Macbook Air still sleeps if running on battery but connected to external display

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What steps will reproduce the problem?
1. Run computer on battery whilst connected to external display
2. Activate NoSleep utility
3. Close computer lid

What is the expected output? What do you see instead?
Expect computer to remain running but instead remains running for a few 
seconds, external display refreshes as only display and then almost immediately 
after computer sleeps.

What version of the product are you using? On what operating system?
NoSleep 1.2.1 running on 2011 Macbook Air running Lion

Please provide any additional information below.

Original issue reported on code.google.com by stphnhl...@gmail.com on 2 Aug 2011 at 5:45

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I have the same issue with a 2010 MacBook Pro 13" running Lion 10.3

Original comment by raul.and...@gmail.com on 14 Mar 2012 at 8:16

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Original comment by integral...@gmail.com on 14 Mar 2012 at 3:30

• Changed state: Accepted

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Original comment by integral...@gmail.com on 23 Apr 2012 at 10:30

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Appears that No-Sleep 1.3.0 still has the issue, at least on 10.7.3

Original comment by Kair...@gmail.com on 5 May 2012 at 5:24

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Yes, the issue is still there:)

Original comment by integral...@gmail.com on 5 May 2012 at 5:50

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Original comment by integral...@gmail.com on 14 Jun 2012 at 5:31

• Added labels: Priority-High
• Removed labels: Priority-Medium

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Fixed. Will be introduced in 1.3.1

Root cause: a small gap between display initialization and disabling a 
clamshell. Added a 10 seconds delay based on kIOPMSleepDisabledKey

Original comment by integral...@gmail.com on 14 Jun 2012 at 5:50

• Changed state: Fixed

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Issue 44 has been merged into this issue.

Original comment by integral...@gmail.com on 29 Jul 2012 at 12:31

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Issue 44 has been merged into this issue.

Original comment by integral...@gmail.com on 29 Jul 2012 at 12:44

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Fantastic program.  Having this issue too.  Any idea when you will release 
1.3.1?

Thanks!

Original comment by ben.ku...@gmail.com on 14 Aug 2012 at 8:07

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Version 1.3.1 is perfect. Thanks a lot! :-)

Davide

Original comment by maiorcad...@gmail.com on 16 Aug 2012 at 10:08