Customac (El Capitan) suddenly won't go to sleep anymore!

[Steedy]

All of a sudden my Mac won't go to sleep anymore. Only the display turns off, but the power light remains on. As a bonus, the audio stops working after the display wakes from 'sleep' again.

Actually this problem plays for two weeks or so. I can't recall changing anything, which could cause this. In another topic with a similar problem it was advised to enter the following command into the terminal: pmset -g assertions. I got troubles interpreting the outcomes.
I hope someone can help me on this one. If I read the last line I'm quite convinced something is preventing the computer from sleep.

Any help is appreciated!!





Last login: Sat Mar 5 11:37:50 on console
Joricks-MacPro:~ Jorick$ pmset -g assertions
2016-03-05 11:43:30 +0100
Assertion status system-wide:
BackgroundTask 0
ApplePushServiceTask 0
UserIsActive 1
PreventUserIdleDisplaySleep 0
PreventSystemSleep 1
ExternalMedia 1
PreventUserIdleSystemSleep 1
NetworkClientActive 0
Listed by owning process:
pid 56(powerd): [0x000000030008012c] 00:05:59 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"
pid 227(FAHClient): [0x0000000600010146] 00:05:56 NoIdleSleepAssertion named: "FAHClient"
pid 55(configd): [0x0000001100070182] 00:05:44 DenySystemSleep named: "InternetSharingPreferencePlugin"
pid 464(com.apple.WebKit.Networking): [0x000000510001028c] 00:04:40 PreventUserIdleSystemSleep named: "URLDownload in progress"
pid 105(hidd): [0x000000870009029c] 00:03:46 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"
Timeout will fire in 3569 secs Action=TimeoutActionRelease
Kernel Assertions: 0xc=USB,BT-HID
id=500 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.1d100000 owner=IOUSBHostDevice
id=501 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.1a100000 owner=IOUSBHostDevice
id=502 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14600000 owner=DYMO LabelWriter 450
id=503 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14800000 owner=BRCM20702 Hub
id=504 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14900000 owner=Keyboard Hub
id=505 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14a00000 owner=Ext HDD 1021
id=506 level=255 0x8=BT-HID mod=01/01/70 01:00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleHSBluetoothDevice
id=507 level=255 0x8=BT-HID mod=01/01/70 01:00 description=com.apple.driver.IOBluetoothHIDDriver owner=BNBTrackpadDevice
Idle sleep preventers: IODisplayWrangler

 

[aopisa]

All of a sudden my Mac won't go to sleep anymore. Only the display turns off, but the power light remains on. As a bonus, the audio stops working after the display wakes from 'sleep' again.

Actually this problem plays for two weeks or so. I can't recall changing anything, which could cause this. In another topic with a similar problem it was advised to enter the following command into the terminal: pmset -g assertions. I got troubles interpreting the outcomes.
I hope someone can help me on this one. If I read the last line I'm quite convinced something is preventing the computer from sleep.

Any help is appreciated!!







Last login: Sat Mar 5 11:37:50 on console
Joricks-MacPro:~ Jorick$ pmset -g assertions
2016-03-05 11:43:30 +0100
Assertion status system-wide:
BackgroundTask 0
ApplePushServiceTask 0
UserIsActive 1
PreventUserIdleDisplaySleep 0
PreventSystemSleep 1
ExternalMedia 1
PreventUserIdleSystemSleep 1
NetworkClientActive 0
Listed by owning process:
pid 56(powerd): [0x000000030008012c] 00:05:59 ExternalMedia named: "com.apple.powermanagement.externalmediamounted"
pid 227(FAHClient): [0x0000000600010146] 00:05:56 NoIdleSleepAssertion named: "FAHClient"
pid 55(configd): [0x0000001100070182] 00:05:44 DenySystemSleep named: "InternetSharingPreferencePlugin"
pid 464(com.apple.WebKit.Networking): [0x000000510001028c] 00:04:40 PreventUserIdleSystemSleep named: "URLDownload in progress"
pid 105(hidd): [0x000000870009029c] 00:03:46 UserIsActive named: "com.apple.iohideventsystem.queue.tickle"
Timeout will fire in 3569 secs Action=TimeoutActionRelease
Kernel Assertions: 0xc=USB,BT-HID
id=500 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.1d100000 owner=IOUSBHostDevice
id=501 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.1a100000 owner=IOUSBHostDevice
id=502 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14600000 owner=DYMO LabelWriter 450
id=503 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14800000 owner=BRCM20702 Hub
id=504 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14900000 owner=Keyboard Hub
id=505 level=255 0x4=USB mod=01/01/70 01:00 description=com.apple.usb.externaldevice.14a00000 owner=Ext HDD 1021
id=506 level=255 0x8=BT-HID mod=01/01/70 01:00 description=com.apple.driver.IOBluetoothHIDDriver owner=AppleHSBluetoothDevice
id=507 level=255 0x8=BT-HID mod=01/01/70 01:00 description=com.apple.driver.IOBluetoothHIDDriver owner=BNBTrackpadDevice
Idle sleep preventers: IODisplayWrangler

I had the same problem recently. I thought I had not done anything to change my system, but suddenly sleep stopped working.

For some reason my wireless printer would no longer connect to my system. I ran a report on the printer, typed the printer IP address into my browser, the printer reconnected with the Hack and I discovered by accident that sleep/wake was working again.

I am not saying that this is your problem, but I never thought of associating that type of issue affecting the sleep cycle on my computer. I discovered by accident that sleep was working again and had to work my way back to think of what I did that may have affected it. I almost did not remember that I even messed with my printer.

 

[Steedy]

Thanks for the reply!

Deleting the printers from the printer's list en removing any cables unfortunately didn't solve the problem.

Any other suggestions are highly appreciated!