Clamshell mode vs. open

Hi everyone,
Does someone know which mode is better/healthier, for my macbook pro? Clamshell mode or open mode? Both with an external display.
Greets,
jan

no

Similar Messages

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    gpuswitch            2
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  • MacBook late 2008 - stuck in clamshell mode

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    I had a similar issue where my Late 2008 Macbook would get stuck in closed clamshell mode after connecting and disconnecting an external display, or just closing the lid.  Only rebooting the machine would bring back internal video. 
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  • MacBook Pro Retina 15" mid-2012 won't boot in clamshell mode with an external display attached

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  • HT3131 Will running the Macbook Pro 2011 in clamshell mode affect heat dissipation at all?

    I'm worried about the heat not being able to escape when the laptop is closed.

    I have used my new mid-2012 MBP in clamshell mode and monitored the temperatures and they were no different than when the lid was open, so it appears that the cooling system is unaffected. Very little heat dissipates upwards through the keyboard/upper case anyway, the heat is directed through the rear and underside of the case.

  • How to keep display on Macbook Pro instead of Clamshell Mode

    I have an extended desktop through a Mini-Display Port-to-VGA connection from my Macbook Pro (OSX Mountain Lion) to an external monitor. I have the Macbook Pro screen set up as the "main screen" (with the display bar on top). But everytime I close my macbook pro, the computer goes into clamshell mode and sets the extended desktop as my "main screen" which switches my display bar. Is there anyway to tell OSX ML to always keep the Macbook Pro screen as the default and not go into clamshell mode?
    This also creates a problem when I want to physically close my computer to allow to sleep, but instead goes into clamshell mode and extends the desktop to my external display. Any ideas?

    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.
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    https://discussions.apple.com/thread/3190417?start=165&tstart=0
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    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)
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    Enjoy!
    One snag was that I had to run it with the external monitor disabled, but it worked great!

  • HT3131 Why doesn't Apple mention using the Display control panel's "Arrange" feature to move the menu from the Macbook's display to the EXTERNAL display? THAT'S the real answer to make Clamshell mode work, but it's not mentioned in any Apple documentation

    After a recent OS update, Clamshell mode quit working. I couldn't find any Apple documentation
    that would help. So many people were stabbing around in the dark, until I finally found the following information
    that is lacking from any Apple documentation that I've been able to find.
    Here's what I found to be the most helpful:
    Forcing a MacBook to use the External Monitor:
    I tried about everything: Rebooting, switching off completely, removing and inserting the Thunderbolt->HDMI adapter etc.
    The only thing that finally worked was the following:
    1. Take it out of the dock and connect to Power and HDMI to the TV.
    Shut down the Mac. Turn it on and close the lid. It will now boot up on the external screen.
    Log onto the Mac, and put it in sleep mode (Option-Command-Eject).
    Put it back into the dock and wake it up with the spacebar.
    It should be OK now... until the next update...
    Note: One indication that you’re going to have extreme trouble with this is when (occasionally and without reason) the Mirroring Options icon shows up on the top icon bar.
    Other useful commands:
    “Command + F1” puts PC in Two-Screen MIRROR mode.
    If it’s REALLY being stubborn, do the following (Clamshell Must be open
    to see the arrangement tab.):
    In System Preferences > Display on the MacBook screen there should be an Arrangement tab when you have the MacBook hooked up to the TV and both screens working. When you click the Arrangement tab do you see two monitors side by side? One of them will have a Menu Bar at the top. Just click on the Menu Bar and drag it to the second monitor (Yes, I know, it’s hard to grab ahold of it...) That will make your EXTERNAL monitor your main screen.
    You can now use your MacBook in Clamshell Mode with a wired or Bluetooth keyboard and mouse.  http://support.apple.com/kb/HT3131 When you disconnect from the TV, make sure it’s asleep (Option+Command+Eject buttons) or your Menu Bar will automatically change back to the MacBook.

    After a recent OS update, Clamshell mode quit working. I couldn't find any Apple documentation
    that would help. So many people were stabbing around in the dark, until I finally found the following information
    that is lacking from any Apple documentation that I've been able to find.
    Here's what I found to be the most helpful:
    Forcing a MacBook to use the External Monitor:
    I tried about everything: Rebooting, switching off completely, removing and inserting the Thunderbolt->HDMI adapter etc.
    The only thing that finally worked was the following:
    1. Take it out of the dock and connect to Power and HDMI to the TV.
    Shut down the Mac. Turn it on and close the lid. It will now boot up on the external screen.
    Log onto the Mac, and put it in sleep mode (Option-Command-Eject).
    Put it back into the dock and wake it up with the spacebar.
    It should be OK now... until the next update...
    Note: One indication that you’re going to have extreme trouble with this is when (occasionally and without reason) the Mirroring Options icon shows up on the top icon bar.
    Other useful commands:
    “Command + F1” puts PC in Two-Screen MIRROR mode.
    If it’s REALLY being stubborn, do the following (Clamshell Must be open
    to see the arrangement tab.):
    In System Preferences > Display on the MacBook screen there should be an Arrangement tab when you have the MacBook hooked up to the TV and both screens working. When you click the Arrangement tab do you see two monitors side by side? One of them will have a Menu Bar at the top. Just click on the Menu Bar and drag it to the second monitor (Yes, I know, it’s hard to grab ahold of it...) That will make your EXTERNAL monitor your main screen.
    You can now use your MacBook in Clamshell Mode with a wired or Bluetooth keyboard and mouse.  http://support.apple.com/kb/HT3131 When you disconnect from the TV, make sure it’s asleep (Option+Command+Eject buttons) or your Menu Bar will automatically change back to the MacBook.

  • MBP Clamshell Mode - DVI to TV Adapter - Front Row Works - But No Video?

    Hi all,
    Have picked up an Apple DVI to TV adapter for my MB Pro. Have successfully got it to work in clamshell mode displaying Front Row on the TV without the external Mouse or keyboard.
    However, it will not play videos or movies on the TV.
    If I keep the lid open, it will play the video/movie on both displays as hoped. However, when I close the lid, all other Front Row stuff works - but no video picture! Is this some sort of overlay issue? How can I fix this? I do NOt want to burn my LCD when using it this way - would be a waste.
    Please pass on any thoughts!
    Thanks,
    Stu

    I also have this exact same problem. A little annoying since I have just spent $A35 on the mini dvi to dvi adapter and another $A50 on a good quality DVI cable. My LCD tv is set to millions of colors so that is not the issue.
    I have a 2.0Ghz Core2Duo Macbook. A quick google search If anyone knows how to fix it I'd be very grateful.

  • External Display won't work in clamshell mode

    Hi - I can't get my external display to work with the MacBook in clamshell mode - It works fine with the lid open.
    I'm using it with the apple bluetooth keyboard and mouse.
    I've obviously changed a setting without realising - can anyone help.
    Thank You.
    Ash
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    Mac OS X 10.6.8

    Sorry - I've now got it to work.
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  • Can't get 'clamshell' mode to work with Dell 2408

    I have been trying to get my Dell 2408 working in clamshell mode without any success. I have a USB keyboard, USB mouse, power adapter and monitor via DVI plugged in. I switch the display type to mirror, close the lid, wait for it to sleep, then wake it again by pressing a key on the keyboard.
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    My dell 2408 arrived today and I'm having exactly the same problem.I cant get it to go into clamshell mode. I lie, I got it to go into clamshell mode once. I don't know what I did. But it certainly isn't willing to go into clamshell mode again any time soon.

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    Hi, I bought the latest MacBook Air about four months ago pre-installed with Lion. About two months ago I bought the VGA adapter so I can use my MBA in clamshell mode. I plugged in my mouse and keyboard to the usb ports and everything worked great until I started messing with the display settings to try and improve the resolution. Now, I can't get my MBA to wake up from sleep on the external display when I close the lid. When I open my MBA, my external display acts as a secondary monitor. I've read other people's responses and they suggest InsomniaX or Caffeine or something. I DO NOT want to install these programs! It was working when I first bought it and that's how I want it. Help?

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  • How to get clamshell mode with Windows 7 on Macbook Pro?

    Hi,
    I am running Windows 7 on Macbook Pro using bootcamp. In OS-X, I can use this cool clamshell feature wherein after putting the MBP to sleep by closing the lid, as soon as I connect an external keyboard, mouse & monitor, I get the display on the monitor and immediately start using the keyboard & mouse too, converting the laptop instantaneously to a desktop.
    I am trying to do the same thing on Windows 7, close the lid of the laptop to put it to sleep, connect my external monitor, mouse & keyboard, but however the laptop never wakes up (even after moving the mouse & pressing keys in the keyboard). I tried several things in Windows 7. Under Power Options, Disabled "selective Suspend of USB", but that did not help. Next, in the "Device Manager", for the "Root USB Hub" & "Generic USB Hub", I tried to set "Allow this device to wake up the computer", under Properties -> Power Management, but that option is grayed out. I tried to experimented with Sleep types like S1, S2, S3, but except for S3, the other two are shown as "not supported by firmware" (using powercfg option in command line). Countless hours wasted on google search to get this working with no success
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    @mkultraviolent,
    Thanks for the quick reply.
    That seems to be a useful workaround, but I do not find the option mentioned in Display/ Nvidia control panel. However, I find an option in the "Power Options" which has a "Do Nothing" option in the combo box to select what "Closing the Lid" does. Is that what u are referring to?
    Also, one problem in this approach is, if we do not sleep when the display is closed, that will keep the internal display (laptop's display) running in clamshell mode even after the lid is closed? (which will heat up the laptop badly).
    The exact option I am looking for is, while the laptop is in sleep & lid closed state, connecting the external keyboard/mouse/monitor and pressing a key in the keyboard or moving the mouse should wake the computer from sleep. If this happens, the internal display won't be running. I am able to achieve this in OS-X.
    In Windows7, I have a workaround by which I can almost achieve this result, wherein, while the laptop is in lid-closed, sleeping state, after connecting the external devices (keyboard/mouse/monitor), I open the laptop's lid for a fraction of second, quickly move my finger over the touchpad & close the lid again. This wakes up the laptop, & while it is waking up, Windows realizes that the lid is closed and that external devices are connected and gets into clamshell mode (I have verified that in this state, the internal display is not running).
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    If my question is not clear, this video kind of explains what I want to achieve:
    http://www.youtube.com/watch?v=YOKu9uwdwZI&feature=player_embedded
    Appreciate ur help!

  • Can I use an external monitor/clamshell mode PERMANTENTLY?

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    Now I have successfully attached the monitor and keyboard, turned on video mirroring etc. and it's all working fine. No problems with getting the thing to work. The only problem is I am having to keep the PB screen open slightly so that I can shut down and boot up for each session (for various reasons I don't want to leave it in sleep mode). Even though I bought a keyboard that has a USB power button on it, I am still unable to use it to boot up (I can shut down though).
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    Hi there,
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  • Clamshell mode w/external monitor broken in 10.8.2

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    Thanks for the snarky reply.  I know how to do a search, you'd assume if I'm smart enough to try a terminal hack I knew how to use a web page search box.
    It looks like every discussion on the clamshell issue gets mysterious "closed," "helped" or "answered" when indeed there is no real solution, including the thread you linked, hence my new topic.  So I appreciate the help. </sarcasm>
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