Mavericks 10.9.3 and MacBook clamshell mode

The trick with
sudo nvram boot-args=”iog=0×0″
that worked since 10.8 Mountain Lion stopped working under 10.9.3. Had to reset NVRAM/PRAM to solve the problem of blocked brightness of the internal display (was not able to change the brightness of the internal display). Of cource the clamshell mode does not work anymore and the display will be active immediately after I open the MacBook Pro in my office environment (external Cinema HD, through mini display port).
Does someone have an idea how to resolve this and to get a working clamshell mode back?
Thanks, Andreas

I use that command to turn off my internal screen and opted for 2 external monitors with the clam shell open for better air flow. This still works for 10.9.3 with the following instructions from the link.
As for you dilemma, have you tried removing that command?
sudo nvram -d boot-args
http://gizmodo.com/5938452/a-trick-to-make-using-an-external-monitor-with-your-m acbook-way-better

Similar Messages

Have the clamshell mode requirements been relaxed?

I'm experiencing what I consider to be some odd behaviour regarding an external display hooked up to my MacBook:
With the external display being the only peripheral connected, the MacBook will enter clamshell mode when I close the lid.
It was my understanding (supported by documentation) that clamshell mode required output and input (a display and a keyboard and mouse; be they wired or bluetooth).
How can it make sense for a laptop to enter clamshell mode with only an external display connected?
When I close the lid with the external display connected:
the external display becomes the main display
all the windows that were open on the lid display pop across to the external
my desktop spread, littered with icons, appears on the external
the MacBook does not enter sleep
I don't have a bluetooth keyboard or mouse connected; I don't even have bluetooth on.
To the best of my knowledge I'm unaware of any settings that would affect this behaviour.
Does anyone else experience this same behaviour?
Have the clamshell mode entry requirements been relaxed in Mavericks (admittedly, I haven't used clamshell mode in previous versions)?
Is this a feature or a bug?

Reading comprehension is not your strong suit. Those notes are not under the heading "Opening the internal display while in closed clamshell mode."
Here, I've copied more for you. Opening the internal display is discussed much later in the article......MUCH later.
Requirements for closed display mode:
Power adapter
External keyboard, mouse, or trackpad
External display
Use these steps to enable closed clamshell (display closed) mode:
If you are using a wired keyboard and mouse:
Make sure the computer is plugged in to an outlet using the AC power adapter.
Connect a USB keyboard and mouse to your computer.
With the computer turned on connect the Mac notebook (using the appropriate Apple adapter if necessary) to the appropriate port on the external display or projector and turn the display or projector on.
After your computer's Desktop appears on the external display, close the computer's lid.
When you close the lid:
In OS X Lion and later, the external display will change to a blue screen, then will show your desktop.
In Mac OS X v10.6.8 and earlier, wake the computer up by clicking the mouse button or by pressing a key on your external keyboard.
You should now be able to use your Mac notebook as you normally would, with a USB keyboard and mouse.
If you are using a Bluetooth keyboard and mouse on a Bluetooth enabled Mac notebook:
Make sure the computer is plugged in to an outlet using the AC power adapter.
Verify that Bluetooth is turned on by using the Bluetooth pane of System Preferences or the Bluetooth menu icon.
Pair your Bluetooth keyboard or mouse with the computer. For step-by-step instructions, see this article for keyboard pairing or see this article for mouse pairing.
In System Preferences, be sure that the Allow Bluetooth devices to wake this computer option is selected.
With the computer turned on connect the Mac notebook (using the appropriate Apple adapter if necessary) to the appropriate port on the external display or projector and turn the display or projector on.
After your computer's Desktop appears on the external display, close the computer's lid.
When you close the lid:
In OS X Lion and later, the external display will change to a blue screen, then will show your desktop.
In Mac OS X v10.6.8 and earlier, wake the computer up by clicking the mouse button or by pressing a key on your external keyboard.

Macbook Pro 15" - clamshell mode doesn't work after installing Mavericks

So I've upgraded to Mavericks, but my late 2011 MBP 15" has stopped working in clamshell mode (closed lid with external display on) – display just does not detect an input after closing the lid. Anyone experienced this?

This was het same problem as in upgrade to Mountain Lion before... Apparently the NVRAM reset should fix this (PRAM-reset for non-intel based macs)
>>>
OK, after upgrading to 10.8.2 and then doing a PRAM reset gives me clamshell mode back!

Do I need 2 keyboards for macbook and iMac in clamshell mode?

Hi Experts, do I need 2 wireless keyboards to work with macbook pro connected to iMac in clamshell mode? or can the keyboard be switched from iMac to MacBook 'on the fly' (after activating TDM mode)?
Problem is that when I activate TDM to display the MacBook screen on the iMac (used as the display only), the wireless keyboard is still connected to the iMac and can not be found by the macbook. So in clamshell mode, i.e. with a 'closed' macbook', I do not have a keyboard...
Thanks and best regards, Chris

Hello christoph128,
Thanks for using Apple Support Communities.
To get a wireless keyboard to work with multiple computers in any situation, you would first need to unpair the keyboard with the iMac, and then pair it with the MacBook Pro. Since that's the case, it might be easier to either use a second wireless keyboard paired only with the MacBook Pro, or have a USB keyboard.
Bluetooth: How to set up your Apple Wireless Keyboard - Apple Support
Mac notebooks: How to use your computer in closed clamshell (display closed) mode with an external display - Apple Support
Cheers,
Alex H.

HDMI Closed Clamshell mode display wake crash with Mavericks.

Hi!
Macbook Pro 2.8 GHz Intel i7, 16GB DDR3 RAM, OS X 10.9.3
So, I am running a macbook pro with an external HD display through the HDMI out on the computer, and the comptuer itself running in closed clamshell mode. Sometimes when the display sleeps I can not wake it up again, to the extent that I have to unplug everything and do a hard reset of my macbook. If music is playing it begins to skip. The display attempts to turn back on but then the screen goes blank. This seems to only happen when the display sleeps, not the computer itself.
I was just wondering if a) Anyone else was having this problem and b) if Apple were aware of it?
I have done my research and I use closed clamshell mode properly (Restart my comptuer when plugging in to the monitor, sleep before disconnecting etc.) and so far I have not lost any data, however I am concerned that having to manually restart my computer 3-4 times a week may at some point severely affect a document I am working on, particularly with Apple's latest software such as Mavericks and Logic X seemingly being so volatile at the moment.
Any help you could provide would be much appreciated!
Thanks!

Hello bambambam8am,
Thanks for using Apple Support Communities.
What troubleshooting have you done so far? Have you reset the SMC and PRAM? If not, follow the articles below for instructions:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
Take care,
Alex H.

Mavericks clamshell mode stopped working

I have a summer 2007 15 "MacBook Pro and since upgrading to mavericks clamshell mode doesn't work anymore. Now closing the lid doesn't do anything and the laptop screen stays on and the computer doesn't sleep. I saw a blog entry which gave a terminal code to boot with the internal screen disabled. This is not the ideal way and secondly the computer still thinks the screen in use and as a result still is producing the desktop associated with the internal display.
I want to have not only the screen off, gets really hot otherwise, but also the os to only create one desktop such that my windows don't get scattered over desktops that aren't visible. I just really need clamshell mode to work again.
Any thoughts?

Finally found a fix, i reset my smc. This not only returned clamshell mode back, but returned the fan level to a more normal and less noisy level. I guess the moral of the story is never update your OS while in clamshell mode.
http://support.apple.com/kb/HT3964

Mid-2010 MacBook Pro stuck in clamshell mode?

I asked a similar question to this earlier, but now the problem has been more consistent. I have a mid-2010 MacBook Pro that I often use with an external display, plugged in via mini-DVI to HDMI adapter. The problem is, after I've unplugged my macbook to "go mobile" and am away from my display, if I ever have to restart my computer or boot into Windows 7, my computer will think it's still in clamshell mode. The screen will stay dark, and if the lid is closed, the white light will stay on steadily, not pulsing. However, if I plug into my external display when this is happening, the external display works fine and I have a display again. When I look up my displays while connected to an external display while this is happening, my internal display isn't even listed in the system report; it's like it doesn't exist! And this is especially a problem now as I am away on a 3 week school related trip.
I have not been able to consistently reproduce this problem. Sometimes it restarts normally, sometimes I restart it and get the gray + apple logo screen that then goes dark, and sometimes the internal display just never turns on. The problem doesn't seem to be related to an OS, as it happens when booting into Windows 7 OR mountain lion 10.8.5. I've tried resetting PRAM mutliple times as well as performing an SMC reset multiple times, and neither has helped. This even happened when I was booting into a mountain lion install USB, as I thought maybe a fresh install would help. I've seen many other forums discussing a similar issue, but none described quite like mine.
What gives?? How can I get my macbook to restart normally? I really don't want to have to make a repair, even though it's looking like a hardware problem. My computer is one month after Apple Care has expired, and I can't afford a pricey repair as I'm a very in debt student who only has a MacBook because his school gave it to him in the first place. I would be very appreciative for any suggestions and/or help! Thanks!

Hello thedoctor8706
Reset your NVRAM and test to see if that resolves your issues. Typically that will resolve video, volume, startup disk selection, and kernel panic issues.
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
Thanks for using Apple Support Communities.
Regards,
-Norm G.

Can running Macbook Pro in Clamshell Mode cause problems for Macbook Display?

Hi,
I recently got a new monitor (Dell U2711) and it is stunning when running at full resolution through a mini displayport to displayport adapter. However, i ran my MBP in Clamshell Mode and after rebooting (without the display this time) i had horrible lines across my screen. It was like a grid, but they were tiny, it was like i could see the individual pixels or groups of about 4. I turned it off straight away and when i came back to it (about an hour or 2 later) it was as normal.
I just want to know what is the regular behaviour of running in Clamshell? Is that to be expected? I know that Macbooks dissipate heat through the keyboard, so i wonder if it could be a heat related problem, and if that's something i should be worried about in relation to causing long term damage to my mac's display, or will it always sort itself out?
Sadly, i can't recreate the problem as i have a faulty monitor and it needs to be sent back (i will be getting the same model as a replacement though).
Does anyone have anything to say on this matter?
Thanks in advance
mrmeister

Shootist007 wrote:
Is this a brand new, less then a year old, MBP? If it is then take it to a Apple care center and have them look at it.
It's a refurb late 2008 that i bought in late 2009, but i do have apple care until september 2012 i think, i guess if the problem happens again i can take it in and they can sort me out.
eww wrote:
MBPs don't dissipate any significant amount of heat through the keyboard. No matter how often that misconception is posted, it's still a misconception.
Ok, so it shouldn't be anything to do with heat then, i know the top left corner (closest to the screen) gets pretty hot too, just above the speaker, but from Shootist007's post, it would appear that heat doesn't have anything to do with it. I mean, i wasn't running intensive tasks, i was only browsing the internet.

MacBook late 2008 - stuck in clamshell mode

This laptop was recently attached to an external display and all was fine - running in either mirror or non-mirror mode. When I last saw it it was set to mirror mode and the lid closed to effect "clamshell" mode.
Recently however it has got into a state where the built-in screen display is not recognised. The external display is OK. If the external display is disconnected the MacBook will go to sleep regardless of the lid being open or pressing keys etc.
On a reboot the laptop screen will show everything OK up until a few seconds after completeing the login phase - then it goes black.
There is a lot of chatter in various forums about sleep issues but I can't see much about this particular variation. I've spent several hours scanning through these discussions and general Google searches.
As I say in the title - the symptoms appear to be that the firmware believes the lid is closed and hence the OS X software, such as display preferences, gets locked out from accessing the display after startup is complete. If the OS decides there is no display present it puts the MacBook to sleep.
I have reset the PRAM and SMC, rebooted in Safe Mode, deleted the display preferences plist file, run the Apple Hardware Test - all with no change to the symptoms.
Hass anybody reading this observed the same symptom and noted a method to fix it?
Thanks,
Graham

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.
External video continued working via the mini displayport, but the internal display would stay black no matter if the external display was connected or not. I was also unable to adjust the display brightness from the internal keyboard, pressing the F1 and F2 keys had no effect (even while holding fn key). Resetting PRAM and SMC had no effect.
I resolved all aforementioned issues by replacing the HDD Bracket with IR/Sleep Cable. This can likely be done fairly cheaply at a local Apple Store.
I might suggest first having the HDD Cable and or IR/Sleep Cable reseated on the main logic board, before replacing anything.

Hi - How do I connect an HDTV as a second monitor to Thunderbolt display with macbook pro in clamshell mode?

I have a Late 2011 Macbook Pro in clamshell mode connected to a Thunderbolt Display with the built in Thunderbolt cable. I want to then connect an HDTV via the Thunderbolt port at the back of the Thunderbolt display. I already had a cable that I thought would work which turns out to be a MiniDisplay port to HDMI cable and therefore not compatible with Thunderbolt to Thunderbolt (Mini DisplayPort not being the same technology although it uses the same port - although I'm not an expert !!) So far a web search has provided me with the only solution being using a Thunderbolt dock or storage that has multiple Thunderbolt ports and then using that to daisychain inbetween the Thunderbolt Diplay and the HDTV. The cheapest solution I can find for this would be about £250. Surely not ??!!!!
Many thanks for any comments - Nik

You could also use aThunderbolt dock with HDMI, such as:
<http://www.belkin.com/uk/F4U055-Belkin/p/P-F4U055/>
<http://www.caldigit.com/thunderboltstation/>
<http://www.elgato.com/en/thunderbolt/thunderbolt-dock>

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.
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!

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.

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
I would greatly appreciate any help on this issue.
Thanks,
Sri

@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).
This workaround was fine so far, but I got this hengedocks docking station for my macbook, and I am no longer able to use the workaround, because, after plugging my macbook into the docking station, I cannot open the lid. So, the only option is to make Windows7 realize that external devices are connected & wake up on external keyboard stimuli (Hence the question).
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!

Upgraded from 10.6.8 to Mavericks last week on my MacBook Pro running the 2.4 GHz i5 and it's painfully slow on start-up- I mean, 5 minutes or more, to be fully functional... Is this normal?

Upgraded from 10.6.8 to Mavericks last week on my MacBook Pro running the 2.4 GHz i5 and it's painfully slow on start-up- I mean, 5 minutes or more, to be fully functional... Is this normal?

Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
     Boot to the Recovery HD: Restart the computer and after the chime press and hold down the
     COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the
     computer and after the chime press and hold down the OPTION key until the boot manager
     screen appears. Select the Recovery HD and click on the downward pointing arrow button.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
     Reinstall the 10.9.2 update: OS X Mavericks 10.9.2 Update (Combo).
4. Reinstall Lion/Mountain Lion, Mavericks: Reboot from the Recovery HD. Select Reinstall Lion/Mountain Lion, Mavericks from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Reinstall the 10.9.2 update: OS X Mavericks 10.9.2 Update (Combo).

Problem using clamshell mode with 2010 Macbook Pro

I'm trying to use my mid 2010 Macbook Pro in clamshell mode with my Sanyo TV as a monitor. I have an external keyboard and mouse and I keep it plugged in when trying to do this. I have tried with mirrored and seperate displays, both with the TV as secondary and primary display, and whenever I close the lid the TV suddenly says that the input resolution has changed and is out of the range of the TV. I have tried changing the resolution on both the TV and computer when both displays are active and it has made no difference. Is there a way to make this work or a way to keep the computer from changing the output resolution when I close the lid?

I have discovered that the issue is that the computer won't wake from sleep mode. I still have no idea what the problem is but it also occurs if I put the computer to sleep with the display open.

Mavericks 10.9.3 and MacBook clamshell mode

Similar Messages

Maybe you are looking for