Overheating in clamshell (display closed) mode with 24" LED Cinema

I have a new (1 month +) Macbook Pro 15" 2.4 GHz attached to a Apple LED Cinema Display....whenever I use the display in the "clamshell" mode using the "Higher Performance" option my system heats up dramatically. The fans never stop running and the machine never cools down. However, when I use the "Better Battery Life" option I never get the increase fan and the system does not heat up.
I have read a few articles that there are problems with the new NVIDIA 9400 cards - but does this pertain to my particular setup? Are there any known issues or solutions to this particular problem?

In "Better Performance" mode, you are using your MBP's more powerful 9600M GT graphics processor, and your machine runs considerably hotter than when you use the lower-powered 9400M GPU. The fans in your MBP run at all times; speeds range from 2000RPM at idle to 6000RPM flat out. Fan speed should ramp up at temperatures of 80-90° Celsius. If your machine gets to 105°C., it is in danger of overheating and will sleep to protect itself. At lower temperatures than that, it is not overheating. Use iStat Pro to monitor the temperature sensors in your MBP, along with many other aspects of its operation.

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MBP in closed clamshell (display closed) mode with an external display

I want to use my Macbook Pro Unibody in closed clamshell (display closed) mode with an external display
And I want to know if, the heat will damage the lcd of m macbookpro.
I want to buy a holder
http://twelvesouth.com/products/bookarc/
but i still have doubts about it the temperature and the Screen.
Thanks..

Apple says closed clamshell mode is a valid way to operate a Mac notebook, so that should be assurance enough. I don't know where the notion comes from that non-operating LCD screens can be damaged by heat. It would take a lot of heat to do damage. Way more than can be supplied by the computer itself.

Clamshell (display closed) mode

Hi,
I am using clamshell (display closed) mode from a while after a recommendation from someone in the discussion (many thanks!). It is great for my needs, but the thing is sometimes it is hard to start this mode. I find myself trying several times to make it works opening the macbook and closing it. Is there any special key or something to start it up for sure in the first shot?
i have a macbook pro + external aluminium keyboard + samsung syncmaster 2263 UN
thanks,
How to use your computer in closed clamshell (display closed) mode with an external display

Thanks Malcolm - I guess there isn't a solution to this problem unless some cooperate entity steps up to the plate and in this economy I don't see that happening. So, 5 to 7 years down the road someone will win a lawsuit and all of us consumers will get some type of rebate or other incentive that won't make up for the problem. Thanks for the links to the articles.....

Possible to disable closed clamshell (display closed) mode?

I would like to disable the closed clamshell (display closed) mode on my MBP, where you can run the computer with its lid closed if it's attached to an external monitor. I don't ever do this (I use the MBP screen as a second monitor), and this option causes my computer to randomly wake up if I turn off/on my office lights, or accidentally press a button on my usb keyboard or mouse.
I know there is no option to turn this off in the System Preferences, but is there a terminal hack that can do this?
Thanks!

If I understand you correctly, you don't close your display (because you use it as a second monitor) and sometimes you put the machine to sleep with its display open. But turning your office lights on or off wakes the computer from sleep (which certainly indicates an electrical problem in the office wiring or lighting, and one that can't be good for your computer). And of course hitting any key on the keyboard wakes the computer too, exactly as it's supposed to do. If I understand all this correctly, what if anything does it have to do with clamshell mode, and what particular aspect(s) of clamshell mode do you think you need to disable, and why?
While you're thinking that over, I recommend connecting your computer's AC adapter to a high-quality surge protector or an uninterruptible power supply that features power filtering.

How to make computer run in closed clamshell (display closed) mode without having an external display

i want to listen song closing my display how to do it any idea???????????

You can run a MacBook Pro with its display closed with the aid of any of several third-party hacks that prevent sleep, InsomniaX being one. If you put your closed and still-running Mac into a padded sleeve, backpack or carrying case that prevents it from ventilating itself, it will overheat and cook itself and/or cause a fire. Therefore, I strongly recommend against using any of the anti-sleep hacks, and if you do so, you do it at your own risk.
A MBP is not an iPod. If you want an iPod, get an iPod.

Using the MacPro with the LED cinema display

When using the MacPro with a LED cinema display (or any other external monitor in fact), is it possible to make it so that the main display (the screen showing the dock and menu at the top) is assigned to the external monitor?

Hello.
Yes, you should be able to do this through +System Preferences>Displays+.
Just click and drag the menu/dock (from within System Preferences) to the display you require.
Best
John

Clamshell Mode With 30" Apple Cinema HD Display

Hello,
How can I use my 17" MacBook Pro with my 30" Apple Cimema HD Display in clamshell mode (with lid closed). I can only use it in clamshell mode when the AC adapter is plugged in. When I try to wake the computer from battery, it turns on but then goes right back to sleep mode.
Thanks in advance,
Edwin

That's normal behaviour… clamshell mode will not work when your MBP is running without AC power.

Select Default iSight Cam with Dual LED Cinema Displays

Hello
I have two 27in LED Cinema Displays, both of which have iSight Cameras. When I try to facetime, by default, the right monitor camera turns on, but I want to use the left camera.
How do I select which camera on which monitor I want to use? Both monitors are connected via thunderbolt. I'm using OS X Mavericks.
Thanks!

You can try the old trick of first launching a camera app that you do NOT want to use - QuickTimeX > New Movie Recording perhaps - to have it engage the ONE display iSight camera. After you can see that your camera is engaged with the unwanted app, you can hide that app if desired. Then launch FaceTime and see if the other connected camera is accessible to FaceTime.
If FaceTime cannot then recognize the second Display iSight, check your System Information utility to see if your Hardware > USB > USB Device Tree recognizes both Display iSights. If the device tree recognizes only one Display iSight, your lowest cost workaround may be to connect a Mac-compatible webcam to one of your available USB ports so it is recognizable . The external camera may then be selectable in your FaceTime menu without the two-application trick.
Message was edited by: EZ Jim
Mac OSX 10.10.2

10.4.3 update destroys portrait lid closed mode with cinema display

The 10.4.3 update destroys the ability to use an external cinema display in closed lid mode. In particular using the rotate by 90 degrees option. Once set the external display goes nuts and can not be set back to landscape -- even in open lid mode. Zapping the PRam is not sufficient to reset the display.
Anyone solve this problem?

I'm interested in this issue too, as I intend to get an MBP but use it with an external screen and keyboard most of the time.
I'd also like to know about ventilation - where does the cooling air come from and go to? What parts need to be kept clear, and which bits can I have up against or close to a bookshelf or hutch or whatever?
Thanks in advance.
PS, I think the glossy screens look fantastic, but also think I'll go for matte since they are more practical.
G3 B&W Mac OS X (10.4.8)

External display only works with Macbook open?

I have an Acer AL2623W which works fine as an additional or main screen, but a second after you close the laptop the screen goes blank and it shows an 'input not supported' error. The Macbook stays on, it just doesn't drive the monitor alone. Re-open the Macbook and both work normally!

Hello Siôn Dafydd,
Welcome to the Apple Support Communities!
I understand that you are using an external display with your MacBook Pro and when you close the display on your MacBook Pro, the second display turns off. It sounds as though your MacBook Pro may not be connected to power while using with display closed. Please read over the attached article for information on using a second display in closed-clamshell mode.
How to use your Mac notebook computer in closed-clamshell (display closed) mode with an external display - Apple Support
Have a great day,
Joe

Closed mode glitch

For a couple of weeks I’ve been very successful in using my MacBook Pro in closed mode with an external display. Once the closed system was in operation I would put the MBP to sleep at night, turn off the monitor, and next day turn the monitor on, touch a key and connect to the Internet, all very smoothly.
But yesterday I rearranged my office, and closed mode has been very iffy ever since. The Internet rarely connects without my having to shut down or restart the MBP several times, and then, if I close the lid the connection cuts out. Trying to solve the problem, I’ve taken all the plugs out and reinserted them to no avail, gone through the connection start-up process from scratch, and even given the system 24 hours ‘settling down’ time in case it needed it to adjust to the new position in the room – no improvement.
This posting is written on the MBP with the display not connected. And it's fine. But the display worked with it before, so why not now? I must emphasize that it is only the Internet connection that causes problems when the display is connected - oh, and the occasional freezing of desktop files.
Any thoughts, please?

Hi Uxenden, you might want to move this post to the Macbook Pro forum; this is the Mac Pro forum. You will probably get better answers to your problem there.

Using the Macbook with new LED Apple Cinema Display? Not a beginner's Q...

Hi - I'm sort of cross-posting this because I'm not getting any answers in the Apple Cinema Display Forum, so here goes. So far, no one - not even a tech guy at a local Apple Reseller - has been able to help, so I've got my fingers crossed.
I just got a 24" Apple LED Cinema Display and am using it with my 13" Aluminum Unibody Macbook. What I do is dock the Macbook (with closed screen) when at home with the big display and just use that. I enlarge program windows and arrange the layout (in different spaces) to take advantage of the large screen and resolution. So far so good.
But I'm a student and take my macbook with me to class. When I open it up, all the program windows are set as they were on the larger screen, which means some are out of view or simply not well-adjusted for the smaller and lower resolution of the Macbook. I manually adjust these and work on the Macbook that way.
But when I return home in the evening, I have to adjust them again once I 'dock' the Macbook. Kind of a pain if I'm doing this twice a day.
What I'd like to know is: is there a setting or group of settings that would do this automatically for me? A program? An AppleScript? Surely someone out there has had the same issues and has found a fix, if such a thing exists. Or is it just a fact of nature one deals with when working on two screens?
To preclude one response: yes, I know I can mirror the displays when I open the Macbook along with the LED Cinema Display. But this simply mirrors them using the lower resolution and dimensions of the Macbook screen. And that kind of negates having the larger, Cinema Display.
So - any thoughts? Solutions? How do you guys manage with this?
Thanks,
Jeff

I don't really have a solution for you but wanted to link you to a discussion on this very topic that took place last month on MacInTouch.
http://www.macintouch.com/readerreports/helpplease/topic3939.html#d24sep2009
The conclusion seemed to be that it is not an OS issue, it's an application issue. There really was no good answer but some good insight into why the problem exists and why it may not be something Apple can fix.

Closed Mode?

A new 2.16 GHz Core Duo has just came into my hands, but I'm not sure what its limitations are, given the problems many of these units have had shedding heat.
I currently use a PowerBook G4 on my office desk with the lid closed and keyboard, mouse and monitor externally attached. Is this advisable with the MacBook Pro?
Any thoughts or experiences would be appreciated!

Yes it's fine to use in 'lid closed' mode:
With USB Keyboard & Mouse
http://docs.info.apple.com/article.html?artnum=86286
With Bluetooth Keyboard & Mouse
http://docs.info.apple.com/article.html?artnum=300562

Taget disk mode with lid closed?

I'd like to connect my uni-body MBP to my Mac Pro. Is it OK to go into Target Disc Mode, connect a firewire cable and closed the lid? I'd like to be able to place the MBP in my BookArc while I transfer/sync data this way. I'll have the power adapter connected to the MBP during use.
Thoughts?

If it works for you, the only downside I can think of is that the MBP can't cool itself as effectively when closed as it can when open. In what Apple calls "clamshell mode", with the display closed, the AC adapter and an external monitor, keyboard and mouse connected, the computer is fully operational except that its built-in display is turned off. In FW Target Disk Mode, the computer is much less fully operational, but its display is on (even though all it's showing is the bouncing FW logo). And Apple doesn't say anything anywhere, as far as I know, about closing the display in that mode, so it's not clear whether Apple considers it an acceptable, unacceptable or neutral thing to do.
Therefore, I would suggest doing it only when you're going to be on hand to check the MBP's external temperatures while large file transfers are taking place. If the case ever feels uncomfortably hot, open the display just to be safe. And if you ever do find it necessary to open it up under those circumstances, be doubly careful in the future about using the machine closed in FWTDM when the ambient air in your workspace is unusually warm, because that further impairs efficient cooling.

MBP in lid closed mode, will the display get to hot?

i run my MBP in lid closed mode all of the time, as i have a Cinema Display hooked up. i'm not too worried about the MBP overheating, but i was wondering about the display getting extra hot from the MBP when it's closed. i do have a radtech microfibre cloth on top of the keys as protection...
should i be concerned?
17" MacBook Pro Mac OS X (10.4.8)

I'm interested in this issue too, as I intend to get an MBP but use it with an external screen and keyboard most of the time.
I'd also like to know about ventilation - where does the cooling air come from and go to? What parts need to be kept clear, and which bits can I have up against or close to a bookshelf or hutch or whatever?
Thanks in advance.
PS, I think the glossy screens look fantastic, but also think I'll go for matte since they are more practical.
G3 B&W Mac OS X (10.4.8)

Overheating in clamshell (display closed) mode with 24" LED Cinema

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