Monitor won't wake from sleep since 10.4.8 update

Since upgrading to 10.4.8 my display (Dell 2405FPW) wouldn't wake up from sleep mode (overnight only) and I'd just get a black screen (although it sounded like the CPU was powering up and working fine) ... but after visiting some Apple discussions I've done some troubleshooting ... and today, the Monitor DID finally wake up from sleep ... but the display was a pixelated mess(!?)
To date I have verified and repaired all permissions. I've zapped the PRAM. I've RESET the SMU and the NVRAM and I have deleted the PowerManagement.plist ... but this problem still persists, and it requires a restart to correct (which is maddening) Could it be an extension conflict? The video card? Power Supply? Sounds like a LOT of ibook and iMac folks are experiencing the very same problem.

Interesting, You, like me, have an undetermined sleep problem and a Dell 2405 FPW monitor with a built in USB 2 hub. Temporarily substitute another monitor to see it the problem persists. Also, did your G5 require a new PCI graphics card?
An ATI Radeon 9600 (PC/MAC Pro) PCI graphics card was installed on mine to handle that large screen Dell. Generally the system works again with a hard restart if it can't wake from sleep--try pushing the tower's front power button for more than 8 seconds and repeat this 8 sec restart if sleep persists. Mine sometimes goes to deep sleep even if the Energy Saver panel shows computer sleep "Never". Since the Dell was designed for a PC the Mac's auto detect mechanism for the sleep state of online monitors may be fooled by something in the design of the Dell monitor--only a theory--my Dell 2405 sometimes goes black and on again with mouse movements even though my sleep corner is turned off. I think I'll try a 24 hours with only my second Sony 17 inch monitor plugged into the card.
Is the USB cable from the Dell USB hub still plugged in? Was your G5 originally equiped with USB 2 ports or did you add a PCI USB 2.0 card? The Dell hub is USB 2.0 and it is logical, maybe even critical, to plug your high speed peripherals and the Dell hub in a USB 2 card while retaining original USB 1.1. ports for your wired keyboard (wireless keyboard might also be a problem) and other powerless (or AC plugged) peripherals--cameras etc.
This may also be a PCI card problem as I had a lesser problems with sleep even before I bought the DEll 2405 FPW and had only PCI SCSI and USB 2 cards from Adaptec. I 'll keep looking for solutions. Post if you find any. For further info see:
http://xlr8yourmac.com/firewire/fwusb_card_deepsleep.html#storytop

Similar Messages

IMac won't wake from sleep since Lion!

Since installing Lion my iMac (intel core 2Duo) won't wake from sleep properly using my wireless keyboard, trackpad or magic mouse! I haven't changed any settings and I have to hold down the power button to force shut down and then restart! Any help?? x

Hi all
Finally went to the Genius Bar to ask the question as nothing has worked. They said I needed to reset my PRAM. I did it (Following these instructions... http://support.apple.com/kb/ht1379 ) and it worked.
So relieved....it was really annoying me.
Hope this helps others with the same issue.
Thanks
Graham

Monitor won't wake from sleep?

I just reinstalled OS 10.4.5 on my Powermac and have the screen saver set to go on after 10 minutes of inactivity. Instead, the monitor (NEC Multisync 95) goes into powersave mode and I can't get it to come back on. I also notice that my optical mouse appears to have gone to sleep also (i.e. the LED doesnt light up when I move it). Any ideas on how to fix this? Thank you very much.
PowerMac G4 AGP Mac OS X (10.4.5) 400Mhz, 448MB ram

Your system has gone to sleep, not to screen-saver mode. In sleep, the mouse LED is off, so moving it will not wake the system. Clicking the mouse or pressing a key should wake it. Screen saver mode is not useful unless you need a picture, or want to require a password to wake. Using "Display Sleep" in the "Energy Saver " preference puts the monitor in a low power mode.

Since upgrading to version 10.8.2 my MacBook Pro won't wake from sleep is her anyway I can fix this?

Since upgrading to version 10.8.2 my MacBook Pro (late 2009) won't wake from sleep is her anyway I can fix this?

> during the entirety of this process the cursor was a "busy" pinwheel/beach ball/whathaveyou for a solid 30 minutes before I turned the computer off with the power button.
All that cursor means is that it is busy trying to do something. You can see if force quitting solves the problem with a simple force quit using command-option-escape. If you are having issues with iCal quitting, sometimes it doesn't always know whether or not it is properly communicating with a particular calendar. This can be a Mobileme issue, or even a phone synchronization issue, or a network issue reaching a shared calendar. Shutting down a machine directly from a cursor is the last step one should try, only after all others have failed. If you have done this in the past, lurking corruption can get worse each time with the directory, and upgrading the system will only enhance any corruption already present. When you restart your Mac, does everything appear to be normal?

MBA won't wake from sleep while connected to VGA Display

Since a few days I'm using a VGA Display connected through the official Apple Mini Displayport - VGA Adapter. However, when I put my MacBook Air to sleep and then close the lid (otherwise closing the lid will just continue on the display). Keeping the monitor attached, it won't wake from sleep anymore. Disconnecting the adapter at that moment won't make any difference. What troubleshooting steps can I make?

I usually...
Take out the charger
take out the battery pack
reinsert the battery pack
Then click the power switch
(if you have low battery I'm sure it would be a good idea to plug in the adapter again

Cinema Display won't wake from sleep

After reading lots in the forums I've concluded lots of people have the same problem that we are mistakenly thinking is specific to a particular monitor or Mac or behaviour.
Problem: Display suddenly does not wake from sleep - incidentally after an OS update and Cuda update.
Hypothesis: This definitely seems like a software problem as I've solved it in so many new ways. (Some people are replacing hardware!) Once fixed, the problem recurs the next time the display goes to sleep. However solutions rarely work a second time.
Solutions:
1. Zapping PRAM fixes it.
2. Deleting all displays preferences fixes it.
3. Safe boot and clear caches may have fixed it.
4. Pulling the Mini DisplayPort cable and blowing on it has fixed it. (I thought it was dusty since it worked. It may have just been pulling the cable.)
5. Deleting a power management preference in System/Library/SystemConfiguration/ fixed it.
6. Moving the power plug from one slot on a power bar to another fixed it. (***!?!)
7. Creating a new user account fixed it.
8. Now I'm stuck.
Please can help me think of a new way to fix it? If I can get it going again, I will simply keep the computer and 2nd display awake forever.

I have a new fix!
8. Launch Magic Bullet Looks app and fiddle with the display settings!!! Woohoo! I got it back again.
As long as the display never goes to sleep and is never unplugged (tried that) I can keep using the monitor. Sadly this means never lettting the new iMac sleep.

Won't Wake From Sleep

I held off from posting this until I'd scoured the boards looking for ideas, but I'm totally out.
Every since I updated to 10.4.8, my MacBook Pro won't wake from sleep. I've tried resetting the SMU and PRAM, enabled and disabled bluetooth device wake from sleep, and installed the latest EFI Firmware update that was just released. I've now narrowed it down to the 10.4.8 and a change in how it handles Expresscards. If I have my NitroAV FW 800 card plugged in during a session, it seems to prevent the MacBook from going to sleep properly. According to various Console messages, the PCI device prevents the computer from going to sleep, and /or places the computer into System Doze instead, from which it won't wake. The sleep light stays fixed and steady, only disappearing if I press the power button (it only reacts to the power button). From there the screen remains dark and all plugged in device fail to respond. I can hear the drive spin back up.
It reacts the same whether or not I eject the card before putting the computer to sleep. This behavior was not present before installing 10.4.8 and having fallen back on a back up of my 10.4.7 install, can say it's not present in the older OS version. I was hoping last night's EFI firmware update would deal with this, but after having installed it and 10.4.8 anew, I'm having the same old results.
If anyone has any new ideas or can direct me toward how I can make sure the folks at Apple see this, I'd greatly appreciate it.
MacBook Pro 2.16 Ghz Core Duo Mac OS X (10.4.8) 2 GB Ram, 7200 rpm HD, NitroAV ExpressCard FW 800

This is a typical console output for these incidents:
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: PCI sleep prevented by AppleFWOHCI (5)
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: PCI sleep prevented by PXS3 (1)
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: hibernate image path: /var/vm/sleepimage
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: sizeof(IOHibernateImageHeader) == 512
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: Opened file /var/vm/sleepimage, size 2147483648, partition base 0xc805000, maxio 400000
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: hibernate image major 14, minor 2, blocksize 512, pollers 3
Nov 2 04:32:04 marlon-rubios-computer kernel[0]: hibernateallocpages flags 00000000, gobbling 0 pages
Nov 2 04:32:08 marlon-rubios-computer kernel[0]: IOBluetoothHCIController::terminateWL .. done
Nov 2 04:32:08 marlon-rubios-computer kernel[0]: System Doze
After that, nothing until I force a restart.

OSX 8.2 new Retina Macbook Pro won't wake from sleep.

Since upgrade to OSX 8.2 new Retina Macbook Pro won't wake from sleep. Tablet lights are on in morning and fans running like crazy, but it requires hard quit and start. Tried with no apps running, no change. It was fine before this last update. Wasn't the recent firmware update supposed to fix this issue? It seems to have started one for me.

I have the exact same problem with my Macbook Pro OS 10.8.4. What happens is: I work on the train, press cmd/alt + eject to put to sleep..pop it in my bag...get home or office... open the lid...and nothing! Battery indicator shows I have plenty of juice but it will not wake up no matter what key I press.
The only difference between use on the train and home/office is the plugging in of peripherals and mains power. It happens sparadicially, perhaps once or twice a week and I always send a 'panic report', so somewhere there will be approx 20 reports of this fault at Apple.

MacbookPro won't wake from sleep and reboots

Since installing Yosemite this morning, my MacbookPro won't wake from sleep, it reboots. I have also had one instance of a black screen forcing a hard reset. On rebooting I get a popup about a graphics error, my machine is a 2013 model so I wouldn't have expected any compatibility issues and it was rock solid until I upgraded the OS, any thoughts?

And this is the panic report I get every time:
Anonymous UUID:       9905C7CD-E37B-88D5-513F-68E0BA0DF20A
Sun Oct 19 16:56:06 2014
*** Panic Report ***
panic(cpu 2 caller 0xffffff802c01e80a): Kernel trap at 0xffffff7fad95fe28, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000000, CR3: 0x000000002f335000, CR4: 0x00000000001626e0
RAX: 0x0000000000000000, RBX: 0xffffff803fd92000, RCX: 0x0000000000000000, RDX: 0x0000000000000000
RSP: 0xffffff80396f3b50, RBP: 0xffffff80396f3bf0, RSI: 0x0000000000000240, RDI: 0xffffff803fd92000
R8: 0x0000000000000000, R9: 0x0000000000000000, R10: 0x000000873104f8f7, R11: 0x00000087306c72ac
R12: 0x0000000000000000, R13: 0x000000000000023e, R14: 0xffffff803fe70000, R15: 0x0000000000000000
RFL: 0x0000000000010293, RIP: 0xffffff7fad95fe28, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000000, Error code: 0x0000000000000002, Fault CPU: 0x2
Backtrace (CPU 2), Frame : Return Address
0xffffff80396f3800 : 0xffffff802bf3a811
0xffffff80396f3880 : 0xffffff802c01e80a
0xffffff80396f3a40 : 0xffffff802c03a443
0xffffff80396f3a60 : 0xffffff7fad95fe28
0xffffff80396f3bf0 : 0xffffff7fada770a2
0xffffff80396f3cb0 : 0xffffff7fad8604a3
0xffffff80396f3d00 : 0xffffff7fad8631be
0xffffff80396f3db0 : 0xffffff7fad8620f2
0xffffff80396f3dc0 : 0xffffff802c4d8008
0xffffff80396f3e20 : 0xffffff7fad862d0b
0xffffff80396f3e50 : 0xffffff802c4c5a03
0xffffff80396f3ee0 : 0xffffff802c4be797
0xffffff80396f3f00 : 0xffffff802bf6be13
0xffffff80396f3fb0 : 0xffffff802c0192c7
      Kernel Extensions in backtrace:
         com.apple.driver.AirPort.Brcm4360(900.19.8)[E6DF5F6D-3476-3BA6-B49B-BAADEC7DF58 0]@0xffffff7fad84e000->0xffffff7fade24fff
            dependency: com.apple.driver.mDNSOffloadUserClient(1.0.1b8)[25CEDABE-0952-309D-AC20-A39DF84 9DFB7]@0xffffff7fad547000
            dependency: com.apple.iokit.IO80211Family(700.52)[13EA5B53-E76C-3F27-A9CA-6D3B59AE6F44]@0xf fffff7fad79b000
            dependency: com.apple.iokit.IOPCIFamily(2.9)[766FC23F-452C-3B74-951C-598BB17BCF06]@0xffffff 7fac724000
            dependency: com.apple.iokit.IONetworkingFamily(3.2)[247581D8-DFC5-3AAE-B079-3D13F5514C2B]@0 xffffff7fad076000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
14A389
Kernel version:
Darwin Kernel Version 14.0.0: Fri Sep 19 00:26:44 PDT 2014; root:xnu-2782.1.97~2/RELEASE_X86_64
Kernel UUID: 89E10306-BC78-3A3B-955C-7C4922577E61
Kernel slide:     0x000000002bc00000
Kernel text base: 0xffffff802be00000
__HIB text base: 0xffffff802bd00000
System model name: MacBookPro10,1 (Mac-C3EC7CD22292981F)
System uptime in nanoseconds: 580633243873
last loaded kext at 247606911965: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7faebab000, size 69632)
last unloaded kext at 307957273457: com.apple.filesystems.msdosfs 1.10 (addr 0xffffff7faebab000, size 61440)
loaded kexts:
com.hzsystems.terminus.driver 4
com.Cycling74.driver.Soundflower 1.6.6
com.bongiovi.DPSReflector 1.0
com.apple.filesystems.exfat 1.4
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.filesystems.autofs 3.0
com.apple.driver.ApplePlatformEnabler 2.1.0d1
com.apple.driver.AGPM 100.14.37
com.apple.driver.X86PlatformShim 1.0.0
com.apple.driver.AudioAUUC 1.70
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.iokit.IOBluetoothSerialManager 4.3.0f10
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleOSXWatchdog 1
com.apple.driver.AppleMikeyDriver 266.5
com.apple.driver.AppleHDA 266.5
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.GeForce 10.0.0
com.apple.driver.AppleIntelHD4000Graphics 10.0.0
com.apple.driver.AppleMCCSControl 1.2.10
com.apple.driver.AppleLPC 1.7.3
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.driver.AppleIntelFramebufferCapri 10.0.0
com.apple.driver.AppleMuxControl 3.7.21
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.0f10
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleThunderboltIP 2.0.2
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.6.5
com.apple.driver.AppleUSBHub 705.4.1
com.apple.driver.AppleSDXC 1.6.5
com.apple.driver.AirPort.Brcm4360 900.19.8
com.apple.driver.AppleAHCIPort 3.0.7
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBXHCI 705.4.14
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 266.5
com.apple.kext.OSvKernDSPLib 1.15
com.apple.iokit.IOAudioFamily 200.6
com.apple.vecLib.kext 1.2.0
com.apple.nvidia.driver.NVDAGK100Hal 10.0.0
com.apple.nvidia.driver.NVDAResman 10.0.0
com.apple.iokit.IOSurface 97
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.AppleHDAController 266.5
com.apple.iokit.IOHDAFamily 266.5
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.driver.AppleSMC 3.1.9
com.apple.iokit.IOAcceleratorFamily2 156.4
com.apple.AppleGraphicsDeviceControl 3.7.21
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.driver.AppleGraphicsControl 3.7.21
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.0f10
com.apple.iokit.IOBluetoothFamily 4.3.0f10
com.apple.driver.IOPlatformPluginFamily 5.8.0d49
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.0
com.apple.driver.AppleUSBMultitouch 245.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.driver.AppleThunderboltDPInAdapter 4.0.6
com.apple.driver.AppleThunderboltDPAdapterFamily 4.0.6
com.apple.driver.AppleThunderboltPCIDownAdapter 2.0.2
com.apple.driver.AppleThunderboltNHI 3.1.7
com.apple.iokit.IOThunderboltFamily 4.2.1
com.apple.iokit.IO80211Family 700.52
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.7.0
com.apple.iokit.IOUSBFamily 705.4.14
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 389.1
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
com.apple.kec.Libm 1
Model: MacBookPro10,1, BootROM MBP101.00EE.B05, 4 processors, Intel Core i7, 2.6 GHz, 8 GB, SMC 2.3f36
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In
Graphics: NVIDIA GeForce GT 650M, NVIDIA GeForce GT 650M, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xEF), Broadcom BCM43xx 1.0 (7.15.124.12.8)
Bluetooth: Version 4.3.0f10 14890, 3 services, 19 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM512E, 500.28 GB
USB Device: Hub
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: Hub
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
Thunderbolt Bus: MacBook Pro, Apple Inc., 23.4

Macbook Pro with Leopard Won't Wake from Sleep

I'm intermittently, but with increased frequency finding my MBP won't wake from sleep. A copy of my log is below. I've snipped out where the log repeats. A common message is the "unknown SIGSEGV code 0". Any ideas what the issue is? How can I go about diagnosing?
9/1/10 2:40:11 PM [0x0-0x1a01a].com.adobe.flash-10.0[269] got type name: Object
9/1/10 2:40:11 PM [0x0-0x1a01a].com.adobe.flash-10.0[269] got type name: Object
9/1/10 2:40:11 PM [0x0-0x1a01a].com.adobe.flash-10.0[269] got type name: Object
9/1/10 2:40:11 PM [0x0-0x1a01a].com.adobe.flash-10.0[269] function findRecords(table:Object,findField:Object,findValue:Object,)
9/1/10 2:40:12 PM [0x0-0x1a01a].com.adobe.flash-10.0[269] CFlashPlayerMDIFrame::LoadFrame
9/1/10 2:40:24 PM kernel unknown SIGSEGV code 0
<SNIP>
9/1/10 3:14:24 PM kernel unknown SIGSEGV code 0
9/1/10 3:14:34 PM Safari[165] * _NSAutoreleaseNoPool(): Object 0x1acad280 of class NSCFString autoreleased with no pool in place - just leaking
Stack: (0x96632f4f 0x9653f432 0x9654d038 0x2d112ea2 0x2d02a511 0x2d04383d 0x2d04386b 0x968a3155 0x968a3012)
<SNIP>
9/1/10 3:14:34 PM Safari[165] * _NSAutoreleaseNoPool(): Object 0x1919b1f0 of class NSCFString autoreleased with no pool in place - just leaking
Stack: (0x96632f4f 0x9653f432 0x966c30c2 0x2d001a20 0x2d027e67 0x2d02a525 0x2d04383d 0x2d04386b 0x968a3155 0x968a3012)
9/1/10 3:14:44 PM kernel unknown SIGSEGV code 0
<SNIP>
9/2/10 5:06:22 AM kernel npvhash=4095
9/2/10 5:06:17 AM com.apple.launchctl.System[2] kern.ipc.maxsockbuf: 8388608 -> 512000

Hi David,
- Have you tried any troubleshooting steps?
You may try the following steps:
1. Reset SMC as per the following article http://support.apple.com/kb/HT3964?viewlocale=en_US. If this does not resolve the issue then go to step 2.
2. Navigate to Macintosh HD/Library/Preferences/System Configuration and remove a file called powermanagement.plist (drag it to trash, might prompt for a password). Restart the mac thereafter. If this does not resolve the issue, boot to safe mode as per http://support.apple.com/kb/ht1455 and check the issue there. If it works there, you will have to remove the following files to check Macintosh HD/Library/StartupItems, HD/Library/Caches and then restart the mac.
Let me know if this works.

My Mac Pro loses network connection after wake from sleep since Yosemite upgrade.

Mac Pro loses network connection after wake from sleep since Yosemite upgrade. Any one have this issue as well. And is there a work around?

Wi-Fi?
Wi-FI connection drops
Wi-Fi Problems in OS X Yosemite
Wi-Fi Problems in OS X Yosemite (2)
Wireless Diagnostics
Also try turning off Bluetooth.
Troubleshooting Wi-Fi issues in OS X
Wireless Connection Problems - Fix
Wireless Connection Problems - Fix (2)
Wireless Connection Problems - Fix (3)
Wireless Connection Problems - Fix (4)

Compter won't wake from sleep mode

My Pavilion 17 notebook computer, purchased in Oct. '13, won't wake from sleep mode; I must shut down and reboot each time. I know this is not due to Windows 8, as I have another Win 8 computer that works normally.

I've done some more experimentation and found a workaround. I had Sleep and the Screensaver both set to Never, and by activating the Screensaver the wake up issue has gone away. This doesn't change the fact that there is an issue with my ATV sleeping when it shouldn't and failing to wake up, but having the screensaver active stops it sleeping in the first place I guess.
It's slightly annoying because I like to have music playing with the description and album art running, and this disappears when the screensaver comes on, but it is better than unplugging the thing every time I use it. Hopefully this will be fixed in the next update, because it only appeared in the last one.

Macbook won't wake from sleep

My macbook won't wake from sleep. I have to power down and restart. I have also noticed that when it is asleep, the sleep indicator light doesn't pulse, it just stays on steady. Could this be a bug in mavericks? I have a Seagate external hard drive that I use for my Time Machine backups that it always connected. But ejecting it before the macbook goes to sleep doesn't seem to solve the problem.
Any advice would be appreciated.

You can access System Logs and other information on the computer's status in Console utility; where there are endless lists of all the processes ongoing in the Mac OS X. There are specific log-out and other automatic items the system will post to such logs.
•OS X: When your Mac doesn't sleep or wake
http://support.apple.com/kb/TS5357
Such articles are helpful in so much as they also have additional links.
Perhaps the computer is not going to sleep. The system logs can tell this.
Regarding power management, sleep, and other activities, have you read through the article about the System Management Controller to see if any of the items listed there can help? They'd take time to go through the list. And the end item is a reset of the SMC, after reading through and troubleshooting from the list.
•Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
A good idea is to make a backup of your content in the computer, to an external hard disk drive, so when or if you end up totally erasing the hard disk drive (to include secure erase one-pass overwrite) and reformat GUID, that an all new system could be installed on there, in part of a larger troubleshooting effort.
Actually, if you have an externally enclosed hard disk drive with its own power supply, (not port power) and then use Carbon Copy Cloner (see Bombich software) to make a bootable clone of your entire system to a large enough external drive capable of booting in OS X, then you could get to the bottom of this issue. While keeping a boot copy of what you already have, because you can run the computer from an external clone.
•Mac Backup - Carbon Copy Cloner:
http://bombich.com/
A good source for external drives that can handle clones
is macsales; or a place to look to compare real details.
The problem could be based in software, or in hardware. Troubleshooting against either possibility is how to resolve this problem. Some models of earlier MacBook & other intel-based Macs do not really like Mavericks; or perhaps like it less than an earlier system it may have shipped with. The earliest like Snow Leopard best.
Anyway, there is a solution but it won't be a one-liner.
I've done some 40 hour days, troubleshooting issues.
Worst problem for me was buying one w/Applecare.
Good luck & happy computing!

Macbook won't wake from sleep - replaced logic board and batteries already

I have a 13" White Macbook on 10.5.5 that occasionally won't wake from sleep. This will happen with nothing plugged into the Macbook except for the AC adapter. I have done the firmware upgrade, reset the SMC, reinstalled Leopard from the DVDs twice, brought it into Genius and had the ram, sleep switch, and the logic board replaced. There are no bluetooth devices attached to the computer.
I've searched the forums but haven't found a definitive answer yet.
Message was edited by: multiphrenic

I've experienced the problem as well. I have the new aluminum macbook with all factory specs and no mods, except that I changed it from smart sleep to the original old mac behavior of instant sleep. It is intermittant and with mine, I've noticed that when the screen is open, the computer appears to be completely off, but when I close the computer the light on the front of the computer comes on. The only resolution I've found so far is to hold the power button for 5 seconds for a hard power down and then push it again--everything works fine.
There is indeed a sudden drop sensor, and in fact, it did happen after I accidentally hit the corner of my mac once on a tv while trying to set it down. That could be the answer...we might have to try disabling that because quite honestly, if I drop my mac while its on, I'm going to be more worried about the screen, the case, even the cute little plastic apple than the hard drive (I have backups galore).

PowerBook won't wake from sleep mode

My PowerBook G4 won't wake from sleep mode. I open the lid and nothing happens. I hold down the power button and nothing happens. I resetted the PMU and it will wake up and I am able to login and then it goes back to sleep mode. What should I do please help? And if my computer is dead, is there any way to retrieve my information saved on the hard drive?

this would happen to me when my battery was dead. you test the battery life? (little button on bottom near battery)
I'd make sure it was plugged in and let it charge for 10 minutes or so. then try restarting it if it doesnt wake up by itself.

Monitor won't wake from sleep since 10.4.8 update

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