MBP 15" 2007 internal monitor off, recognizes only external monitor

My MBP 15" 2.2 2007 2 MB RAM NVIDIA GeForce 8600 internal monitor has no video after startup. If I connect my Apple Cinema Display to it, the video of the main monitor is on it, and the internal screen stays off. If I hit the "Detect displays" switch, nothing happens. I have tried the following: reset PRAM and NVRAM, reset SMC, repair permissions using Mac OS X Lion Disk Utilities, and Onyx software as well. I have also formatted the MBP and reinstalled MAc OS, and the problem persists. Can anybody help? Many thanks in advance

The max for single-link DVI (which is what comes out of the Mini DisplayPort-to-DVI Adapter) is 2.75 million pixels at 60 Hz, so it can drive a 1920×1200 display, for example.
Your old MBP directly output dual-link DVI, which goes up to 4 million pixels at 60 Hz (2560×1600).
Obviously, you're also limited by the native resolution of the external display.

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My mac won't recognize an external monitor. The screen Goes Blue Once, then goes blue again and the second monitor just turns off. I am using an HDMI adapter to a visio TV. I also have my xbox on the tv. Can anyone Help??

My mac won't recognize an external monitor. The screen Goes Blue Once, then goes blue again and the second monitor just turns off. I am using an HDMI adapter to a visio TV. I also have my xbox on the tv. Can anyone Help??

Lol, figured out the first part. Just for those who may be searching, when you click on the Display Preferences, and click on the arraingment tab... it not only shows where your two screens will be displayed, but the WHITE BAR at the top of one screen is the dock/toolbar. Click and hold to grab this and just slide it over to the screen you'd like it to be on.
You have to release it IN the screen box, not on top of it... and it should pop right over to the new (or old) screen. At any rate, you can put the dock on either (or any) screen that you prefer.
I am thinking of ordering more of these. Lol. 3 monitor setup seems like it would be crazy good.
Still looking for the answer to keeping the new 16" screen on the right without switching between screen #s with that... not expose... Lion feature.
Thanks. Hope my other question has an answer out here.
Paul H

I downloaded the new osx mavericks system, and it would not recognize my external monitor. I have a macbook pro.

Any ideas on how to get my new osx mavericks that i just downloaded to recognize my external monitor?

Hello maggiefromloudon,
Thanks for using Apple Support Communities.
For more information on this, take a look at:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Best of luck,
Mario

Lenovo B570 i5 3000HD only external monitor question

Hi,
I´m considering to buy a B570, 2410M, 3000HD graphics only ( no dedicated graphics card ).
I will use the B570 as a desktop replacement, connecting an external monitor via the VGA-in, and will not use the laptop-screen at all.
If I connect an external monitor via the VGA-in, configure this as the only monitor - and unplug the external monitor, and then plug the VGA again - will the B570 remember the settings ? Will the external monitor be ON or OFF ? Do I have to reconfigure the external monitor set-up again to make it work again ?
What should happen:
Unplug - Laptop screen turns on,
Plug again: Laptop screen truns off, external monitor turns on.
Thanks.

as i know, you won't need to re-configure external monitor settings.

Does OSX Mountain Lion recognize an external monitor through a USB Port?

I am thinking of buying an external monitor soon and I dont know if my Mac Mini 2011 will recognize the external monitor through a USB port. Is their a software that I would have to download? It will be going throught the port with this http://www.walmart.com/ip/SIIG-USB-2.0-to-VGA/10884548 or even this http://www.directron.com/k33928us.html?gsear=1. Thanks

That is to complicated, requires special drivers and most likely will produce a poor quality siginal to the monitor.
For 24" or smaller monitors your best bet it to buy a monitor with HDMI and/or DVI input and use a good HDMI cable between the Mac Mini and Monitor, or optionally the supplied HDMI to DVI Adapter and a DVI-D cable.
For larger Monitors you will want one with a DVI or Display Port input and use a Mini DisplayPort to DVI Adapter and a DVI-D cable or a Mini DisplayPort to Display Port cable.

How to switch off internal macbook screen when using external monitor(s)

as far as i observed, adding external displays ( running different screens on them, not mirroring) to a macbook pro increases the gpu workload and with that comes temperature rise in the laptop and increase in ventilator noise - and probably increased hardware aging and risk of component faillure due to high temperature inside the laptop.
simply try connecting two external 27" screens and open some flash video on both of them. then run a temperature monitoring software and watch temps rise, compared to running same flash videos / demanding tasks only on one connected external screen or only on the laptop screen with no external monitor connected.
especially in mavericks, due to its increased background routines, such a set-up appears ever the more taxing, then again who does not love apple`s nice adds showing laptops with two 27” screens connected to it and the workspace vision they invoke....
i have seen temps around 100° to 102° celsius on a 13" macbook pro 2012 edition, which i would expect is territory where the cpu / gpu temp safety switches will trigger system shutdown any time soon ( hardware status before verified as fully in order by apple service and default osx installation)
imagine your anti-virus software starting some realtime content screening while runnign some demanding tasks already and the system shuts down easily (all such situation observed in reality)
(would be interesting to see how a retina display macbook fares with 2 external monitors running demanding tasks, considering the retina display already increased taxing for the gpu - any experience from users of such a setup would be very much appreciated as it will provide critical purchase decision intelligence for all of us envisioning a retina-book and two big screens adoring our desks...)
turning down the macbook`s built-in screen`s backlight may reduce power consumption but i have not seen any evidence that it switches off the gpu-to-screen feed and respective gpu load - it certainly did not prevent gpu, cpu, board, etc temps to rise to borderline levels.
so the key question here is, how to switch off the macbook pro`s built-in screen in order to avoid gpu cycles being wasted on that screen ( and the resulting heat developments) when working with big external screen(s) connected to the laptop ?

this thread talks about running several monitors as advertised by apple and running demanding task on them.
with the lid open, the keyboard offers a very efficiant heat escape vector, which is blocked when the lid is closed - this is a basic and commonsense insulation effect. this thread also mentions the use of temperature monitoring software and thus a repeatable test setup. the temps recorded were also mentioned. they rose when the lid was closed, the running task remaining unchanged. as far as i could track down the cpus in discussion will shut down around the 105 degree celsius range. i observed system shut downs when the system approached 103° celsius. not to mention that the fans will run loud well before that.
again this is on hardware checked and ok-ed by apple service.
the question still welcoming an expert answer: is there any way to switch off the built-in macbook monitor while the lid is open ?

New iMac won't recognize my external monitor.

I just upgraded my workplace computer to a late-2012 iMac (with the thin edges) from the previous older model.
I have an external monitor that I use as a secondary screen - a Samsung SyncMaster BX2440 - that worked great on my older machine using the DVI adapter.
When I plug the same adapter into my newer machine, it won't recongize the external monitor.
I tried resetting the PRAM, but no dice.
Is this a Thunderbolt issue, and if so, how easy is it to resolve? Do I just need to get a newer DVI adapter?

Loner: I looked at that and it only shows the main iMac display. Doesn't show the other device.
The model I'm using is a Thunderbolt machine (has the lightning bolt arrow icon). The previous machine was a DisplayPort model.
The adapter is the Apple-issued DVI adapter, but I'm guessing that even though TB and DP use the same physical plug interface, the adapters are not compatible?
(The adapter has the standard monitor icons on it - box with vertical lines on either side).

Mini DisplayPort to VGA isn't working. It won't recognize any external monitor. It worked just fine with my older spring 2011 MacBook Pro running Snow Leopard, but now with my brand new 2012 MacBook Pro running Mountain Lion, it no longer works

I just bought a new MacBook Pro this summer and was all excited. But I'm very frustrated right now because I can't connect to any external monitors through VGA. My thunderbolt (DisplayPort Mini) to HDMI works just fine, but when I try with my other connector to go from Thunderbolt (DisplayPort Mini) to VGA, Nothing works. my screen goes blue and changes size like it recognized something but nothing is ever detected on the external moniter or projector. I'm not sure what is wrong but it's very frustrating. I'm just very depressed that it worked just fine with my 2-year-old MacBook Pro but isn't working now. I'm running OS X 10.8.2. I just upgraded yesterday from 10.8.1 but that upgrade did nothing to fix my problem. Can anyone help? Thanks

I am haveing this exact same issue. I have plugging in 3 monitors and tried two different VGA to mini displayport and nothing is working. I recently bought a Acer monitor and it work for an hour and now it back to doing the same thing.
When I plug the VGA adapter in to the monitor the monitor think its not connected to a computer then when disconnecting the VGA adapter the monitor thinks it is connected to a computer.
NEED SOME HELP!!! at the point of all my hair is pulled out.
^^^
that is the same problem i am having! if anyone can help that would be great i'm losing my mind over here

Installing from Tiger to Snow Leopard using only external monitor?

Backstory: I currently have a mac book pro which i procured from a friend after he dropped it and broke the screen. He promptly went to the apple store and bought a new one and had them swap the hard drives. After hearing this I told him he could most likely still use the old one with an external monitor even if the screen was broken. I hooked up an external monitor myself and what do you know the Tiger set up screen came up and i proceeded to set up this mac book pro for use.
The issue:
I now wish to upgrade this laptop to snow leopard or to leopard than snow leopard. The problem being when I insert the Snow Leopard disc into the drive and click install os when the computer reboots and reaches the set up screen it uses the second monitor as an extended desktop, not as a duplicate.
This means i cannot see the install screens and therefore cannot upgrade.
The F7 shortcut seems to do nothing which is sad because it worked in the initial setup of tiger.
Does anyone know a workaround so I can duplicate the screens? Why would this not be the default behavior? What is the point of extending the desktop DURING setup?
Also it seems some people are reporting problems with external monitors not being properly recognized once 10.6.3 is installed. Is there certain external monitors which avoid this?

You could boot the laptop in target mode and install the OS from another computer onto the laptop drive.

Wireless logging on and off, noise on external monitor

Hi
I got a new W510 3 weeks ago and allready from day 1 there was some problems.
The wireless would say it had internet but when you opened explorer it couldnt open the pages. Then after a windows repair network for the 3rd time it seemed to work...
But now it works sometime but when i need to load a new page it just hangs, and need to wait 20 sec. until it reacts and opens the site. I have a 5 year old laptop which doesnt hang on the same router... I have allready turned off everything about battery saving stuff for the wireless card. What else can i do?
Then when i attach the computer to a external 21,5" Samsung LED monitor there is huge amount of noise. And when i attach the monitor to my old laptop there isnt any. I have tried to use ground for the power supply and didnt work. The problem is both at battery and when i have the power supply plugged in. The monitor have VGA plug so there are not any converters...
What should i do?

Hi
I got a new W510 3 weeks ago and allready from day 1 there was some problems.
The wireless would say it had internet but when you opened explorer it couldnt open the pages. Then after a windows repair network for the 3rd time it seemed to work...
But now it works sometime but when i need to load a new page it just hangs, and need to wait 20 sec. until it reacts and opens the site. I have a 5 year old laptop which doesnt hang on the same router... I have allready turned off everything about battery saving stuff for the wireless card. What else can i do?
Then when i attach the computer to a external 21,5" Samsung LED monitor there is huge amount of noise. And when i attach the monitor to my old laptop there isnt any. I have tried to use ground for the power supply and didnt work. The problem is both at battery and when i have the power supply plugged in. The monitor have VGA plug so there are not any converters...
What should i do?

MBP - late 2007 - external monitor stopped working

I have a late 2007 MBP pro, 17" monitor. I have been using a 30" dell monitor (3007WFP) as an external monitor for home use. It has been working fine for 4 years. Last night the monitor stopped waking up from sleep and now only gives a blank screen even after reboots. The monitor seems ok ( it goes through the self-test routine normally), and I have tried different cables with no success.
I have tried resetting the SMC and the PRAM on the MBP but that too did not fix it.
The monitor has an orange LED light on the power button indicating the power is connected (though it is not blue which would indicate it is receiving a signal). It also recognizes that is has a DVI hook-up (or else it would repeat the self-test).
The MBP detects the external monitor (or at least seems to - it is listed as a display and allows me to choose a resolution, although obviously that does nothing since the monitor is completely black). I haven't yet been able to get another laptop or monitor to test the other components to make sure the monitor is ok.
Does anyone have any other suggestions?
Thank you

Your on the right track when you said "I haven't yet been able to get another laptop or monitor to test the other components to make sure the monitor is ok.". Also include a different cable in that scenario, if you can.
Ciao.

MBP display won't stay off, wakes from sleep

I have a newish 15" MBP, 1680 display, hooked up to a Dell external monitor when it's at home. When I go to bed I cut power to the display via control-shift-eject, but generally don't put the computer to sleep overnight.
With this new machine, after it's been running for a while (as little as a day, or as long as a couple weeks), the displays will come on again in the night. Once this happens, the displays won't stay off for longer than about five seconds. If I then put the machine to sleep, it'll wake itself up minutes or hours later (generally not long enough to miss a Time Machine interval). The only cure is rebooting.
I tried an SMC reset, but that fix only lasted about as long as any other reboot.
I've since tried systematically removing every peripheral (a USB hub, the external display, any directly-connected iOS devices) and testing display-off after each; no change. I've turned off my Bluetooth keyboard and mouse, then disabled Bluetooth on the computer, turned off wifi, quit every menu extra (jitouch, Viscosity, Dropbox, Pastebot, Fastscripts, Transmit, Teleport), and quit every running application. The problem remains repeatable after every step.
It's repeatable at the moment — any suggestions for other things to try, preferably short of the reboot which temporarily masks the problem? I'm a little concerned that it's going to manifest at some point while I have the laptop sitting in a bag, which will then cook itself.
I'm on 10.6.4 now, the problem started on 10.6.3.
Thanks.

Try checking the system logs in Applications/Utilities/Console.app for clues. The entries carry time stamps. Usually a wake event will leave some trace. By matching time stamps to the time of occurrence you may find the culprit.

Internal display off when lid opened?

Hey guys!
Just installed Lion and one thing I immidiately noticed is the way Lion handles internal display when external display is plugged in. I use a big 24-inch display with my early 2011 MacBook Pro. I like to open the lid for better WiFi connection but dont really like the display to turn on. In Lion, it automatically does so I have two displays.
Is it possible to open the lid but still keep the internal display off and only the external one on?
Thanx!

Support are quoting Apple's engineers as saying it is "expected behaviour" under Lion for the MBP's internal display to reactivate upon opening the lid, even if you want to use only your external display. A new version of the clamshell mode-related knowledgebase article (replacing HT3131) is due shortly confirming this.
This is despite:
- the obvious temperature-related benefits that were achievable (under Snow Leopard) by opening your MBP lid whilst continuing to output solely to, say, a 27" cinema display
- the wifi connectivity benefits of having the lid open
- the waste of energy and inefficient use of graphics processing power in needlessly running two active screens (ie if running your MBP in clamshell mode would otherwise make it too hot and/or noisy or you need it open for wifi)
- the negative longer-term impact on the battery and other components from running the MBP any hotter than it needs to be.
If you would like to have the previous behaviour restored, please lobby Apple to change how Lion handles clamshell mode. Options available to them include changing Lion's expected behaviour or adding a user-selectable option within System Preferences.
Feedback can be submitted here:
http://www.apple.com/feedback/macosx.html

Blank internal screen when waking with ext monitor connected

I have a 2011 MacBook pro that is connected to a Dell U2410 24" monitor all the time via a DVI adapter.
Most of the time this monitor is switched to a different input - the display port which is connected to my PC.
On the MBP I have display mirrorig enabled.
Usually, when I wake the MBP, I guess it dettect the external monitor (even when that input isnt selected for display) and leaves its own screen blank - which is really annoying as the only way I have found to get the internal display to come alive is diconnect the extermnal display, or switch inputs on my dell monitor so I can see the MBP display and select Detect Display from the screen utility in the system bar.
Is there any setting anyone know of to stop this behaviour and make the MBP allways enable the internal display if the lid is open rather than purely relying upon the external connector when waking to decide what to do?
Just really annoying.
BTW - for all those people who have been complaining about dead MBPs when you wake them and have an external monitor connected - are you sure this isnt what is happening to you? At first I though my MBP had crashed as well - but in fact it just hadnt switched its internal display back on.

Problem solved, with some help (here and here).
Basically, the solution was the installation of a new intel HD 4600 Graphics driver directly from intel.

Windows 8 Bootcamp Does Not Recognize External Monitor

So, my Bootcamp of Windows 8 does not recognize my external monitor when I try to plug it in. I have read that the startup must recognize the monitor during the boot process. However, I have already done this and my external monitor remains in sleep mode. My drivers are all up to date with this bootcamp and I work on programming a lot so I need a solution for this issue because going back and forth between windows of the internet and my code is not ideal for me and wastes too much time. The external monitor works when I run my OS X, just not on Windows 8. If anyone could point me in the direction of how to solve this issue, it would be greatfully appreciated.

They're downloadable. But I'm going to create a system restore point in case something happens.
The below discussion had a similar issue but with Windows 7
https://discussions.apple.com/message/12358950#12358950
http://www.nvidia.com/Download/index.aspx?lang=en-us

MBP 15" 2007 internal monitor off, recognizes only external monitor

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