream" in the system--goes bad, the option of an external monitor is off the table.

Can i use my 21.5" imac as an external monitor for my macbook pro?

I have a 21.5" iMac (with Intel processor) that I'm trying to use an external monitor for a new Macbook Pro. Both machines have a thunderbolt input. I bought a Belkin mini displayport to mini displayport connector, but my macbook is not displaying on the iMac. I saw videos online showing this done with the 27" iMac, saying you just needed to press Command+F2, but that is not working for me. I can't seem to find any posts confiming if I can use my 21.5" iMac this way though.

https://discussions.apple.com/thread/4082303?start=0&tstart=0

Bypass failed PAV (power analog video) to use external monitor?

"Patient" is a 7+ year old iMac DV 400 (CRT; slot-loading). It fails to start up. The LED in the power button lights briefly, it sounds as if the hard drive starts to spin up, and small patches of light appear in the upper and lower corners of the right side of the screen. Prior to this status, the display had been reduced in brightness for a couple of months. The day before it died, the image on the screen started pulsing at the sides and horizontal streaks flashed across the upper third of the image. I shut the machine down for half an hour then restarted and it was back to normal. The next day, the pulsing and lines returned; shut down and tried to restart in 1.5 hours, but no go (symptoms above).
I replaced the 3.6V lithium battery and reset the PMU/CUDA. No change. I am told that the symptoms are characteristic of a failed PAV board. I read in another thread here ( http://discussions.apple.com/thread.jspa?messageID=3110595&#3110595 ) that it may be possible to bypass the failed PAV and connect an internal cable (via an adapter) display (i.e., not using the existing extrnal VGA port). Here is a quote from the above thread (12th reply; "However, for those of us with tray-loaders iMacs that have failed video boards, you can simply disconnect the internal video connector. This connector is essentially a "VGA" cable inside the iMac case, but it uses the old-style Apple video connector. It is a simple matter to buy an Apple-to-VGA adapter and connect it to the internal video output and connect that to a VGA cable leading to an external monitor".
Is this possible with a slot-loading iMac? If so can someone please point me to instructions for doing so (ideally with photos/illustrations), or explain how to do it.
I will be very greatful for any help getting this iMac running again.

thanks for responses
@BurntSushi
here is what scrot gave me: http://dl.dropbox.com/u/292474/arch/output.jpg
but what i see is more like: http://dl.dropbox.com/u/292474/arch/output_view.jpg
@ewaller
interface is VGA. i have tried changing the H. Position on the monitor to "slide it back" but even when it's completely at 100% on one side i gain back half of the black area. i don't know what else i can change on the monitor that would help me out.

Macbook + External Monitor + HD Video = 89 (C) Degrees

Mid 2008 Macbook, 2.4ghz, 4 gig ram,
BenQ 1920x1080 monitor via DVI
How concerned should I be with such a high temperature? The CPU has peaked at 89 degrees but it runs consistently hotter (65-70) on the external monitor.

Hi, Amanda.
I am guessing you are receiving a message: "This movie cannot be played because a display that is not authorized to play protected movies is connected." To view HD video on an external display, the display must have a digital connection (DVI, DisplayPort, or HDMI) and also support HDCP. If the monitor is HDCP compliant, then the issue would be related to the connect between the Mac and the monitor. I would recommend trying with one of the approved digital connectors.
iTunes: Purchasing and viewing HD videos
http://support.apple.com/kb/ht3209
Hope that helps,
Jason H.

Imac as external monitor for windows Notebook

Hi,
I want to switch from my Windows Pc to a mac for private use.
I prefer the new iMac (2011) 21,5" but I could not get an definite answer (not even in my local apple store) if it is possible to connect an existing Notebook (with VGA Mini-d-sub or DVI connector) to the new iMac in order to use the iMac as an external monitor for the Notebook.
I definitely need this for my business work in my home-office so this information is vital.
If ist is not possible I have to take the macMini and stay with my standard monitor.
Can please someone tell me if it is possible at all and if so, how it can be done.
I searched the internet and only found out that it was possible with the older 27" model but no information for the 2011 21,5" so please help!
Thank you in advance for your Support.
Celindir

Hi,
Sorry to say, but ...
The 2011 iMacs (21.5" and 27") can only be used as a second display via a Thunderbolt-to-Thunderbolt cable.
The 2009 and 2010 27" iMacs can be used as a second display via a DisplayPort connection.
http://support.apple.com/kb/TS3775 andhttp://docs.info.apple.com/article.html?path=Thunderbolt/10.6/en/30822.html
Stefan

Can I use my iMac 2009 as an external monitor for a MacBook Pro

I will soon be getting a new MacBook Pro with Retina display. It has an HDMI port.
My current iMac 21.5" late 2009 model seems to have a port with what looks like a little monitor symbol, next to the firewire port. And the specs say:
Graphics and video support
NVIDIA GeForce 9400M graphics processor with 256MB of DDR3 SDRAM shared with main memory3
ATI Radeon HD 4670 graphics processor with 256MB of GDDR3 memory
Built-in iSight camera
Mini DisplayPort output port with support for DVI, VGA, and dual-link DVI (adapters sold separately).
Support for extended desktop and video mirroring modes
Simultaneously supports full native resolution on the built-in display and up to a 30-inch display (2560 by 1600 pixels) on an external display
Does this mean that port is just for video output to an external monitor? Or is is possible to also do video in?
On the one hand it feels like a waste to use a perfectly good iMac as a monitor. But the MacBook Pro actually has better specs, and so I was wondering if it is possible anyway.
Thanks,
doug

Thanks for your reply. After reading the article though, I'm still not really sure what the answer is. For example, you mention something that can be done, with some hurdles to go through, for 27" iMacs. Mine is a 21.5" iMac, but seems to have the same port you mentioned in the article. Or maybe it isn't. Anyway, I'm still not sure if it is possible after reading that. Interesting information though.
doug

IMac external monitor video connector, huh?

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