TB display w/MBA 2011 clamshell won't sleep, still glows in dark room

Subject says it all.
The computer is the latest model 2011 MacBook Air with Thunderbolt.
The display is the latest model 27" Thunderbolt Display.
I use the MBA in clamshell mode.
When I use any of the following methods to put the display to sleep, it darkens, but doesn't shut off the back lighting and I still see the mouse no problem.
• Hot Corner to force sleep (set via System Preferences)
• Control + Shift + Eject
• Waiting 5 minutes of inactivity (set via System Preferences)
I don't think this is right.

Software update finally kicked in and said there was a "Thunderbolt Display Firmware Update". The update was FAST and now my problems are solved.
Thanks Apple bugfixing elves! :-

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http://support.apple.com/en-us/HT204063
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Here is KB article HT1776 with their tips.
Mine follow;
USB devices and hubs often cause Macs to not sleep or wake quickly from sleep (notably HP printers and scanners, HP all in ones, and Cannon scanners). Disconnect all USB except for keyboard and mouse and try. If it sleeps, add one back at a time testing after each one to find the culprit.
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Check the printer queue!"
Allan Jones says "sometimes there is Network activity: launch System Preferences > Energy Saver > "Options" tab and uncheck "Wake for Ethernet network administrator access."
Good Luck!  DALE

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When rebooting the computer, the display sleeps after set interval and can manually be put to sleep using shift+ctrl+eject.
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Regards Robin Hansson

When rebooting the computer, the display sleeps after set interval and can manually be put to sleep using shift+ctrl+eject.
However if the computer goes to sleep or I myself close the lid to make it sleep, the display won't sleep again.
The display won't sleep after set interval in power settings and when I press shift+ctrl+eject the keyboard backlit turns off but the screen stays on.
The only way to make it sleep is to close the lid.
I have tried resetting SMC and NVRAM but to no avail.
I have the first generation aluminium macbook.
Does anyone else have this problem?
I have had this problem both in 10.6 and 10.8
Regards Robin Hansson

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Long shot.
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Message was edited by: ChrisAr155

TB display w/MBA 2011 clamshell won't sleep, still glows in dark room

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