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User profile for user: Ben Dunn
Ben Dunn Author
User level: Level 1
15 points

Screensaver not working on new Mac Mini

Hi there,


I see I'm not the only one with this problem, but I bought a new Mac Mini last week and upgraded to 10.8.2 having migrated from the backup of my MBA. One the MBA the screensaver is fine, and if I log out of my main admin account and into a Guest User account, the screensaver works. But in the main admin account, the screensaver won't kick in. I can use Hot Corners to trigger it but that seems to be the only way. Also the computer isn't actually going to sleep, display or hard drive, so it seems it signoring the Energy Saver instructions altogether.


Can anyone help ?




Ben

MacBook Air, Mac OS X (10.7.1)

Posted on Oct 19, 2012 5:06 PM

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8 replies
User profile for user: Linc Davis
Linc Davis
User level: Level 10
209,673 points

Oct 19, 2012 8:42 PM in response to Ben Dunn

Launch the Terminal application in any of the following ways:


☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)


☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.


☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.


Triple-click the line below to select it, then drag or copy the text — do not type it — into the Terminal window and press return:


pmset -g assertions


Post any lines of output that appear below what you entered — the text, please, not a screenshot.

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User profile for user: Ben Dunn
Ben Dunn Author
User level: Level 1
15 points

Oct 20, 2012 1:05 AM in response to Linc Davis

20/10/2012 19:04:22 GMT+

Assertion status system-wide:

PreventUserIdleDisplaySleep 1

CPUBoundAssertion 0

PreventSystemSleep 0

PreventUserIdleSystemSleep 1

ExternalMedia 1

DisableLowPowerBatteryWarnings 0

UserIsActive 0

ApplePushServiceTask 0

BackgroundTask 0



Listed by owning process:

pid 150(coreaudiod): [0x00000001000012d1] 00:11:21 NoIdleSleepAssertion named: "com.apple.audio.'AppleHDAEngineOutputDP:1B,3,1,2:0:{6D1E-0001-01010101}'.noidl esleep"

pid 150(coreaudiod): [0x00000001000012d0] 00:11:21 NoIdleSleepAssertion named: "com.apple.audio.'BoomEngine:0'.noidlesleep"

pid 150(coreaudiod): [0x00000005000012d2] 00:11:21 NoDisplaySleepAssertion named: "com.apple.audio.'AppleHDAEngineOutputDP:1B,3,1,2:0:{6D1E-0001-01010101}'.nodis playsleep"

pid 29(powerd): [0x000000090000012c] 24:21:19 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"



Kernel Assertions: 0x0140

* Kernel Assertion ID = 500

Created At = 01/01/1970 10:03:55 GMT+

Modified At = 19/10/2012 18:55:17 GMT+

Owner ID = 0xffffff80359df000

Level = 255

Assertions Set = None (4)



* Kernel Assertion ID = 501

Created At = 01/01/1970 10:04:01 GMT+

Modified At = 20/10/2012 11:28:55 GMT+

Owner ID = 0xffffff80359eb800

Level = 0

Assertions Set = None (32)



* Kernel Assertion ID = 502

Created At = 01/01/1970 10:04:03 GMT+

Modified At = 20/10/2012 19:04:41 GMT+

Owner ID = 0xffffff8035a1b000

Level = 255

Assertions Set = None (4)



* Kernel Assertion ID = 503

Created At = 19/10/2012 18:54:16 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff803667f000

Level = 255

Assertions Set = None (8)



* Kernel Assertion ID = 504

Created At = 19/10/2012 18:45:01 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff803628c200

Level = 255

Assertions Set = None (8)



* Kernel Assertion ID = 507

Created At = 20/10/2012 19:11:50 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff8035b8a300

Level = 255

Assertions Set = None (128)

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User profile for user: Ben Dunn
Ben Dunn Author
User level: Level 1
15 points

Oct 20, 2012 4:53 PM in response to Ben Dunn

I spoke too soon. It was fine for a couple of hours then I noticed the ascreen just dimmed (which could be the TV rather than the Mac). I tried restarting and the screensaver worked again, but when I play something through iTunes it doesn't go to screensaver. So I tried quitting out of iTunes and suddenly the screensaver works again. Any ideas ?

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User profile for user: Ben Dunn
Ben Dunn Author
User level: Level 1
15 points

Oct 20, 2012 8:25 PM in response to Linc Davis

I've also noticed that the screensaver works with iTunes operational and the screensvaer timer is set to one or two minutes. Anything more and it doesn't work. Therefore just in case there is a difference, here it is set for 2 minutes:


21/10/2012 14:17:04 GMT+

Assertion status system-wide:

PreventUserIdleDisplaySleep 0

PreventSystemSleep 0

PreventUserIdleSystemSleep 0

ExternalMedia 1

DisableLowPowerBatteryWarnings 0

UserIsActive 0

ApplePushServiceTask 0

BackgroundTask 0



Listed by owning process:

pid 29(powerd): [0x000000090000012c] 03:35:34 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"



Kernel Assertions: 0x0140

* Kernel Assertion ID = 500

Created At = 01/01/1970 10:03:51 GMT+

Modified At = 21/10/2012 14:01:26 GMT+

Owner ID = 0xffffff8015f32c00

Level = 0

Assertions Set = None (32)



* Kernel Assertion ID = 501

Created At = 01/01/1970 10:03:51 GMT+

Modified At = 21/10/2012 10:53:45 GMT+

Owner ID = 0xffffff8015ef1000

Level = 255

Assertions Set = None (4)



* Kernel Assertion ID = 502

Created At = 01/01/1970 10:03:52 GMT+

Modified At = 21/10/2012 14:22:44 GMT+

Owner ID = 0xffffff8015efc000

Level = 255

Assertions Set = None (4)



* Kernel Assertion ID = 503

Created At = 21/10/2012 10:43:56 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff8016e7dc00

Level = 255

Assertions Set = None (8)



* Kernel Assertion ID = 504

Created At = 21/10/2012 10:50:04 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff8017130c00

Level = 255

Assertions Set = None (8)



* Kernel Assertion ID = 505

Created At = 21/10/2012 14:15:51 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff8015ff8d00

Level = 255

Assertions Set = None (128)


...and here it is when set for five minutes:


21/10/2012 14:19:07 GMT+

Assertion status system-wide:

PreventUserIdleDisplaySleep 0

PreventSystemSleep 0

PreventUserIdleSystemSleep 0

ExternalMedia 1

DisableLowPowerBatteryWarnings 0

UserIsActive 0

ApplePushServiceTask 0

BackgroundTask 0



Listed by owning process:

pid 29(powerd): [0x000000090000012c] 03:37:36 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"



Kernel Assertions: 0x0140

* Kernel Assertion ID = 500

Created At = 01/01/1970 10:03:51 GMT+

Modified At = 21/10/2012 14:01:26 GMT+

Owner ID = 0xffffff8015f32c00

Level = 0

Assertions Set = None (32)



* Kernel Assertion ID = 501

Created At = 01/01/1970 10:03:51 GMT+

Modified At = 21/10/2012 10:53:45 GMT+

Owner ID = 0xffffff8015ef1000

Level = 255

Assertions Set = None (4)



* Kernel Assertion ID = 502

Created At = 01/01/1970 10:03:52 GMT+

Modified At = 21/10/2012 14:22:44 GMT+

Owner ID = 0xffffff8015efc000

Level = 255

Assertions Set = None (4)



* Kernel Assertion ID = 503

Created At = 21/10/2012 10:43:56 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff8016e7dc00

Level = 255

Assertions Set = None (8)



* Kernel Assertion ID = 504

Created At = 21/10/2012 10:50:04 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff8017130c00

Level = 255

Assertions Set = None (8)



* Kernel Assertion ID = 506

Created At = 21/10/2012 14:25:37 GMT+

Modified At = 01/01/1970 10:00:00 GMT+

Owner ID = 0xffffff8015ff8d00

Level = 255

Assertions Set = None (128)

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Screensaver not working on new Mac Mini

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