External monitor, how to switch of internal monitor

With a second, external monitor, how do I switch of or darken the internal iMac monitor? In particular together with a beamer the screen light is disturbing. (however it works seemless great with a 720p beamer!)

Hello Joe.
System Preferences : Displays: Brightness bar is at the bottom.
This will allow you to darken the screen a bit, and is currently the only way I know that will allow you to do what you want.
For faster access you can select the "show displays in menu bar", which will allow you to access the Displays system preferences pane from the menubar at all times.

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Macbook Air 13" - How to switch off internal monitor?

While working with an external monitor (e.g. TV), I would like to switch off the internal monitor. Is there any function which helps me?

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 ?

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 ?

How to switch on MacBookPro monitor instantly after being in clamshell mode

So I use Skype Video a lot, and I use a Samsung external monitor.
The problem is that I have my MacBook in Clamshell mode nearly all the time, and at the moment, when I get a Skype video call, all I can do is open the screen on the MacBook and just have a black screen, (all video goes to the Samsung) so that when I want to look at the person I am talking to, I have to look away from the camera because the MacBook sits to the side of the Samsung.
My question is, how would I instantly switch on the MacBooks screen when receiving a video call and then have the Skype Video immediately under the camera?
Would this involve writing a script of some kind or does anyone know of any apps to download?

I'm not sure that there's a reasonable fix for you. However, I would suggest that you use your MBP in a dual monitor mode. It gives you a ton more desktop space, and would immediately solve your problem. I use Skype video that way (although I have an Apple LED monitor, so it has an iSight camera on it).

Mini + G5, 2 Macs 1 monitor - how to switch?

Hi - I have a lovely Dual-G5 Mac that I have used for a couple of years. Recently, I decided to provide a server for our two iBooks, one PC notebook, one PC tower, and the dual-G5, so as to simplify calendar sharing, backups, storage, and so on.
The right solution seems to be to put OS X Server on the G5 and migrate my G5 uses to a new Mac Mini since I don't REALLY need all that power. I'm planning to upgrade the drives on the server. Anyway the G5 has a nice Cinema monitor that is unnecessary for occasional server maintenance chores so I would like to get a switch so I can use that monitor on the mini and switch when i need the monitor on the server.
I have read a bunch about switching PC and Macs to one monitor but I wonder if the solution for two macs isn't easier. Does anyone have a preferred solution? I haven't been able to track down this sort of situation on the board so if someone can just point me to a relevant thread I am sure that will be fine.
Thanks,
Mike

If I understand correctly, you have two computers and 1 monitor and want to switch between the two at the same time?
Sounds like you need a KVM switch, Belkin makes something called the Switch2 for Mac Mini :
http://catalog.belkin.com/IWCatProductPage.process?Product_Id=273902
Cheers,
Awfers

How to switch to internal speakers IMAC 21.5

New to mac...I am unable to switch audio output back to internal speakers. Output is stuck on built in output and I am getting now sound what so ever. help

On the laptop lines, there's an issue where occasionally the headphone jack gets stuck in digital mode. So look at the headphone jack on your system, and if you see a red light coming from it, it's stuck in digital mode. Most of the time if you just plug something in a time or two it'll give it the kick in the pants it needs.
If there's no red light, and you're sure the output section of the sound preferences is set to the internal speakers, and you're sure the volume isn't all the way down or muted... Then you will probably need to take it to a local AASP or Apple store to get it looked at/fixed.

How to switch into an international keyboard?

How to switch into international keyboard while I am using the apple's wireless keyboard?
You know when u connect the wireless keyboard on ipad, the original keyboard on the ipad screen will disappear. at that time, how can i switch the english keyboard to an international keyboard. (by the way, in my ipad another keyboard is enabled.)
Thx a lot in advance.

i got my own answer
press the "command" then "space" button, then screen will show the international keyboard to choose. using the "space" to choose and confirm.
btw. the wireless keyboard is awesome!

I am a brand new mac user...trying to figure out how to switch from the Mac Pro screen to my external monitor. Appreciate any help.

am a brand new mac user...trying to figure out how to switch from the Mac Pro screen to my external monitor. Appreciate any help. thanks

In Finder... goto Help... In the Search Window type in Displays...
Lots of Useful Information there...
You may find these Links Useful too:
http://www.apple.com/support/mac101/
http://www.apple.com/support/macbookpro/
Cheers,

MacbookPro Mavericks OS external monitor - How?

I have MacbookPro unibody running Mavericks OS, I want to use my LG 32LE5900 TV as an external monitor - How?
I've tried HDMI direct from one to the other and bought a Mini Display port to HDMI too, but nothing works.
Do you have to change the mac resolution so it's not Retina?
Help please...

Hi twofourten!
Here is an article that can address your question for you:
OS X Mavericks: Use a portable Mac with an external display
http://support.apple.com/kb/PH13988
If you are still having issues with getting video information on your external display, you will want to use the following article for troubleshooting the issue:
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Thanks for using the Apple Support Communities!
Cheers,
Braden

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.

How to connect an external monitor to macbook pro. The monitor has no usb connector without a usb

How to connect an external monitor to macbook pro. The monitor has no usb connecter, only a port.

Most MacBook Pro models have a Mini DVI port, a Mini DisplayPort or a ThunderBolt port for connecting an external display. USB does not have enough bandwidth to support a responsive display connection.
What model MacBook Pro do you have, by year, CPU speed or MacBook Pro 3.1 designation?

I have an external camera, IceCam2, connected to my MacBook Air, but I cant switch to the camera when I try to use videocam on a websayt. How do I switch from internal to externl camera? In use is Adobe Flash Player, but I cant open that program, is the s

I have an external camera, IceCam2, connected to my MacBook Air, but I cant switch to the camera when I try to use videocam on a websayt. How do I switch from internal to externl camera? In use is Adobe Flash Player, but I cant open that program, is the s

I think the McAfee suite will do the trick when I pay them a one-time fee of $69 or $179 for a year for unlimited support.
Your call of course but IMO a waste of money. Please read this first:
There are many forms of ‘Malware’ that can affect a computer system, of which ‘a virus’ is but one type, ‘trojans’ another. Using the strict definition of a computer virus, no viruses that can attack OS X have so far been detected 'in the wild', i.e. in anything other than laboratory conditions. The same is not true of other forms of malware, such as Trojans. Whilst it is a fairly safe bet that your Mac has NOT been infected by a virus, it may have another security-related problem, but more likely a technical problem unrelated to any malware threat.
You may find this User Tip on Viruses, Trojan Detection and Removal, as well as general Internet Security and Privacy, useful:
https://discussions.apple.com/docs/DOC-2435
The User Tip (which you are welcome to print out and retain for future reference) seeks to offer guidance on the main security threats and how to avoid them.
More useful information can also be found here:
http://www.reedcorner.net/mmg/

HELP! How do I get rid of the volume noise that plays when I switch from internal speakers to external speakers?

How do I get rid of the volume noise that plays when I switch from internal speakers to external speakers? I'm trying to watch something on my TV through an HDMi cable (& apple adapter) and when I go to switch the sound control in preferences from internal speakers to SONY TV, the annoying "popping" noise occurs on my TV's speakers.

Go to Edit > Preferences > General > Import Settings and check the box for error correction, and then try one of the problem CDs again.

External monitor: how to make toolbar visible on both

I have an external monitor attached to my MacBook Pro and it is currently set up as the secondary monitor. Somehow I managed to get the resolution I wanted on both screens, i.e., greater on external without mirroring. But how do I view the toolbar/dock on both. My husband has done it on his, but doesn't know how he did. On the other hand, he must sleep his laptop to get the appropriate resolution on external.
How to make both things happen?
Thanks, Marion

RETRACTION My husband was confused or I was. Double toolbar only with same resolution on both screens.
Sorry.

Problems Usingt External VGA Monitor Through KVM Switch

I have my ThinkPad x201 connected to a KVM switch along with three other machines. The KVM is attached to a monitor with a resolution of 1920x1200.
Does the ThinkPad have to be rebooted with the KVM switch attached to the VGA port and with the switch set to the THnkPad?
I plug in the VGA connector with the KVM switch set to the ThinkPad. I then press fn-F7 and get four choses: Computer Only, Duplicate, Extend and Projector Only. I only want to display on the external monitor but Projector Only does not seem to be the correct choice although it does switch to the monitor it also puts up a message box saying the projector was not found. When I go to change the resolution I am offen limited to 1680 x 1050. Other times I can set it to 1900 x 1200.
When I switch the KVM to another machine I hear a tone from the ThinkPad that indicates something has changed. Then when I switch the KVM back to the ThinkPad I briefly see the display on the monitor at a lower resolution and then the monitor goes dark and the ThinkPad screen lights up.
I have also tried Extend mode with the output set to go only to the monitor. Again, if I switch the KVM away from the ThinkPad I hear a tone from the ThinkPad. When I switch the KVM back to the ThinkPad I again briefly see the display on the monitor at a lower resoulution and the the monitor goes blank and the ThinkPad's display lights up.
Is there a way around this behavior that will stop the ThinkPad from switching its output or can an external monitor only be used if it is directly connected to the ThinkPad?

I am also having the same problem with a ThinkPad T420s and a Trendnet TK-409 KVM. This KVM has worked for so many other laptops and desktops, I find it difficult to believe the ThinkPad would not work with a KVM - particularly this one. Any suggestions and help would be highly appreciated. Thank you.

External monitor, how to switch of internal monitor

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