Caffeine cause Sleep Mode Malfunction in lion !!!

Incedent was happen when download and installed "Caffeine" from App store. The lion won't go to sleep any more. I had tried uninstall the "Caffeine" but the lion still wouldn't go to sleep. The only way i can make it sleep is to "Schedule" time for the lion go sleep then it sleep. Else it only turn off monitor only.
Please remind the developer to update their software to support lion. Anyway can resolve without reinstall the lion because of sleep issues??

I'm having exactly the same issue with my late 2010 27" iMac. The keyboard and mouse and trackpad won't wake the machine after being put to sleep manually.
I found that when I woke it up using my Wacom tablet (connected via USB) the Bluetooth devices were NOT connected and nothing I did would wake bluetooth.
I had to do a Restart which cleared the problem. I suppose without a hardware connected input device you're limited to shutting the machine down using the power button which is less than ideal.
This never occured with Snow Leopard.

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Random sleep mode after Mountain Lion install

Hello, I have a MacBook air 11" late 2011.
after installing Mountain Lion I get random sleep modes, usually right after a waking up the computer.
that has never happened before so I assume that it is a sotware issue.
I do not have a hot corner for sleep (have checked)
anybody else has the same problem

It goes to sleep sometimes right after I wake up the computer ..
wake up , 3-5 seconds .. I click somewhere.. it goes to sleep
any downsides of resetting the PRAM and SMC

Wifi disconnects when waking from sleep mode; running Mountain Lion

Had this same issue with Lion as well,, wifi disconnects when waking from sleep mode,,,any ideas how to fix this pesky issue?

Hi Sky,
This has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.
Also, turn off IPv6:
System Preferences » Network » AirPort » TCP/IP tab » Configure IPv6
Or whatever Interface you use.

Is there a trackpad gesture that causes sleep mode to turn on?

I have a new mac book pro with retina display (purchased in March) and recenlty while working the screen will go black. The machine appears to be in sleep mode, so I am wondering if I am accidentally using a gesture on the trackpad that could cause this?

This is not normal.
A new Mac comes with 90 days of free tech support from AppleCare.
AppleCare: 1-800-275-2273
Make use of it.

Power-button is not working properly anymore. It is causing sleep mode!

Hey all!
I have a MacBook Pro Retina 15 inch, which is one year old. Lately I am experiencing a strange problem.
I cannot shut the mac down by pressing the power button. Usually the windon with the options should pop-up.
Instead of this, it makes my mac to go immediately to sleep mode.
I dont know what caused this and I dont know how to fix that.
Does anyone of you have a clue?
Thanks a lot!

I'm experiencing the same curious problem, here(Macbook Pro 13", mid 2009). This started after upgrading to, Mavericks. One press of the power button always used to bring up the dialog box with the various options. Now, just a press of the power button, and it's immediate sleep time. Music that was playing in iTunes stops playing, so it's different from the screen sleeping.
But, as dominic23 states, "Press and hold the power button for seconds until the dialog box appears", does seem to do the trick. This is just a different behavior than in the past.

Apps do not respond when waking from sleep mode in Mountain Lion

updated to the new OS a few weeks ago (no more than 14days) - since the upgrade, everytime the Mac awakens from the sleep mode, nothing responds.
If you select the app the app will just bop up and down.
If you try to clear trash, the message window appears but doesn't complete the task.
If in Safari, the page doesn't load.
In iPhoto the a blank window opens but nothing else apears and the loading icon continues to rotate but nothing else happens.
The mac is using an ether net cable and not over wifi.
There is no problem if once I restart the machine, however this has to be done via the power scoket as the "restart and shutdown" options again do not respond and timeout.
To save energy I use the sleep mode all week Sunday PM to Friday AM. The machine is usally switched off all Day Saturday. However as I use it everyday during the week I avoid turning it on and off everyday. It is only 2 years old and I did not have this problem before the upgrade.
Anyone got any ideas or having simliar issues?

Hello:
From what you describe, I would probably reinstall OS X 10.8. In answer to your question, I have not seen anything similar.
You might also look at your log files around the wake time to see if anything looks "odd."
Barry

Sleep mode malfunctioning

I'm unable to get the laptop to respond after it's in sleep mode. The screen goes blank but the computer still runs with the power button still on.
I have to long press the power button to switch it off and then on again. I then get the 'Windows Recovery' page and continue from there.
I've removed the battery and gone through the process of draining it but the result is still the same.
I'm not sure if this is related but the fan seems to continually run too. I've tried to clean it using compressed air but this hasn't made any difference.
Please help!!
Best wishes,
Simon

Hi lovesleedsme,
How set it go to to sleep? What do you have the operating system do when you close the lid? This third-party link will show you how to check that settings. If is not set to Sleep give that a try and see if it enters sleep mode that way.
Do you have all your Windows Update and HP Support Assistant updates installed?
Please click “Accept as Solution ” if you feel my post solved your issue.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Thank you,
BHK6
I work on behalf of HP

IMac powers off in sleep mode after Mountain Lion installation

After I installed Mountain Lion on my 2010 iMac, it will power off after I don't use it a while. It used to just go to sleep, I'd shake the mouse, and it would come back up. Now it powers off and I have to power it back up every time.
My Macbook has NOT had this problem since Mountain Lion install. It is fine.

Try doing a smc and pram reset.

Network disconnect when in sleep mode

Hi all.
Since I've installed Mountain Lion, any time the computer goes into sleep mode, networking do the same: I cannot download files, when the computer wakeup I have to wait the reconnection before being able to use mail, safari or ather network stuff.
I did not find any option to set, telling the computer waht to do when in sleep mode.
WIth Lion and preceding OsX this was not an issue.
Is there anything I can do?
Thanks.
Federico.

Hi,
Yes, clear "Allow the computer to turn off this device to save power" in the properties of network adapter\Power management as mentioned in the link provided by arnavsharma, and check if the issue persists.
Yolanda Zhu
TechNet Community Support

Lion causes iMac fan noise during sleep mode

Ever since upgrading to Lion, my iMac's (early 2009 model) fan will randomly go into high speed mode (very loud) in the middle of the night when the iMac is in sleep mode. This seems to happen more often if I manually put the iMac into sleep rather than letting it automatically go into sleep mode as defined in the Energy Saver settings.
Anyone else experiencing this? I posted a feedback report (http://www.apple.com/feedback/macosx.html) so I hope Apple can fix this soon.
Eric

Hi Mendl,
Ok, what I discovered after running the AHT test, long version, was that the test doesn't see the actual failure I had in a new iMac. It turned out to be what I suspected all along, which was a defective temperature sensor, or more likely a factory assembly issue on that component.
They replaced my computer and now all is well.
Thanks, for reinforcing my suspicions!
Keep up the good work.
enumscrat

I can't seem to get my iMac (late 2009 model) into automatic sleep mode. If I manually put it into sleep I don't have any issues. I used to solve the issue by running "PleaseSleep" application but that doesn't work anymore since Lion.

I can't seem to get my iMac (late 2009 model) into automatic sleep mode. If I manually put it into sleep I don't have any issues.
I used to solve the issue by running "PleaseSleep" application but that doesn't work anymore since Lion. I now want to fix the underlying problem.
I'm not running any weird background processes and in my energy saver settings I've tagged "put the hard disk to sleep when possible:, "allow power button to put computer to sleep" and "automatically reduce brigthness". All pretty standard.
Is there anyone who can give me some pointers ?

Today I solved the same problem for my iMac running Snow Leopard. See https://discussions.apple.com/thread/3008791#15947706. The method may help you, too.
For me it was the DynDNS Updater preventing my iMac from automatically entering sleep mode.
To my knowledge the cause of this sleep problem can only be a peripheral device or a process. So I suggest to first unplug all peripherals and test whether that's the cause. If not, I suggest to terminate one process after another and to test automatic entering of sleep mode after each. Start with user processes; continue with system process if necessary.
At least that's the way I found the offending process. Fortunately, I was able to change the configuration of that process to allow again automatic entering of sleep mode.
Good luck!

What is causing my Mac to crash during the sleep mode?

Hello!
I would to have your help on this situation that i am having for a month or so... Ok... it started about a month ago, I turned it on and all of the sudden, it shut down, then rebooted on its own... (actually it rebooted like 3 or 4 times before running the system) I thought that it was odd. I had my Tech to look over and see what was causing to crash and all... he could not find anything then we all decided to leave it running all time... so we did. a week or two later, it just crashed when i woke the sleep mode and it went on the usual route as crashed and rebooted two or three times before going back to normal.
sound familiar to you guys? after that happened, we turned off the sleep mode and so far, it is doing good... decided not to update the system's Security software because it may have something to cause the mac to crash down...
the mac is 2 x 3 GHz Quad-Core Intel Xeon, 8 Gb 667 MHZ DDR2 FB-DIMM, running on 10.6.8
appreciate your help on this.

One more thing.... it makes weird sounds as well... very high pitch sounds that you hear in movies where UFO flying by while it is doing the rebooting...

Since updating to Lion the iMac won't recognise the external hard drive (maxtor) when waking from sleep mode,

Hi All, Since updating to Lion, my imac won't recognise the ext HDD (Maxtor) when waking from sleep mode, I have tried another port, diisc utility (Ext HDD not listed in here) but nothing works. I now find that I have to restart the imac to get the drive recognised..which is fine until the imac goes into sleep mode then I lose the drive and have to restart etc etc.....anyone suffering same issue. The Ext Drive worked perfectly until the upgrade..

Thanks for this, and apologies for delay in replying...in between seeing your post I backed up the ext hdd to another mac and used the disc utility to erase and repair and then re mounted the ext hdd. OK. I have then tested the ext hdd being recognised when waking from sleep mode a few times and everything appears to be fine. If this doesn't work (long term) I will follow the instructions as you have suggested....
I now have a new problem with my HP printer (Photosmart Plus) which is not being recognised by a new wireless router..Ok whilst the router is switch on and I have reconfigured the printer..but when the router is switched off overnight and then switched back on...I get a 'printer is not connected' message and have to go through the re configure routine all over. I am minded to think this is a router problem as the same issue is happening to my wifes Mac Book Pro (which is only a few weeks old)...any suggestions..

I upgraded to Mountain Lion.Now I have trouble waking it up from sleep mode. Why?

I upgraded to Mountain Lion on my MacBook. I am now having trouble waking it up from sleep mode. Does anyone know why or how to wake it up. I try tapping the space bar, trackpad & other keys. Sometimes I think it's never going to wake up.

I'm not certain but my new MBA 13...when in sleep mode comes back on from a black screen when I simply click on the left mouse button. Also, one time I did a SECURE EMPTY TRASH on files that totalled more than 1GB and it took so long that the fan kept increasing in speed so I pressed on the POWER button and the MBA shut...I was able to boot up with no problem. As a rule, I now only do secured erases for trash bin data totalling 500mb or less...anything above that gets a regular erase (dump).

Would overheating cause G4 to go into Sleep mode?

I recently refurbished my old Power Mac G4 (MDD) with new cooling fans and hard drives, then gave the computer to a friend. He lives in a hot climate, and says that the G4 has recently been going into Sleep mode without warning. When he clicks the mouse to wake it up, it will run for about 1 minute, then go into Sleep mode again. Thankfully, he's not losing any data, since it's just going to Sleep, but obviously this makes the computer less than convenient to use!
Now, let's just say -- theoretically -- that I wasn't entirely sure of myself when installing the new cooling fans (120mm case fan and two 60mm power supply fans), and there is a possibility that the new fans may not be cooling the G4 properly.
Would overheating cause the G4 to go into Sleep mode like this? Or should I be looking for another culprit?
Thanks for any advice.

I lugged the G4 around town to three different computer repair shops, and they all confirmed that I had installed the fans correctly, and all fans were running fine. Of course, this only makes the problem harder to solve.
Furthermore, my friend was using the G4 last night when it was a cool 72 degrees (F) in his apartment, and the computer still forced itself into Sleep mode after just over an hour of use. He was using Final Cut Pro at the time, editing a project spread across two external FireWire hard drives. I just can't imagine this amount of activity overheating the G4, which was my editing workhorse for six years before handing it over to my friend.
When I replaced the cooling fans, I did select new fans with slightly lower airflow than the original fans (which many people have replaced, due to the amount of noise they produce). Any opinions on whether that could be the issue?
_Case fan:_
Original: 151.85 CFM airflow
Replacement: 109.6 CFM airflow
_Power Supply fans:_
Original: 38.1 CFM airflow
Replacement: 26.5 CFM airflow

Caffeine cause Sleep Mode Malfunction in lion !!!

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