Computer does not sleep when inactive. White, solid indicator light on MBP.

I've done a bit of troubleshooting without favorable results. Here's the situation: The Macbook will not go to sleep from inactivity. If I close the lid it sleeps just fine, but it won't if I set the computer to sleep after a period of inactivity.
Take this example. Display sleep set to 10 min, computer sleep set to 15 min. At 10 minutes the screen will go black and the indicator will become solid white. At 15 minutes nothing changes and the computer will stay in this state perpetually.
I've rebooted the computer without opening any apps and this all still occurs. I've also checked the system with "pmset -g" and everything looks good. Here is the output from my most recent test.
Active Profiles:
Battery Power                    -1
AC Power                    -1*
Currently in use:
standbydelay          4200
standby          0
womp                    1
halfdim          0
panicrestart          157680000
gpuswitch          2
hibernatefile          /var/vm/sleepimage
sms                    1
networkoversleep          0
disksleep          10
sleep                    3
hibernatemode          3
ttyskeepawake          1
displaysleep          1
acwake                    0
lidwake          1
I'm at a loss trying to come up with what could be causing this. Any ideas?

Others have found that it works for a couple of times and you will be back to the no-sleep state. Consider reset as well.

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Computer does not sleep when lid is closed

Hey everyone,
Until about 15 minutes ago I had my powerbook G4 set to sleep whenever I closed the lid. Well, now it does not want to.
I installed a screensaver and used it for a little bit, and now uninstalled it.
The problem is, ever since installing and selecting that screensaver my computer won't sleep when I close the lid.
What is the process to restore this and get it so that it sleeps when I close the lid?
Thanks in advance!

Hey everyone,
Until about 15 minutes ago I had my powerbook G4 set to sleep whenever I closed the lid. Well, now it does not want to.
I installed a screensaver and used it for a little bit, and now uninstalled it.
The problem is, ever since installing and selecting that screensaver my computer won't sleep when I close the lid.
What is the process to restore this and get it so that it sleeps when I close the lid?
Thanks in advance!

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OK
This is a on going issue:
1-I paid for apple care 4 days prior to the expiration of my one year agreement with purchase, they shipped it a day after it expired of course, and at first it rejected my serial number saying it was beyond the date,
2-i contacted Apple, they fixed this and after calling them again they repeated the same thing, i can not down load techtool deluxe.
3-However, i used iMac apple care kit to download the latest Techtool deluxe only to find out it is not Leopard Compatible,
Apple did it again with a new OS, releasing it with no coverage leaving us all sitting around like PC geeks !
Now after several incidents with blue-tooth on the phone with tech support, like been told i have to pay money if its the OS doing this instead of the hardware itself, i am a bit fed up here., blue-tooth is dead and my macbook does not sleep, i can even see iChat still on while the screen is closed!
I no longer have confidence i the idea of going back to Tiger on this computer will fix a bad logic board as i read others with the similar BT problem.
Can anyone advise what to do next please?

used original dvds and found BT, LEOPARD bugs caused the BT problems.

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Make sure that iTunes is not running, print que is cleared and no dvd disc is in the super drive.
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My macbook does not sleep when I shut the lid. This happened recently after I had my fan repaired. I also updated the OS at the same time, so I'm not sure which triggered the problem.
I would have to manually select sleep before shutting the lid; and I would have to press the space bar after I've opened the lid to wake it.
The following thread applies to a MBP. Apparently my problem might be a faulty latch.
http://discussions.apple.com/thread.jspa?messageID=5325605&tstart=0
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I tried doing this fix using the guide on http://ifixit.com to dismantle my MacBook and find the battery/lid detector cable which indeed seemed loose at its connector just next to the headphone jack, but when I reassembled the mac still does not detect lid closing and now it doesn't even detect the battery anymore! Yikes! Looks like a trip to the apple store is required anyway.

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I found another similar post, however it was resolved by the individual reinstalling the operating system.
My issue is more complicated. I have made sure everything is up to date, all the settings that tell the system to sleep when the lid is closed are turned on. I have even turned those settings off off, just so I could turn them back on to make sure there wasn't something quirky about it.
I have tried restoring the system to factory settings using the recovery partition, as well as discs burned from the program that came with the computer. I have tried clean install from Windows 7, 8, and 8.1 discs.
The unit still does not sleep. I don't ever remembering it being able to. I once closed the display thinking it would sleep (power was plugged in). Woke up the next day, went to work for 8 hours, came back and felt that the system was really hot. Opened the lid and the screen was exactly as I had left it the day before.
When I first got the system in 2012, the screen did not work, so I actually had to send it to Atlanta, GA for repairs. It came back quickly, and it still did not work, so I actually sent it back to Atlanta, GA's repair center a second time in the same week. It came back working and I left it alone. I never tested the sleep/wake because I always just turned the system off when I was done with it, but now I am back in school and this little computer comes in handy, but I don't want to turn off the system manually going from class to class when I need to pack it away in my bag.
Could there be a hardware issue? Something inside not connected? This laptop works perfectly EXCEPT for the fact that it will not sleep when the lid is closed. It is out of warranty but had I known this was an issue while it was still under warranty, I would have inquired. This unit is in pretty fantastic shape, looks brand new too. No damage, never been dropped, and only ever handled by me (never loaned out).
How can I fix this?

Thanks for the reply, gat0gelat0.
Yes, those settings were the first things I checked. I also tried changing it to "Do nothing", then changing back to the sleeping option. It still does nothing when I close the lid.
I would like the functionality of it going to sleep when I close the lid for the convenience, like when class ends, I have to rush to my next class, I just want to close the lid, put it in my bag and run to the next class. Keyboard shortcuts like Fn-F4 work, but this laptop should have the functionality I am describing, and I want to figure out why it isn't working and how to fix it.
I suspect there is an issue with whatever is used hardware wise to sleep the machine. Either it's not being triggered, or it's not there, or it's broken. I've tried running a magnet around the bezel of the LCD screen as well as around the palm rest bezel and there is no activity as I've read that many laptops trigger sleep by interaction by a magnet. Still nothing.

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Satellite P50t (PSPNVU-01E03W)
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I have a 1ghz Aluminum Powerbook with the lower memory slot issue. Everything is working great (besides the memory issue of course), and this one other bug: When I close the lid, the powerbook does not go to sleep. I have to manually select "Sleep" for it to go to sleep. The sleep light comes on and all, but I guess it just doesn't recognize the display lid shut.
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Please see attached photo below:

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Computer does not sleep when inactive. White, solid indicator light on MBP.

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