Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Systems and Services > OS X > OS X 10.8 Mountain Lion

Reply
 
Thread Tools Search this Thread Display Modes
Old Oct 8, 2012, 05:19 PM   #1
d000hg
macrumors newbie
 
Join Date: Apr 2012
MacBook doesn't sleep on lid-close with external monitor

I got a DisplayPort->HDMI cable so I can use my TV as a 2nd monitor and it's great, except it is making close-lid functionality erratic. Sometimes it works as normal and the MacBook sleeps. Other times the MacBook carries on running as normal, windows are open/visible/running on the TV screen after the lid closes, even though the Apple logo on the lid is not lit up.

I really don't want to have to unplug the TV and replug it every time, so can anyone suggest a fix?

It's a late 2008 aluminium unibody MacBook which I did a clean 10.8 install on.
d000hg is offline   0 Reply With Quote
Old Oct 8, 2012, 07:37 PM   #2
switon
macrumors 6502a
 
Join Date: Sep 2012
Closed lid...

Hi,

Correct me if I'm wrong, but I believe that it may depend if your MB is plugged into AC power or not, as to whether it keeps running when you close the lid with an external monitor connected. I know this is the case when using the Thunderbolt port on the MBP to connect to an external Thunderbolt Display, but I'm not sure that the Mini-DisplayPort to HDMI adapter behaves the same way on a MB.

In any case, you don't mention whether your MB is plugged into power or not, so if it sometimes is and sometimes is not, then does this correspond to the times that closing the lid does not sleep the MB versus the times that it does sleep the computer?

Since running the external monitor with the lid closed on a MacBook is considered a feature and not a bug (called clamshell mode, I believe), then a "fix" would be to manually "sleep" the computer using the Sleep function on the Apple icon menu instead of closing the lid to sleep the machine.

Regards,
Switon
switon is offline   0 Reply With Quote
Old Oct 8, 2012, 10:19 PM   #3
oMc
macrumors regular
 
Join Date: Oct 2010
Location: France & Canada
Quote:
Originally Posted by d000hg View Post
I got a DisplayPort->HDMI cable so I can use my TV as a 2nd monitor and it's great, except it is making close-lid functionality erratic. Sometimes it works as normal and the MacBook sleeps. Other times the MacBook carries on running as normal, windows are open/visible/running on the TV screen after the lid closes, even though the Apple logo on the lid is not lit up.

I really don't want to have to unplug the TV and replug it every time, so can anyone suggest a fix?

It's a late 2008 aluminium unibody MacBook which I did a clean 10.8 install on.
That's normal. Some people are using their MBP closed and connected to an external monitor.

As said by Switon, it's called the clamshell mode. If you want to put your MBP asleep, you have to do it manually or unplug it from the AC power.
__________________
13" MacBook Pro (2010) - Fusion Drive [120 GB SSD + 1 TB HDD] - 8 GB RAM
iPhone 4S 64 GB
iPod Classic 80 GB
oMc is offline   0 Reply With Quote
Old Oct 9, 2012, 02:30 AM   #4
d000hg
Thread Starter
macrumors newbie
 
Join Date: Apr 2012
The Macbook is always plugged into AC power.

Thanks for the information; it sounds like the bug, if any, would be if it DOES sleep with the external display on.

I don't know much about HDMI/DisplayPort but should it make a difference if the TV is turned on, or simply that the cable is plugged into the MacBook?

If I close the lid and then turn the TV off, what should happen (it's hard to tell since the lid is shut!)
Equally, if I turn the TV to another source would the MacBook know that means it's not 'connected' any more?
d000hg is offline   0 Reply With Quote
Old Oct 9, 2012, 05:37 AM   #5
oMc
macrumors regular
 
Join Date: Oct 2010
Location: France & Canada
If you turn the TV off it will change nothing.

But I think if you unplug the HDMi connector, the MBP will sleep.
__________________
13" MacBook Pro (2010) - Fusion Drive [120 GB SSD + 1 TB HDD] - 8 GB RAM
iPhone 4S 64 GB
iPod Classic 80 GB
oMc is offline   0 Reply With Quote
Old Oct 9, 2012, 06:07 AM   #6
mackatacka74
macrumors newbie
 
Join Date: Oct 2012
Location: Australia
Weird.

I don't know if this is worthy of being in the thread, but I feel the need to say it. I have a Mini DisplayPort to DVI connector. When I plug it into a TV and close it, the TV signal turns off and my MacBook Pro sleeps. I have a mid-2010 model with a clean Mountain Lion installation.
mackatacka74 is offline   0 Reply With Quote
Old Oct 9, 2012, 08:14 AM   #7
kappaknight
macrumors 65816
 
Join Date: Mar 2009
Guys, don't make this more complicated than it has to be by plugging/unplugging stuff at every use.

If your laptop is stationary and it's always plugged into the external monitor - put it to sleep by either:

1. Clicking the Apple icon in the top left corner, then choose sleep.
2. Tap your Power button, click sleep.

You can leave everything plugged in as is.
kappaknight is online now   0 Reply With Quote

Reply
MacRumors Forums > Apple Systems and Services > OS X > OS X 10.8 Mountain Lion

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
MacBook Pro doesn't sleep when closing the lid timsaxman MacBook Pro 18 May 13, 2014 03:53 PM
Can I overheat my MacBook Air if I close its lid and use external monitor? lexicaller MacBook Air 35 Feb 10, 2014 10:40 AM
External monitor doesn't turn off with sleep mageus MacBook Pro 4 Jul 13, 2013 06:53 AM
When an external monitor is connected, my MBP won't go to sleep when I close the lid riggidy MacBook Pro 12 May 8, 2013 07:20 AM
Macbook Pro will not sleep when i close the lid capriseyhaze MacBook Pro 1 Apr 28, 2013 09:50 AM

Forum Jump

All times are GMT -5. The time now is 08:24 PM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC