Hard drive prevents waking from sleep

I have a mac mini 2011 2.5Ghz core i5 that has developed an unusual problem. I just got a new Lacie D2 quadra external hard drive and if I leave it connected as the backup I cannot get the computer to wake up. When I move the mouse or tap the keyboard, the screen does not turn on, but the hard drive responds and starts lighting up. This has been happening fairly regularly and the only way I can get the computer to start is to unplug the drive (and suffer the improper disk removal warning upon waking up) or hard restart the computer. I don't know if it matters, but in terms of the rest of the system, I have the mini attached to a 30" cinema display via the thunderbolt and dual-link dvi-to-mini displayport adapter. But again, this just started happening upon connecting the new drive and seems to be remedied by disconnecting or turning off the drive before sleep. Any thoughts, other than always make sure its disconnected? Thanks!

Try Ejecting the External HD before sleeping the Mac.
Then see if the Mac Mini will wake and re-mount the External HD.

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How to stop my Time Machine external hard drive preventing iMac from sleeping?

I have a late 2012 iMac, and have discovered that sometimes (I haven't noticed a pattern of when it doesn/doesn't happen) the computer will immediately wake up after I set it to Sleep (Apple Menu>Sleep). Through elimination I have found that it is the the USB 3.0 external hard drive I use as a Time Machine back-up that is the culprit; unplugging it then allows the computer to sleep. If I unplug it, then plug it back in later on, this normally solves the problem for a while, but not forever. This same Hard Drive didn't cause the wake problem on my previous '08 iMac.
A big issue is that when the machine immediately wakes from sleep, the display stays off (until I move the mouse) - this is good from a power saving point of view, but means I don't know if/when the machine is immediately waking from sleep (I have to listen to the fan when setting it to Sleep mode to hear if it has actually woken back up).
I've searched the forums, but can't find another poster with the same problem as myself. Can anyone advise a course for me to pursue to prevent this from happening?
Thanks. Jamie

Hi Frank. Nope, I'm still having the same symptoms; the plugged in external drive (TIme Machine) will wake the machine up a couple of seconds after it winding down when put to into sleep mode. Ejecting the drive and then sleeping the machine works. After plugging it in again to do a Time machine backup, it will allow the computer to sleep soundly for the first few sessions (eg a few days of sleeping, waking, sleeping, waking, etc), but then it will then suddenly start preventing it from sleeping again after a while.
It seems I'm fortunate in my case that the display stays dark (or off?) when the machine has been woken from sleep, but this was actually preventing me from knowing the machine wasn't in fact asleep for quite some time; I only eventually cottoned on because there wasn't any delay when 'waking' my machine (which there normally is). I would then have to carefully listen to the spinning fans to know if in fact it had gone to sleep or not.
So, to summarise, unfortunately no, I haven't solved this yet. If anyone else has a solution, please let us know?
Also, I've noticed occasionally after waking that there is a relatively quiet 'crackle' sound (kind of electrical sounding) from the bottom-right area of the machine. This goes on every so often for about 30mins. I see this is also an issue with other people's late 2012 iMacs, but I've not seen if anyone has a solution to it?

Why does my MacBook Pro not find USB hard drive after waking from sleep?

is this a known issue? i have to manually turn off/on the Mac's Airport to re-establish USB HD connection (or Time Machine won't find it either).

bender73 wrote:
is this a known issue? i have to manually turn off/on the Mac's Airport to re-establish USB HD connection (or Time Machine won't find it either).
I hate to have to tell you this, but backing-up that way is "iffy" and *+not supported by Apple.+* See [Using Time Machine with an Airport Extreme Air Disk|http://web.me.com/pondini/Time_Machine/Airport.html] (or use the link in *User Tips* at the top of this forum).
It sounds like you're using that disk for other things besides your backups; if so, and if you're going to continue backing-up that way, it really should be partitioned so Time Machine has it's own, exclusive space. See #Q1 in the same link.
Time Machine should find it's partition when OSX wakes up; if it doesn't, try a "full reset" of Time Machine, per #A4 in [Time Machine - Troubleshooting|http://web.me.com/pondini/Time_Machine/Troubleshooting.html] (or use the link in *User Tips* at the top of the +Time Machine+ forum).

New hard drive - wake up from sleep gets "stuck"

My original 80GB drive died, so I replaced my primary hard drive with a new 160GB SATA drive. I just created one big partition and I re-installed OS X 10.3.9 and did all the software updates. The only software installed is Adobe CS2, Flash 8 and MS Office.
Now, any time my iMac goes to sleep, when I wake it up, it gets "stuck" for about 2-3 minutes, then the mouse appears and everything is fine. Why is this happening and how can I fix it?
Stats:
iMac G5 17" 1.6GHz
OS X 10.3.9
160GB SATA
2GB RAM
Nothing external connected (no USB or firewire drives etc).

You did go to System Preferences and open Startup Disk and select your new drive as the startup disk, right?
That shouldn't have anything to do with waking from sleep.

Hard lock when waking from sleep

I have a nVidia 9400m MacBook Pro 13 and I've been having consistent problems waking the machine from sleep. Once the computer goes to sleep and I wake it (either by opening the lid or pressing the power button if the lid is open,) I get a display of the last thing the computer was doing, but it beachballs immediately and the only remedy is a hard power cycle. This can sometimes cause the computer to not boot up properly unless I reset the PRAM. The symptoms are that the computer goes to the grey boot screen and the boot chime repeats over and over (albeit somewhat crackly and faint compared to normal.)
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Thanks!

Try Ejecting the External HD before sleeping the Mac.
Then see if the Mac Mini will wake and re-mount the External HD.

MBA not connecting to network drives after waking from sleep

I have been having this problem over the past few days. When my lat 2010 MBA wakes from sleep it will not connect to my NAS. If I try to force it too connect finder will crash and I get the cannot find finder.app error -10801. The only way I have been able to get the MBA working is a hard reset. Then all is well until I close the lid and wake it up at some point.
I was thinking about re-loading SL, but thought I would check here for any thoughts on this problem.
Thanks
Jim

Hi Carl,
This will fix many problems AND clean up a lot of useless stuff.
Get Applejack...
http://www.versiontracker.com/dyn/moreinfo/macosx/19596
After installing, boot holding down CMD+s, then when the prompt shows, type in...
applejack AUTO
Then let it do all 5 of it's things.
One other "Wake" problem... ignore the HW and other symptims because it works in many other situations...
http://docs.info.apple.com/article.html?artnum=304482

Clamshell Mode Prevents Waking from Sleep

I've got a MacBook Pro (Intel, 2.33GHz) running 10.5. Since installing Leopard I've been bumping into periodic issues with trying to wake from sleep while in clamshell mode. (I've got a Samsung LCD monitor and a USB keyboard plugged into it, and most of the time the laptop itself stays closed.) Every now and then--mostly if the laptop has been asleep for a while, say, overnight or all day--it'll refuse to wake up. I've never had one of the kernel panics described in this thread: it just won't wake up, even if I open the laptop, until I unplug the external monitor from the monitor-out socket. Once I unplug the external, the onboard screen comes right on, and I can even re-attach the external monitor and it'll work just fine; but if I close the laptop, I'm back at Square 1 with a comatose computer.
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Try Ejecting the External HD before sleeping the Mac.
Then see if the Mac Mini will wake and re-mount the External HD.

Sonnet eSATA PCIe card prevents waking from sleep mode

Tried 2 x (removing card and then reinstalling). If the MacPro goes into sleep mode with the E4P card installed (v2.1.7 driver), then it will not wake up (mouse, keyboard or power button). Only recourse is power off.
Looks like a new driver required from Sonnet.

A new driver, version 2.1.8b1, is available.
Email Neal via [email protected] to obtain it.
He said that 10 users have already installed it and so far are happy.
Be sure to provide him with feedback in case it needs a little more tweaking.
Sonnet's responsiveness has been great ~/~
Chris
www.wildliferhythms.com

External Hard Drive Fail After Waking from Sleep

Hi,
I've been having this issue for over a year (since upgrading to Lion, and now still persists after upgrading to Mountain Lion), and I haven't been able to find the exact answer I need after searching through the posts here, and on the internet.
I have a 2011 MBP, and after upgrading to Lion last year, I've noticed that my WD external hard drive for the Mac has issues to be recognized after the laptop wakes from sleep. The drive icons are still there on the desktop, and all the files are listed. However, I cannot open any of the files, and Time Machine backup automatically fails.I am able to eject the drives by dragging the icons into the trash can. However, nothing happens if I simply unplug the fire wire 800 cable and re-plug it into the computer after ejecting the drives. I need to reset the external drive by unplugging both the fire wire cable and the power supply, and replug everything.
Aside from being a hampering process after waking from sleep, this is also very stressful on the drive itself, so I would like to fix this. Does anyone know the issue behind this or have a solution? Thanks in advance!

Thanks for this, and apologies for delay in replying...in between seeing your post I backed up the ext hdd to another mac and used the disc utility to erase and repair and then re mounted the ext hdd. OK. I have then tested the ext hdd being recognised when waking from sleep mode a few times and everything appears to be fine. If this doesn't work (long term) I will follow the instructions as you have suggested....
I now have a new problem with my HP printer (Photosmart Plus) which is not being recognised by a new wireless router..Ok whilst the router is switch on and I have reconfigured the printer..but when the router is switched off overnight and then switched back on...I get a 'printer is not connected' message and have to go through the re configure routine all over. I am minded to think this is a router problem as the same issue is happening to my wifes Mac Book Pro (which is only a few weeks old)...any suggestions..

Lose connection to external USB hard drive after waking up from sleep

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May I ask how this happens and is there a solution?
I'm using Paragon NTFS for Mac OS X to read from and write to NTFS format of USB external hard drive.
Thanks!

... I un-ticked the "put hard disks to sleep when possible" option in the Energy Saver panel in the System Preferences, and it seems the problem is solved. will have to sleep and wake up my iMac to further verify if this is the solution ...
Alternative advices are always greatly appreciated!

Since updating to Lion the iMac won't recognise the external hard drive (maxtor) when waking from sleep mode,

Hi All, Since updating to Lion, my imac won't recognise the ext HDD (Maxtor) when waking from sleep mode, I have tried another port, diisc utility (Ext HDD not listed in here) but nothing works. I now find that I have to restart the imac to get the drive recognised..which is fine until the imac goes into sleep mode then I lose the drive and have to restart etc etc.....anyone suffering same issue. The Ext Drive worked perfectly until the upgrade..

Thanks for this, and apologies for delay in replying...in between seeing your post I backed up the ext hdd to another mac and used the disc utility to erase and repair and then re mounted the ext hdd. OK. I have then tested the ext hdd being recognised when waking from sleep mode a few times and everything appears to be fine. If this doesn't work (long term) I will follow the instructions as you have suggested....
I now have a new problem with my HP printer (Photosmart Plus) which is not being recognised by a new wireless router..Ok whilst the router is switch on and I have reconfigured the printer..but when the router is switched off overnight and then switched back on...I get a 'printer is not connected' message and have to go through the re configure routine all over. I am minded to think this is a router problem as the same issue is happening to my wifes Mac Book Pro (which is only a few weeks old)...any suggestions..

External Hard disk unresponsive after waking from sleep

i have an external usb2 drive connected to my 15" mbp. when waking from sleep, the drive is shown as mounted by accessing it gives me the spinning beachball icon and the computer stops responding until i pull out the usb cable from the mbp. it then proceeds to give me a device removal error. the external drive draws power from the usb bus.
other than this one issue the hard drive works perfectly on both ports.

I got home from work today and was forced to hard restart AGAIN. It seems to be happening more and more often now, but maybe that is just me.
My logitech revolution mouse has never caused problems before with a g4 powerbook or g5 tower. The last thing I added was the apple wireless keyboard. I can't imagine it being the problem since it is using an apple product with an apple computer.
I read the link you sent and used Disc Utility to repair disc permissions and received the following warnings:
Repairing permissions for “Macintosh HD”
Warning: SUID file "usr/libexec/load_hdi" has been modified and will not be repaired.
Warning: SUID file "System/Library/PrivateFrameworks/DiskManagement.framework/Versions/A/Resources /DiskManagementTool" has been modified and will not be repaired.
Warning: SUID file "System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/Reso urces/Locum" has been modified and will not be repaired.
Warning: SUID file "System/Library/PrivateFrameworks/Install.framework/Versions/A/Resources/runner " has been modified and will not be repaired.
Warning: SUID file "System/Library/PrivateFrameworks/Admin.framework/Versions/A/Resources/readconf ig" has been modified and will not be repaired.
Warning: SUID file "System/Library/PrivateFrameworks/Admin.framework/Versions/A/Resources/writecon fig" has been modified and will not be repaired.
Warning: SUID file "usr/libexec/authopen" has been modified and will not be repaired.
Warning: SUID file "System/Library/CoreServices/Finder.app/Contents/Resources/OwnerGroupTool" has been modified and will not be repaired.
Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAg ent" has been modified and will not be repaired.
Permissions repair complete
I don't know if that has anything to do with the issue I'm having or not. Help!!!

Drive sound when waking from sleep?

Hi, I am getting a short 2-3 second drive sound when I wake my MBP from sleep. It sounds like it is checking to see if there is a disc in the drive or something. Also might be described as the sound when your first put a disc into the drive(but maybe shorter). Is this normal? And also if it is normal is there a way to stop it from making the noise because I actually find it annoying me, I wake my computer from sleep a lot throughout the day. My friends MBP who bought his just a few months before mine does not make a sound when waking from sleep. Thanks.

They all do. All of them. Yours. Mine. Your friend's. Old PowerBooks. Brand new MBPs. Everything in between.
My friends MBP who bought his just a few months before mine does not make a sound when waking from sleep.
Maybe his optical drive is broken?
Or, more likely, it's not waking up from sleep at all - Energy Saver settings can be used to set the display to sleep before the MBP sleeps - a key press will "wake" the display, but the MBP itself was not asleep, thus no noise from the drive when it the display is reactivated.

Disk drive thrashing after waking from sleep

Apple conundrum - iMac goes from sleepy to grumpy....
At times after waking from sleep mode, my disk drive thrashes for up to 3-5 minutes. The thrashing almost always includes an SSBOD. Then it stops and things seem fine. My iMac is not backing up as I check for the TIme Machine icon activity. I have also checked and disk permissions and keychain ae fine.
Any ideas on what is causing the disk thrashing.... and how to fix it.
Thanks
Bruce

To find out what the Mac is getting grumpy about, open your Activity and check to see what it's doing those first few minutes.
See > Using your Activity Monitor

Can iMac not waking from sleep be caused be a corrupt file

I have had my 27" iMac from July of 2011 (running Montain Lion, 8 GB RAM, 2TB hardrive, 3.4 GHz,Intel i7) for over a year and a half and ever since I bought it, it has had a problem waking from sleep. I can hear the computer running, but when I click the mouse, keyboard, or power button, it stays asleep and I am forced to do a hard shut down. Apple has been trying to fix the issue, but to no success. They have replaced the hard drive, logic board, usb ports, RAM, mouse and keyboard, but it still happens. They finally threw in the towel and are replacing the machine. They offered to transfer all of our files (jpgs, mp3s, docs, videos, etc), but one thought occurred to me... what if the sleep issue is caused by a corrupt file? I highly doubt that is the case, but wonder if any of the experts out here would know better than I.
If we didin't have the data transfered, we would just keep it on an external hard drive instead. But, I would assume that it wouldn't matter if the files were on internal vs. external because either way, the computer would access the files. That being the case, if the sleep issue was caused by a corrupt file, the computer would still access it on the external and the sleep issue would resurface.
So, 2 questions:
Can a corrupt file cause the sleep issue?
If it is true that a corrupt file can cause the sleep issue, would it matter if the corrupt file was accessed from an external drive vs. internal drive?
Thanks so much!
Chris

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether your problem is caused by third-party system modifications that load automatically at startup or login.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode* and log in to the account with the problem. The instructions provided by Apple are as follows:
Shut down your computer, wait 30 seconds, and then hold down the shift key while pressing the power button.
When you see the gray Apple logo, release the shift key.
If you are prompted to log in, type your password, and then hold down the shift key again as you click Log in.
*Note: If FileVault is enabled under OS X 10.7 or later, or if a firmware password is set, or if the boot volume is a software RAID, you can’t boot in safe mode. Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs. The next normal boot may also be somewhat slow.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin. Test while in safe mode. Same problem? After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of the test.

Hard drive prevents waking from sleep

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