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EEXOOO

macrumors regular
Original poster
Aug 1, 2009
133
0
Is there a way to turn off the MBP Display, while connected to an external display without being in clamshell mode?

I'm running Lion, MBP 15" 2011.
 
turn the brightness all the way down? I do that with mine...

I'm running a 1440p external monitor, by simply turning the brightness down the MBP is still putting in graphical processing power to the MBP display.
This way my Mission Control lags and I'm not too pleased with that kind of performance.
 
I'm running a 1440p external monitor, by simply turning the brightness down the MBP is still putting in graphical processing power to the MBP display.
This way my Mission Control lags and I'm not too pleased with that kind of performance.

ahh I understand now. Never gotten lag like you are describing though.
 
Not sure in Lion because I haven't done this in a while but I used to do this. Connect the display, close the MacBook Pro. Connect a keyboard, mouse, or even wake it up with the remote. It should wake on the external display but the Mac should still be closed. Open the Mac and the screen doesn't come on but the external display still is on. So technically you do have to close it to do this but you can open after.
 
Not sure in Lion because I haven't done this in a while but I used to do this. Connect the display, close the MacBook Pro. Connect a keyboard, mouse, or even wake it up with the remote. It should wake on the external display but the Mac should still be closed. Open the Mac and the screen doesn't come on but the external display still is on. So technically you do have to close it to do this but you can open after.

In Lion, when you close the lid the MBP doesn't go into sleep mode. It simply switches to the external display. When I open the lid, the display on the MBP comes back on.
 
In Lion, when you close the lid the MBP doesn't go into sleep mode. It simply switches to the external display. When I open the lid, the display on the MBP comes back on.

Don't connect the external display until the Mac is closed and in sleep mode, which may take up to thirty seconds like mine does. After sleeping then connect the display and wake up without opening. Try that, again maybe different in Lion.
 
Don't connect the external display until the Mac is closed and in sleep mode, which may take up to thirty seconds like mine does. After sleeping then connect the display and wake up without opening. Try that, again maybe different in Lion.

Sadly it doesn't work. Really appreciate you taking the time though. Thanks :)
 
Holy balls you guys I just realized I posted the wrong link. I was on my iPad last night and must have not pressed the copy right and I posted an old link. Sorry about that.

Here is what I was trying to post: http://support.apple.com/kb/ht3131

Note it says about halfway through because this is what I think your trying to do:
Note: If your external display is not recognized when it is connected and the computer is powered on, try connecting the display while the computer is asleep or while the computer is off; wake or power on the computer after you connect the display.
 
I've been running in CS mode with my MBP (15" i5 mid 2010) and a 27" ACD. Since upgrading to Lion, the MBP seems to be running about 4 or 5 degrees hotter which worried me. Since reading a post here on the forum about slightly opening the lid of the MBP (about an inch or two) I can still run without powering both displays yet still allow a bit more heat to escape when running CPU intensive tasks...
Thus far, I am quite happy with the results...temps running about where they were with SL...
 
Holy balls you guys I just realized I posted the wrong link. I was on my iPad last night and must have not pressed the copy right and I posted an old link. Sorry about that.

Here is what I was trying to post: http://support.apple.com/kb/ht3131

Note it says about halfway through because this is what I think your trying to do:

I believe the link you provided is talking about the clamshell mode.

Ronnoco said:
I've tried out the magnet "hack" and it works. For the moment I'm gonna stick to this method while waiting for Apple to do something.

Thank you all for your time, for the time being the magnet "hack" is the only workaround.
 
I believe the link you provided is talking about the clamshell mode.

Ok I suck at copy and paste. So what I did was what the article said. Then after the external display is on and everything then open your laptop. The screen should not come on.

This is what I meant to quote originally from the article:
If you open the lid of your supported Apple portable computer while in closed clamshell mode you may notice it appears to have no video. This is expected behavior. When your computer is in closed clamshell mode the built-in display is disabled and all video memory is allocated to the external display for best performance.
 
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