Submit Hint Search The Forums LinksStatsPollsHeadlinesRSS
14,000 hints and counting!

Quickly reactivate a monitor used in clamshell mode Laptop Macs
I don't know if everybody except me has known this for years, but ... I have my MacBook rigged to a Dell display through DVI, and I mostly run it in clamshell mode. The annoying thing has been that when I reconnect my MacBook after having used it on the road, I have a hard time getting anything to appear on the external display.

I used to wiggle my Bluetooth mouse, and press the space bar on my Bluetooth keyboard for some time, and keep on doing this until (eventually) the display would light up. There is, however, a far simpler solution to this problem: after reconnecting your MacBook, just switch the display off and on again and presto -- instant image!
    •    
  • Currently 3.00 / 5
  You rated: 5 / 5 (4 votes cast)
 
[10,258 views]  

Quickly reactivate a monitor used in clamshell mode | 4 comments | Create New Account
Click here to return to the 'Quickly reactivate a monitor used in clamshell mode' hint
The following comments are owned by whoever posted them. This site is not responsible for what they say.
Quickly reactivate a monitor used in clamshell mode
Authored by: jwdunn on Jun 08, '07 12:29:58PM

I've been considering leaving my MBP closed during regular use as well. Have you noticed any heat problems? I do a lot of processor-intense work...and I've been keeping it open just because I worry about overheating.



[ Reply to This | # ]
Quickly reactivate a monitor used in clamshell mode
Authored by: gregraven on Jun 08, '07 05:18:06PM

The Apple-suggested method is not that difficult:

After reconnecting your external monitor (with the built-in monitor open), put the computer to sleep, and then close the built-in monitor. When you re-awaken the computer, the external monitor will turn on.

---
--
Greg Raven
Apple Valley, CA



[ Reply to This | # ]
Quickly reactivate a monitor used in clamshell mode
Authored by: canyontop on Jun 10, '07 04:37:41PM

1. close the clam (or powerbook in my case)

2. somehow wake up the laptop with cover closed.
I just plug or unplug some random USB device;
other methods have been mentioned in the past

3. external display comes on

4. then open laptop -- YES for cooling -- and its
display should remain dark



[ Reply to This | # ]
Quickly reactivate a monitor used in clamshell mode
Authored by: frgough on Jun 11, '07 11:00:50AM

The key is the power cord. When disconnecting from the external monitor, unplug the power cord first. When re-connecting, plug in the power cord last. Receiving AC power is the trigger your powerbook uses to activate the external monitor with the lid closed, or go to sleep with the lid closed.



[ Reply to This | # ]