HT3382 27" imac to external display vga or hdmi not detecting

I have a mid 2010 27" imac, with i3 processor, 16 GB ram, 1 TB hdd. Have both a mini dp to vga and mini dp to hdmi adapters. samsung 23" monitor with both hdmi and vga inputs. hdmi adapter never worked, the vga adapter works in a highly intermittant fashion. Did a fresh install of mountain lion, no difference. Very frustrating. Have also reset pram and smc. Anyone have any thoughts?

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External display through MDP/HDMI not working

Can anyone help me?
My Dynex external tv is reporting "No Signal" while connected HDMI via a moshi MiniDP to HDMI adapter. It was working perfectly until I reinstalled Windows 7 over the weekend. It worked for a little bit today, and has now returned to No Signal. The display works perfectly with Snow Leopard.
Can anyone help? I'm currently running NVIDIA Verde 275.33 drivers released today.

I spent a bunch of hours working on this, and I somewhat came to a conclusion: nvidia's drivers are at fault.
The display reported no signal while using the 275.33 drivers released yesterday, and with the 270.61 drivers released April 18th.
I rolled back to the drivers provided with this macbook, which were 197 or so, and it worked. Then I tried the 267.76 drivers released in March. Those drivers worked as well and they are what I currently run.
If anyone else with a 2010 MBP 13" (or other sizes) have this problem, try rolling back your drivers to 267.76 verde drivers provided by nvidia.

IPad2 won't sync with iMac...only my iphone4 shows in the device window on my iMac. For some reason it will not detect my iPad via my wireless network!

iPad2 won't sync with iMac and only my iphone4 shows in the devices window on my iMac. For some reason it will not detect my iPad via my wireless network! The iPad will sync when plugged into the Mac however looses connection and disappears from the device window when unplugged.

Jayplus wrote:
I have a D-Link WBR-2310 and already bought an external antenna which cost me additional. Besides moving my iMac, what options do I have?
You already have a wireless router or have just bought one, or do you have an ad hoc connection from iMac to AppleTV?
If things worked in the other location this all point to poor network performance/connectivity. It may be the connection is intermittently lost - small files transfer ok, but interruptions during longer transfers scupper the process.
Interference from cordless phone bases or microwaves (and neighbours devices) might also cause connectivity issues.
Signal strength bars are often not that useful, but will indicate connection to the main wireless device they connect to - so AppleTv may have a good connection to the router but a poor iMac connection to router is not displayed by AppleTV which only shows the connection to the first device in the chain.
You could consider some home mains newtorking plugs such as those made by Devolo but they usually have to be on the same mains ring.

IMac 24¨External display no longer working

I have a Intel iMac 24¨using an additional external display - Fujitsu.
It has worked perfectly since I bought it and suddenly the external display will no longer work. There is nothing wrong with the Fujitsu because I have tested it on other computers but will no longer work with the iMac.
I have checked all connections, running current update and I am now at a loss as to what to do next.
I read that there were problems linking external displays when the iMac 24¨came out but I am assuming that this was resolved long ago. Even so, mine has worked fine until now. Any ideas please?!
Thank you

Hi Canaryguy
1. Shut everything off display, computer and disconnect everything.
2. Reset the iMac's SMC > http://support.apple.com/kb/HT3964
+● Shut down the computer.+
+● Unplug the computer's power cord.+
+● Press and hold the power button for 5 seconds.+
+● Release the power button.+
+● Attach the computers power cable.+
+● Press the power button to turn on the computer.+
3. Now first reconnect the DVI or VGA cable to the Display.
4. Then connect the Mini DVI to ??? to the Cable coming from the Display.
5. Lastly plug the Mini-DVI adapter into the iMac.
6. Then turn the Display on and startup the iMac.
If that does not work try a different Mini-DVI to ??? adapter and cable, or test your adapter, cable and display with another iMac.
If all of the above fail, then the iMac needs to be serviced.
Dennis

Connecting iMac Keyboard to Macbook Pro while using iMac as external display

I'm trying to using my iMac wireless keyboad for my macbook pro while my iMac is in external display mode but I can't get the keyboad to connect. I've tried disconnecting the wireless keyboard from my iMac but it won't go into target display mode without the keyboad. Can I used my iMac wireless keyboard with my Macbook pro while my iMac is being used as an external display?

No, not reliably. If it's paired with both machines you can turn it off and turn it back on but it's a toss up which machine it will connect with. If you took it to another room so the iMac didn't see it, you'd have to disconnect the minidisplay port/thunderbolt cable and then it would exit target mode display.

Using imac as external display for my MacBook

Can I use the new iMac as an external display for my MacBook?

Here's the >New iMac Spec's and there is only Mini-DVI output port and "NO" input port.

Question on Using thunderbolt iMac as external display with a Macbook Air

If I connect my macbook air to new thunderbolt iMac - can I access peripherals attached to usb, firewire, ethernet like the thunderbolt 27"?
if so how can i do this?
thanks!
Derrick

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Using iMac as external display from Macbook Pro flickers static and crackles.

I'm trying to use my iMac as an external display.
When I plug in my early 2011 Macbook Pro into my Mid 2010 iMac via a Belkin Mini DisplayPort to Mini DisplayPort, the iMac screen flickers with static and there's random crackling noises.
Weird thing is, when I try the same thing with a new Macbook Air, everything works perfectly!
Here's a quick video demonstrating what I'm talking about - http://youtu.be/xxTXVRffWwE
Are the two not compatible or do I just have a defective Macbook Pro? The Macbook Pro works fine with the Cinema Display I have in the office...

Huh, It should work like this:
Target Display Mode: Frequently Asked Questions (FAQ) - Apple Support
iMac Model
Cable Supported
Port on Source Computer
iMac (27-inch Late 2009)
Mini DisplayPort to Mini DisplayPort
Mini DisplayPort or Thunderbolt
Actually that table seems illogical. The cable supported is mini to mini display but the port says "or Thunderbolt"
Does that seem contradictory to you?

Can I still use 2009 27" iMac as an external display if it could not boot successfully itself?

My friend has a 2009 27" iMac. For some unkonwn reasons, this iMac now could not boot succesfully recently.
As I know, this iMac could be used as an external display in "target display mode", right?
Could it be still used as an external display if it fails to boot (turned on) ?
Thanks !

mende1 wrote:
stanleyoowa wrote:
And, what do you mean by " 'display only' is repairable, possibly with little effort"? Thank you very much !!
LousyFool is saying that the iMac is a computer easy to repair, at least with hard disk problems. However, you can't replace the hard disk yourself or you will avoid the warranty, so if the iMac is in warranty, you should take it to an Apple Store. If it's not in warranty, you can try to do it yourself
Sorry, hit Add Reply too soon...
stanleyoowa, your friend should boot the Mac from the original OS X system disk that came with the Mac, then use Disk utility to check the internal HDD. Maybe it's not entirely gone but can be repaired. Eventually, it must be formatted newly and the OS re-installed. Only worst case a new HDD is due.
With the Mac being from 2009, there will be neither warranty no AppleCare anymore, so DIY might be in order in that worst case. There are instructions on the web. In any case, it being a 27" iMac, I find it sad to 'degrade' it to a 'display only' function...
Message was edited by: LousyFool

G550 External Display VGA to TV HDMI?

My G550 only has a VGA out and no HDMI out.
I want to play a movie on my laptop and be able to watch this on my TV.
I have bought a VGA to HDMI cable but cant seem to get it to work.
I set the TV to HDMI and press Fn + F3 to try and play via external monitor but it flickers briefly a fraction of a second and does nothing.
I have XP installed and Im using the graphics driver (IN2VDO09WW1.exe) installed from Lenovo support driver page.
My Display properties page under settings tab displays "Plug and Play Monitor Intel(R) 4 Series Express Chipset Family"
Have I the correct drivers installed to get this to work and can I play direct from laptop to TV via a VGA to HDMI cable only???

Hi Guys
Imsure there must be someonewho can tell me if this can be done or ifImwasting my time trying to go directly from VGA to HDMI via cable only??

Using iMac as external display with MBP, can this be done?

I know...
This has been posted before, but I have as of yet not found a straight answer. Mostly peoples recommendation is: "Buy a display".
However, I have an older iMac, 20" and I have a newer MBP 15". The MBP has a faster graphics card, better processor and more RAM. But I still like sitting at the table using my iMac, because the comfort of working is better this way.
Now seeing that I have both, is it possible to connect the two, and use the iMac for a display? Preferably without having to buy a whole lot of expensive cables, applications or do strange hacks risking hurting myself or my computers
Thanks all
Have a nice day

but I have as of yet not found a straight answer.
I think you are getting the straight answer. You need "buy a display" because a display has a video input port. An iMac has a video output port, but NO video input port. Therefore, you cannot use it as an external display, like a regular display.
You could give the iMac a video input using a USB interface device, but the cost of such a device that would provide good quality video into the iMac would cost about the same as (or more than) a low cost LCD display. And it would probably not be ideal in terms of performance.
You could also use this clever program to use a fast network connection and VNC to display the MacBook Pro's second screen on the iMac screen.
http://www.screenrecycler.com/home.html
In your case, the program will create a virtual screen for the MacBook Pro and shares it with the iMac in much the same way as the +screen sharing+ feature. Disadvantages are relatively slow image refresh rate (because the signal is going over the network) and the need to have the iMac turned on and running separately. The speed part will not be that bad in your case, if you use a Cat-5e or better Ethernet cable to connect the two Macs, so that you will have gigabit speed. You can give it a try at no cost to see if it is an acceptable solution (in time-limited demo mode).
I use this program to give my iMac a third display. The +third display+ is an old PC laptop running Linux (Ubuntu).

Using iMac as external display on MBP (Lion)

I'm trying to use my 27" iMac as the external monitor for my MBP, both running Lion. I saw an article (support.apple.com/kb/PH4469; seems to be unavailable now) and said I just need to hit command+F2 once the computers are connected (using thunderbolt to thunderbolt cable). However, Command+F2 doesn't appear to have any effect.
Please advise.
TIA,
David

but I have as of yet not found a straight answer.
I think you are getting the straight answer. You need "buy a display" because a display has a video input port. An iMac has a video output port, but NO video input port. Therefore, you cannot use it as an external display, like a regular display.
You could give the iMac a video input using a USB interface device, but the cost of such a device that would provide good quality video into the iMac would cost about the same as (or more than) a low cost LCD display. And it would probably not be ideal in terms of performance.
You could also use this clever program to use a fast network connection and VNC to display the MacBook Pro's second screen on the iMac screen.
http://www.screenrecycler.com/home.html
In your case, the program will create a virtual screen for the MacBook Pro and shares it with the iMac in much the same way as the +screen sharing+ feature. Disadvantages are relatively slow image refresh rate (because the signal is going over the network) and the need to have the iMac turned on and running separately. The speed part will not be that bad in your case, if you use a Cat-5e or better Ethernet cable to connect the two Macs, so that you will have gigabit speed. You can give it a try at no cost to see if it is an acceptable solution (in time-limited demo mode).
I use this program to give my iMac a third display. The +third display+ is an old PC laptop running Linux (Ubuntu).

Using iMac as external display, keyboard, mouse

I would like to use my iMac as an external display, keyboard, and mouse for my windows laptop. Is there a gizmo that will allow me to do this?
When I am using my work computer (windows laptop) at home, I prefer to have a full size display, keyboard and mouse and would like to see if I can use my iMac for this purpose.
21.5” iMac mid-2011

dwh wrote:
I would like to use my iMac as an external display, keyboard, and mouse for my windows laptop. Is there a gizmo that will allow me to do this?
When I am using my work computer (windows laptop) at home, I prefer to have a full size display, keyboard and mouse and would like to see if I can use my iMac for this purpose.
21.5” iMac mid-2011
No, not unless your Windows box has a Thunderbolt output port which it almost certainly does not. Please carefully read Apple's Target Display Mode 2011 Macs that extplains.

Hooking iMac to external display when LCD is broken

Per the Genious bar people at the Apple store, the LCD display on my iMac is broken. She told me I could hook it up to an external display and use it or I could get it fixed. I decided to hook it up to an external display, but from searching other forumns, it looks like it is only extending what is on my desktop and not mirroring it because all I see is the background of my desktop, no icons. Apparently, I need to go into System preferences and change something. How can I do this if nothing is showing on the iMac LCD display? Is there a shortcut key on the keybord or something?

CMD F1 was the keyboard shortcut....

New 27"iMac as external display to a pc?

HI,
If i plug in my pc and use the new 27"iMac as an external display, will there be any problem( like poor performance, laggy, ...etc)??
Thank you
or should I get the 30" apple monitor to plug in with my pc for better graphic/resolutions/performance?

No good answer yet, but see this thread:
http://discussions.apple.com/thread.jspa?threadID=2246912&tstart=0

HT3382 27" imac to external display vga or hdmi not detecting

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