Can't function with MacBook Pro Lid Closed

davidt · 01-12-2012, 06:23 PM

I have a MacBook Pro (october 2011) and 2 BVU195 units. Both external monitors function, but when I close my macbook pro lid the system doesn't seem to recognize that I no longer have that display. Anything on the laptop display stays there and I can't access my dock. I know I can move the dock, but the system frequently opens windows (including system preferences) on the screen of the closed macbook.

Carlo · 01-13-2012, 08:15 AM

Mac OS requires a screen to be connected to the built-in external screen output to enter clamshell mode and thus disable the internal screen.

jeff-y · 01-31-2012, 05:23 AM

I'm having the same problem as David.

I have two external monitors: one from my Thunderbolt (mini display) port, and another on my USB DisplayLink.

When I enter clamshell mode, the internal monitor is not disabled.

If I *only* use the Thunderbolt (mini display) port, in clamshell mode, with the DisplayLink driver, then I have the same problem: the internal monitor is not disabled. I don't have this problem when the DisplayLink driver is removed.

I'm on a MacBook Air with Lion 10.7.2.

Thanks!
-Jeff

mikefoley · 01-31-2012, 07:20 PM

I think you'll see that this is the same problem I reported in http://www.displaylink.org/forum/showthread.php?t=1359

DisplayLink guys are working on it. Apple knows about it. Hopefully something soon will come out and make it work the way its supposed to.

mike

01-12-2012, 06:23 PM	#1
davidt Junior Member Join Date: Jan 2012 Posts: 1	Can't function with MacBook Pro Lid Closed I have a MacBook Pro (october 2011) and 2 BVU195 units. Both external monitors function, but when I close my macbook pro lid the system doesn't seem to recognize that I no longer have that display. Anything on the laptop display stays there and I can't access my dock. I know I can move the dock, but the system frequently opens windows (including system preferences) on the screen of the closed macbook.

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01-13-2012, 08:15 AM	#2
Carlo Mac Team Join Date: Feb 2009 Posts: 606	Mac OS requires a screen to be connected to the built-in external screen output to enter clamshell mode and thus disable the internal screen.

01-31-2012, 05:23 AM	#3
jeff-y Junior Member Join Date: Jan 2012 Posts: 16	I'm having the same problem as David. I have two external monitors: one from my Thunderbolt (mini display) port, and another on my USB DisplayLink. When I enter clamshell mode, the internal monitor is not disabled. If I only use the Thunderbolt (mini display) port, in clamshell mode, with the DisplayLink driver, then I have the same problem: the internal monitor is not disabled. I don't have this problem when the DisplayLink driver is removed. I'm on a MacBook Air with Lion 10.7.2. Thanks! -Jeff

01-31-2012, 07:20 PM	#4
mikefoley Junior Member Join Date: Dec 2011 Posts: 14	I think you'll see that this is the same problem I reported in http://www.displaylink.org/forum/showthread.php?t=1359 DisplayLink guys are working on it. Apple knows about it. Hopefully something soon will come out and make it work the way its supposed to. mike