External Display Shrinking- Now Barley Usable

Hi- I use a 19" MAG Inovision Display with my macbook. Ive noticed that when the MB's display is open, the picture on the external screen shrinks. Now, the MB display won't turn off and i'm editing a major FCP project. Help

Which adapter that you use, mini dvi to vga or mini dvi to dvi?
I got Samsung 19" with mini dvi to vga, and having the same problem with mirrored with macbook screen open.
But I use bluetooth mouse and keyboard and I mirrored with macbook lid closed, and I got my fullscreen back.
http://docs.info.apple.com/article.html?artnum=300562
or
http://docs.info.apple.com/article.html?artnum=86286
Try to unplug everything, restart your macbook and connect your mini dvi adapter and turn on your external screen.
Good Luck.
ps: pressing F7 back and forth will give you access to expanded/mirrored screen.

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Connecting an external display and now I have 5 displays

I have two Macbook Pros running OS X Mavericks. They are both connected to an external display. One works fine but the other one is not working correctly. When I try to connect to my external display I see 5 displays. When I deselect the Mirror Displays button I have to mess around with the order to find my Macbook display and my ViewSonic display so they can be side by side. What are these other virtual displays? And how do I disable them?

According to this:
http://docs.info.apple.com/article.html?artnum=86286
you need to keep the laptop plugged into AC power when operating with the lid closed.

Choosing External Display

Hi,
I'm new here and hope you will forgive me for posting a question that I am sure has been discussed before. I'm in a real hurry though...
I have an iBook G4 1.2Mhz, 12", running OS 10.3.9
Since I started with photography as a serious hobby, the display has been a major frustration. It is just way too small, difficult to edit pictures on it. So I would love a larger external display, and now I was asked to wish for a specific one (as a GIFT!:), but real quickly! Problem is, I need an LCD-display, don't have space for a CRT.
Somebody told me that my only option is getting a new computer! That can't be the only option... Is there a way for me to, safely and successfully, use e.g. a 20.1" NEC widescreen display? Or, is my only option going for a 15" NEC with the same resolution as the built in display (1024 x 768)? It is of course important that the quality of what it displays, is good, since we're talking image editing.
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Summer Greetings,
PP
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I thought I had checked the info carefuly enough before I got my wife a ViewSonic VX912 TFT monitor, but noooooo. I now realize that I had to use the hack to get higher resolutions.
My question is, how did you get the 1280 x 1024 to fill the screen? I had it @ 1280 x 1024, but the image was centered on the monitor with lots of black around it. And actually now I cannot even pick the 1280 x 1024. I can only go to 1152 x 870...no idea why though.
Any help would be appreciated. My wife uses the computer to work on her doctorate and the text is so fuzzy. I feel bad as it was me that said it would help her eyes getting this monitor :/
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How can I get my LT monitor to sleep when I have an external display connected, If I close the lid both displays go out

How can I get my LT display to sleep when I am using another external display, right now if I close the lid both of them go to sleep?

This is called Clamshell mode, to operate with the lid closed you need:
Requirements for closed display mode:
Power adapter
External keyboard, mouse, or trackpad
External display
Here are the details:
http://support.apple.com/kb/ht3131
Regards,
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Upgraded to Yosemite and now external display is not detected

I just upgraded to Yosemite on my 2009 MacBook Pro and now it won't detect the external display. It worked perfectly before the upgrade. I have the display connected by USB. Is there anything that can be done about this? I really need that external display for work and am really regretting downloading Yosemite.

Exactly the same issue. My Eizo Coloredge was working fine after installation until (just now) I dared to do a restart...
I have tried various different displays and connections over the past 20 minutes and have restarted my mac (late 2013 MBP 15' Retina) and connected / disconnected multiple times. Neither my Coloredge via Thunderbolt or HDMI (no signal detected) is recognised, nor a Samsung LCD via HDMI.
SO frustrating that something this basic should now be 'broken' when it was fine under Mavericks (and earlier OS). Come on Apple, let's get a fix. Plenty of people rely on external monitors.
Sigh.

HT203254 I bought my MacBook Pro since 2008. Now I live in Thailand, and my MacBook had the second symptom (No video on the computer screen (or external display) even though the computer is on). How can I get guarantee in Bangkok?

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"That's why I'm wondering whether they still can fix it as lifetime guaranty or not?"
No, not lifetime.
According to the referencd article:
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I copied my iTunes folder to an external HD and now I cannot delete it. When I try to move it to the trash it displays: The item “iTunes” can’t be moved to the Trash because it can’t be deleted.

Close iTunes. Click the icon to start it, then press and hold down the left shift key. Keep holding until asked to choose or create a library. Choose the iTunes folder on your external drive. That should bring back all your playlists, ratings, play counts etc. You may have to settle for removing and reloading the media onto the device again. That's not too bad, but what you don't want to have happen is your apps being removed and reloaded as then you can lose settings and data. If that looks likely backup and then restore the device rather than sync it.
If for some reason rebuilding the library the way you did has moved files around then the restored library may have trouble finding things. If so post back and I'll explain what to do...
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Macbook Pro Retina External Display Audio

I am looking to get a Macbook Pro Retina 13" and I want to connect an external monitor to use as my primary display when at my desk. How would I get audio to work when my Macbook is closed and I am just using the external display. (Using DVI-D cable)

I have a new rMBP 15 and I am having a major problem with hooking up to external projection systems. Otherwise, it's a fantastic computer for running Windows (required for work) and Mac, my preference.
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http://www.amazon.com/gp/product/B005AT2KTK/ref=oh_details_o00_s00_i00?ie=UTF8&p sc=1
However, now that I have higher resolution the image is blurry much like the OP but even worse and not usable. I am going to experiment with various settings I have found on other posts and forums, but most are specific to a fixed setup, whereas I need plug&play and don't have the time to fiddle with settings before each presentation.
My fear is that I may have to abandon the rMBP and revert to my old clunker DELL, due only to this one major issue issue.

How can I use an external display with my MBP lid closed and disconnected to power?

I know that I can use an external display when my MBP lid is closed and it is connected to power. I was wondering why it does not work when the power cable is removed.
I only use an external display when I am at home so my MBP acts like a Mac Pro or Mac Mini in that way, but it is not good to leave the battery charging constantly on a MBP so I want to disconnect the power and use external display and have the lid closed. Is this possible or do I have to leave my lid open when running on battery power?

I'm plugged into my wall socket at least 90% of the time - probably more. I always make sure that I take my MBP off mains about once every two weeks and let it run down to about 30-40% and then plug it back up. This keeps the ions flowing and the battery healthy. My MBP will be one year old on March 20, 2013, and my battery health is still at 99%. I run in clamshell mode most of the time now - since I bought a 27" Apple Thunderbolt Display. Only occasionally am I off mains - and then because I'm exercising my battery, usually.
Don't worry about running of mains most of the time - just be sure and unplug about once every two weeks (or twice a month) and let your battery dip to the 30-40% mark and you'll be fine.
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How can I disable the internal display on my MacBook Pro with connected external display?

I used this metod with the MagSafe power cable connected (see http://osxdaily.com/2012/06/15/yet-another-way-to-turn-off-internal-lcd-display- of-macbook-pro-with-lid-open/).
Open System Preferences and click “Mission Control”, then click on “Hot Corners”
Select a hot corner and pull down the menu to select “Put Display to Sleep”
Now connect the external display to the Mac and move the cursor to the newly created sleep corner to turn off the internal display
Close the MacBook lid and wait a few seconds before opening the lid again, the internal display should stay off while the external display will be powered on
This worked great under Mac OS X 10.7.4, but after the last update to 10.7.5 it doesn’t work more. The built-in display turns off really, but a few seconds after opening the lid it lights up again. Do you have any suggestions? Dimming the brightness or clamshell mode is not very useful.
MacBook Pro 13-inch,
2,7 GHz Intel Core i7,
Mac OS X Lion 10.7.5 (11G56)
Thanks!

I have the same problem: not able to work with my external display mirroring the internal one - while shutting the internal display off.
I believe there is an issue with Mac OS X Lion 7.5 that Apple needs to solve, since apparently it does not happen with this version of the OS only...
https://discussions.apple.com/thread/4315808?start=45&tstart=0
Or any other way to solve it?
Mac Book Air, 13-inch Mid 2011
Mac OS X Lion 10.7.5 11G63
Thank you!

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I've disabled realtek (fixed cracking speakers) tried a completely new cord set up from micro hdmi to dvi...nothing works. When i drag the browser window back to the laptop screen, it works fine.
Ok, 5 min follow up: it seems im now having the similar issue with streaming video on my laptop screen....sound streams fine, the video seems to shake back and forth very quickly, runs, then shakes again...seems to only happen intermittenltly on the laptop...but display shows real lag and shake.
Solved!
Go to Solution.

Have you tried changing the screen resolution on the Yoga to something lower than what it is set on? A 1080i screen has a resolution of 1,920 × 1,080, my Yoga 3 Pro has a default resolution of 3200 x 1800. I have not tried connecting my Y3P to the TV yet, but the conversion could be causing an issue.
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My external display does not work

i've got a macbook pro and a Medion extra display.
i bought a adapter and all, It worked. but now after I unplugged it for teh 5th time or so, the mac stopped reacting on the display and conversely.
can somebody help? thanks

Hello Kaloka Kaloka,
Thanks for using Apple Support Communities.
From what I understand you're unable to connect to a specific external display, but your TV does function as an external display. Please follow the relevant instructions in the following article to troubleshoot this issue:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573
Take care,
Alex H.

Mid 2010 Macbook Pro sleep and external display problem

I recently upgraded to the new 2010 15 inch core i7 Macbook Pro. The problem i have is that it will not detect an external display (23inch Cinema) after waking from sleep. This happens after using the display to extend the desktop and also when using the Macbook in closed mode.
I've managed to get it to detect the display only after either restarting the Macbook completely or by going into energy saver and switching to dedicated graphics then going back to detect display.
It seems that when on integrated graphics it doesn't register that an external display is connected. If i leave a program open and running that causes the dedicated graphics to kick in then it works ok. If i close all programs, shut the macbook pros lid, computer sleeps and external display shuts off. If i click the mouse to wake with lid closed, apple logo lights, machine starts up few seconds later macbook returns to sleep. If i open the screen the machine wakes as normal but the external monitor doesn't.
Any help is much appreciated as its starting to frustrate me now...
Many thanks
oh and im running OSX 10.6.3

I thought it was intermittent to begin with until i started looking into it. By leaving programs open, like aperture, before i put the machine to sleep it appears to wake the external monitor up without a problem. If i shut all programs or leave basic things open like safari and mail which don't require the dedicated graphics, then upon wake it wont register an external screen is connected.
Manually detecting displays in settings doesn't work.
Disconnecting and reconnecting mini display port doesn't work.
Turning off power to cinema display and powering back up doesn't work.
To get the display going again its either 1) turn off macbook pro and re-boot or 2) re-start the machine then the display is automatically recognised. Or 3) launch a programme that kicks in dedicated graphics then manually go in and detect displays again..... like magic the display then springs to life.
No ideas anyone??

How to restore display on MacBook Pro to original settings after faulty external display connection

Rookie question, 2009 MacBook Pro. We bought a dvi-VGA adapter to connect to an external display. Got a picture on the external monitor but very poor resolution. Meanwhile the display on the MacBook Pro re-set itself and we were not able to restore it to normal even after we disconnected the external monitor. We now have our MacBook Pro with messed up resolution and display, AND no external display. How do we get the MacBook Pro back to its default display settings? Any help greatly appreciated!

this is from another discussion:
jk10003
Re: MacBook doesn't sleep when closing lid with external monitor attached with Lion Oct 14, 2011 7:01 PM (in response to admgtz)
I would like to offer this solution. I have a MacBook Pro with an external monitor, and, for a year and a half both displays slept when I closed the MBPS. This behavior stopped when I installed Lion. They would sleep when I removed the power cord, but what a pain that would be. The command "pmset -g assertions" gave no indication of which process ought be preventing sleep.
I contacted Apple support, and after some searching, the guy working with me found this thread, which was flagged as an Apple-approved solution:
https://discussions.apple.com/thread/3190417?start=165&tstart=0
This is the important part:
Correct AnswerRe: How do I tell Lion to disable the LCD screen even when the lid is open?
Aug 31, 2011 9:56 AM (in response to Bob_viking)
Here's the command to make your laptop behave like it did Pre-Lion (courtesy of my friend):
sudo nvram boot-args="iog=0x0"
Works perfectly for me. If it screws up your system, just zap the PRAM next boot (cmd-opt-p-r) and you'll be back to the default Lion state. Or if you can still get into terminal, this command will get you back to Lion's default state as well:
sudo nvram -d boot-args
Enjoy!
One snag was that I had to run it with the external monitor disabled, but it worked great!

Can I use External Display on a Window 7 64bit 13" Macbook Pro Early 2010

I have a 23" LED LG Monitor , It has VGA Cable , RCA Cable and HDMI Plug (but no wire). I am asking now if whether I should need a VGA Cable or a RCA Cable or a HDMI cable. I know there's the Apple Mini DVI to VGA Adapter. Should I get that? And does window 7 64bit professional bootcamp support any external display? If not , is there another way to get it working.

You should be able to hook it right up just like if it was a "normal" Windows Laptop.
Windows would be the one to set it up with. Make sure you've updated Boot Camp.
You probably should use an "Apple Mini Display" port -to- HDMI adapter as that should give you more display options, etc. (I'm not sure how high the 13" can go on resolutions, HDMI or VGA may not matter?)
You MAY have to use a separate sound cable between the laptop and monitor as some HDMI -to- (whatever) adapters don't carry the sound signal via an "adapter".
The next choice would be a Mini Display port to VGA adapter.
You may want to also ask this question in the "Computing Hardware/MacBook Pro" area as they may have more info?
Hope this helps...

External Display Shrinking- Now Barley Usable

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