Powerbook Ti will occasionally not wake from sleep mode

When I put my powerbook in sleep mode, either it will wake, or it will wake but the screen will be blank. The HD will have turned on, the pulsating light will have turned off, and you can hear the fan running. I'll then have to force shutdown and restart.
So far I have tried:
1. sleeping via the powerbutton and choosing sleep to see if that changes anything
2. to plug in a peripheral via USB
3. to wait it out to see if the screen appears
4. to reset the PMU underneath the keyboard
5. to check to see if my ram was bad
6. to repair disk permissions
7. to repair file systems via fsck -f in terminal
Nothing has worked. Please help anyone. Thanks

ckoeshall: The note you quoted from that article concerns desktop Macs, most or all of which use non-rechargeable PRAM batteries. The internal backup battery in your Tibook is rechargeable, and is responsible for maintaining your time and date settings when both the main battery and the AC adapter are disconnected. It will only last a few minutes under those circumstances, though (it lasts long enough to let you change the main battery or get connected to AC power when your main battery runs down). You haven't mentioned that your time and date settings don't hold (but of course they're lost when you reset PRAM or the PMU), and I'm not aware that a depleted backup battery can cause the wake-from-sleep problem you're experiencing.
To recharge your backup battery just to eliminate it as a possible factor in your problem, remove the main battery and leave the PB connected to AC power for 4-5 hours. It takes much longer to charge the backup battery if the main battery is in place and in need of charging too, because the main battery evidently gets priority.
The fact that you have a third-party main battery probably has nothing at all to do with your problem. By now, I suspect that a large majority of Tibook users are operating with third-party batteries, since Apple no longer sells them.

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Thanks, Gene K
Message was edited by: rimini

rimini,
When you've restored the iPhone, have you tried setting it up as a new phone? This would truly eliminate software as a possibility.
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Active Profiles:
Battery Power                    -1*
AC Power                    -1
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halfdim          1
sms                    1
hibernatefile          /var/vm/sleepimage
gpuswitch          2
disksleep          10
sleep                    0 (imposed by 223)
hibernatemode          3
ttyskeepawake          1
displaysleep          5
acwake                    0
lidwake          1
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Message was edited by: Carolyn Samit

I have a mac mini which will not wake from sleep mode since installing yosemite.

The cursor moves when using a track pad and magic mouse, but I can't click on anything. Also computer always starts in safe mode now.
Am I the only one having this problem. I have sent the error messages to Apple, but have not seen any updates that might address this issue.
I now have to turn off the sleep function which don't seem right to me. Any advice would be appreciated.

Hi ..
See: "If your machine only boots into Safe Mode (Shift key) any of these may be the cause" > ..Step by Step to fix your Mac | Apple Support Communities

Helix 20CG won't wake from sleep mode

Hi
After doing all updates (windows/lenovo) and ensuring latest lenovo power managers are installed, my Helix 20CG will still not wake from sleep mode. This problem has been persistant since the second day I had the computer.
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Brandon

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Level   Date and Time   Source   Event ID   Task Category
Warning   12/13/2014 11:08:12 AM   Microsoft-Windows-DNS-Client   1014   (1014)   Name resolution for the name imap.gmail.com timed out after none of the configured DNS servers responded.
Warning   12/13/2014 10:06:28 AM   Microsoft-Windows-DeviceSetupManager   123   None   The DSM service was delayed by 289 seconds for a driver query/download/install on device 'HID\VID_17EF&PID_6067&MI_02\8&111A4E3A&0&0000'
Warning   12/13/2014 10:01:38 AM   Microsoft-Windows-DeviceSetupManager   123   None   The DSM service was delayed by 205 seconds for a driver query/download/install on device 'HID\VID_17EF&PID_6067&MI_01&COL03\8&12BCEF88&0&0002'
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Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   201   None   A connection to the Windows Metadata and Internet Services (WMIS) could not be established.
Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   201   None   A connection to the Windows Metadata and Internet Services (WMIS) could not be established.
Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   202   None   The Network List Manager reports no connectivity to the internet.
Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   202   None   The Network List Manager reports no connectivity to the internet.
Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   200   None   A connection to the Windows Update service could not be established.
Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   202   None   The Network List Manager reports no connectivity to the internet.
Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   200   None   A connection to the Windows Update service could not be established.
Warning   12/13/2014 11:36:39 AM   Microsoft-Windows-DeviceSetupManager   202   None   The Network List Manager reports no connectivity to the internet.
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Warning   12/13/2014 11:36:24 AM   Microsoft-Windows-Kernel-PnP   219   (212)   The driver \Driver\WUDFRd failed to load for the device ROOT\SYSTEM\0004.
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Thanks!

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Hey everyone,
Has anyone had these problems with their new update as well?
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I am experiencing the same issue with iPhone 3GS. After yesterday update to 3.1.2, it is a bit better in the sense that I can restart the iPhone slightly faster but still getting frozen screen during a call. I will try to call support once more. I don't believe that the problem is solved in the new update.

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