OS X Lion 10.7 Sleep Issue

I was going mad with this sleep issue but it did turn out to be both the printer and the fact that I had documents in print queue. Deleted the printer from System Preferences, re-added it and now everything works well. Thanks everyone.

This sleep issue and black screen also happened to me and in my case it was also an offline printer that had a document in queue... Just removed the document and the mac is now working as it should.

Thank you

I was experiencing the same problem... the system would not sleep when lid was closed. Upon opening the lid, the screen would be lit but would immediately go black. Touching either one of the screen dimming controls, F1 or F2, would bring the screen back.

The root cause was an unprinted document still waiting to be processed in a print queue.

I wonder, is there any utility that can scan and report upon sleep-preventing events/processes/whatever and make them visible?

Note: people are saying "the" print queue, as if there is only ever one. If you checked only your default printer and found nothing, look to see whether you have overlooked other printers defined and check all of them (System Preferences -> Hardware -> "Print & Scan").

SOLUTION:

Internet sharing, under "Sharing" is the root of all your problems if your problem is that your computer will not go into sleep mode, manually or clamshell mode. I turned internet sharing on for my iPad that could not get a decent connection from my room...it never worked, but it's caused me to rip my hair out trying to find why my mbp wouldn't got into sleep.

I went through the 12 pages of this thread, without success...Let me summarise:

I made a clean install of Lion, expecting I would get rid of the sleep issue I already had on SL.

I have an Imac, only requesting it to go to sleep after 10 minute of idle.

I don't have little snitch

Didn't have internet sharing or any sharing, but checked every box, reboot, unchecked them & reboot

Resetted smc and PRAM

My console looks quiet

Don't have istats, but checked and updated menumeters

Trashed Macintosh HD > Library > Preferences > SystemConfiguration

Don't have pleasleep but I now consider it

Tried not to open mail

Ran pmset -g -->OK: sleep 10

Don't have a second display

Obviously don't want to try the power cord thing on an Imac

Deleted my canon printer in system panel since it was broken for more than 6 months

Thinking also about a hardware issue (@SirUno). Why a memory module specifically?

Have a canon scanner lide110...

Tried mail-->BAL--> reconstruire (french)

Don't have parallels, don't use facetime

Remote is disabled in preference/security

So....

I consider another clean install, + transferring all previous by myself... One day of work?

I consider buying some RAM , trashing the old one and putting brand new 8Go

Any ideas?

I completed the analysis: After using all the methods above, I checked all application running, and...

Spideroak is the winner!

When I quit spideroak, everything is back to normal.

So that was my personnal experience on the subject

Hope it will help a few of you

Ditto on the documents in the printer queue of an offline printer. Sleeping while having the fan run was an issue that just showed up in the last several days after returning from out-of-town. So glad the fix was so simple. Thanks guys!

Removing the offline printer fixed it for me too. 😀

I SOLVED THE PROBLEM!!!!!!

GO TO "MacintoshHD->Library->Printers"

there are more printers i got, SO delete all printers you dont HAVE (but not PPDs, you cant delete it and this is not the Problem)

so in my case only BROTHER (my printer) and PPDs in this folder, AND Restart!

After RESTART it works for me!!!!

energy saver works for me!

I have now tried so many many things but my 2010 Mac Mini Server still cant go to sleep mode automatically...

I have deleted printers, preferences, reset PRAM, SMC, deleted Hands Off!, deleted iStat menues, shut off all auto awaking apps, flushed my cache and much much more...

Im now thinking of re-installing everything, one app after the other, to see were it goes wrong.

Only problem is, that it takes an enourmus amount of time to set up the mac as I have it running now 😟

Strange enough, it goes fine into sleep mode when I do it manually, but auto is a no go.

Thanks for the pointer jcarpio - my lack of sleep is all fixed! This had been driving me nuts - although there was nothing in my print queue, obviously the driver thought my Canon printer was still printing (even when unplugged). Not connected, but 'In use' in the Lion 'Print & Scan' System Preferences. Zapping the printer there solved the problem.

No more MacBook Pro insomnia!

any ideas?

Juergens-MacBook-Air:~Juergen$ pmset -g assertions

30.11.11 19:08:31 MEZ

Assertion statussystem-wide:

ChargeInhibit 0

PreventUserIdleDisplaySleep 0

PreventUserIdleSystemSleep 0

NoRealPowerSources_debug 0

CPUBoundAssertion 0

EnableIdleSleep 1

PreventSystemSleep 0

DisableInflow 0

DisableLowPowerBatteryWarnings 0

ExternalMedia 0

Kernel Assertions:0x0008

* Kernel AssertionID = 500

Created At= 01.01.70 01:03:48 MEZ

Modified At= 01.01.70 01:00:00 MEZ

Owner ID =0xffffff800b896000

Level = 0

AssertionsSet = None (4)

* Kernel AssertionID = 501

Created At= 01.01.70 01:06:12 MEZ

Modified At= 01.01.70 01:00:00 MEZ

Owner ID =0xffffff800b8f9000

Level = 0

AssertionsSet = None (4)

* Kernel AssertionID = 502

Created At= 01.01.70 01:06:25 MEZ

Modified At= 30.11.11 19:19:35 MEZ

Owner ID =0xffffff800b8f4600

Level = 0

AssertionsSet = None (32)

* Kernel AssertionID = 503

Created At= 30.11.11 19:17:07 MEZ

Modified At= 01.01.70 01:00:00 MEZ

Owner ID =0xffffff800d063000

Level = 255

AssertionsSet = None (8)

I also can't get my MBP (late 2010) to sleep automatically till I deactivate WiFi, also if I log in while pressing shift.

I did various PRAM and SMC resets, there are no print jobs pending, the pmset -g and pmset -g assertions command shows nothing special, there are no sharings, the console is clean and so on.

I tried everything mentioned above and I have really read all the pages and all the posts.

I got 1password, BusyCal, BetterTouchTool, LittleSnitch and Dropbox running in the background (all with the newest updates) but as I said also with pressing shift while logging in there is no chance to get my MBP to sleep.

Closing the lid or clicking on ctrl+eject to get it to sleep works fine instead.

Thanks for your help.

Cheers

Alex

There is one thing in the console I'm not sure about. What is this:

07.12.11 00:01:47,432 com.apple.launchd.peruser.503: (com.apple.SystemUIServer.agent[142]) The following job tried to hijack the service "com.apple.tsm.uiserver" from this job: 0x7ffa51c07a30.anonymous.loginwindow

Cheers

Alex

Ok, so I had this issue and it drove me nuts... Finally I narrowed it down.

After clean installing Lion, I installed applications one-by-one restarting in between and allowing the computer to Idle Sleep between each installation. I narrowed it down to one program:

Alien Skin Exposure 3 ... This is a huge bummer for me as I am a photographer and this is a great Photoshop plugin for mimicing old film stock.

Moreover, I could not manage to completely uninstall this program so I had to clean install again to remove it.

Needless to say this was a lot of work to get my MBP idle sleeping again, but it is a very important feature. Coming back to a dead laptop stinks.

System Info:

Early 2011 MBP 15" 2.2gHz

OS X 10.7.2