Posted 03 October 2012 - 09:28 AM
Sorry for thread resurrection, but I've had this issue as well, and wondered if the use of keyboard shortcuts to sleep the machine was a success.
Also, for others that may be having this problem, I've noticed that it tends to be caused in two ways, at least for me.
1. If my MBP is asleep with a USB device plugged in, if I disconnect the device, I hear the HDD spin up and the sleep pattern of the front light changes to the awake mode. THen, if I open the lid it sleeps, and closing it wakes it up. Same thing if I plug in a device while asleep. Something about detecting the device being added or removed seems to toggle sleep mode, from which point on it is backwards.
2. I have used the second cause (though it's tricky to get right) to fix the issue. I have a pre-unibody MBP, with a button and latch to open the screen. If I accidentally bump the lid back down immediately after opening it, I get the reverse sleep mode toggle problem. If it keep "stutter-opening" it, I can usually fix it without having to do a hard reboot. I'm not sure this is good for the machine, but then again neither is a hard reset.... so I do kind of wonder which is the lesser of the two evils...
Hope this is helpful to someone out there!
PS - didn't see anything about thread resurrection in the rules, please let me know if this is frowned-upon. I didn't want to make a duplicate topic...