Issues logging back in from sleep

Hi, I have a Macbook running Leopard (upgraded from a previous Tiger installation) 10.5.5. Sometimes when I log back in from sleep mode, the screen flickers and the log in box disappears. To get it to reappear so I can log back in, I have to close and open the Macbook again. Sometimes when the log in box disappears, the Macbook stops making any sound whatsoever. Yesterday, the Macbook screen suddenly went black and the hard drive made the usual "waking up from sleep" grinding noises several times in a row. I closed it and after a while, it stopped grinding and rebooted. Any ideas?

Hello,
Try resetting the System Management Controller
Carolyn

Similar Messages

My Macbook Retina doesn't log back in from sleep after typing in the password, have to force shut down

Hi all,
Recently i've been having this problem once in a while (once every few days) that when I opened up my computer from sleep, I typed in my password and clicked enter. After that, it shows that normal grey box thing; normally it logs in after a few seconds, but sometimes i wait for 2 minutes and still it doesn't log in. I sleep it and wake it again, but this time i type the password and i click enter, but nothing happens, i can't click switch user either. At this point my only choice is to force shut down my macbook. This problem is a bit annoying since sometimes i have unsaved work.
Thanks in advance for any reply/ies.

Press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly to restart.
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 the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login 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, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

GE70 Issues on Startup / Resume from Sleep

Ever since I got my laptop back from it's first RMA to fix the fan which had stopped working, I've been having issues with the hard drive. For some reason the packing slip on the first RMA said they also replaced the HDD, which was working fine I though. What happens is that when it's been off for several hours, when I go to turn on the system the BIOS can't find the HDD to boot from. Putting my ear to where the hard drive is I can hear a faint repeating click.
Needless to say this was quite alarming, so I called support. They had me open the back on check the connections and try again. I redid the connections and the problem still persisted. Before he gave me a second RMA I tried once more and to my surprise was able to boot into windows! The tech on the phone advised me to call back for an RMA if the problem came back. It came back later that night, after trying to resume Windows from sleep. The same clicking could be heard from the HDD as windows locked up on me. Further reboots had the same issue. I called back and RMA #2 was issued.
This is where it gets annoying. The tech working on the second RMA called me and said he couldn't recreate the problem, and would be sending that laptop back. Imagine my surprise when after unboxing my laptop and trying to boot it up resulted in the exact same issue I'd sent it in for the second RMA. I've been doing what test I can over the weekend, and so far I've gotten the clicking / not detected on every startup in the morning. It doesn't matter if it's just on battery or plugged in, or no battery and plugged in, the issue persists and the BIOS doesn't see the HDD. If I listen really closely to the HDD though, on startup or resume, and listen for the click to go away, I can then boot into windows and everything seems to run fine.
Needless to say this is especially confusing. If it's not the HDD that's failing then for some reason the laptop isn't getting it the power it needs on startup. It's probably not the AC adapter, or the wall socket / wiring as it still happens on battery only, and it's probably not the battery since it still happened without the battery in. What does that leave us? Motherboard issues perhaps? Maybe a power problem in the Laptop itself? I'm stumped at this point, and not looking forward to a third long RMA period should it (likely) be needed. Hopefully I'll be able to get my hands a good 2.5 inch HDD tomorrow for more testing, but for now I'll post this and see if anyone has encountered something similar or has any ideas.
Thanks in advance.

Searching in Event Viewer has turned up the following entries that coincide with resuming Windows from sleep mode with the mentioned clicking sound.
wuaueng.dll (1148) SUS20ClientDataStore: A request to write to the file "C:\windows\SoftwareDistribution\DataStore\DataStore.edb" at offset 0 (0x0000000000000000) for 32768 (0x00008000) bytes succeeded, but took an abnormally long time (27100 seconds) to be serviced by the OS. This problem is likely due to faulty hardware. Please contact your hardware vendor for further assistance diagnosing the problem.
- Provider
[ Name] ESENT
- EventID 508
[ Qualifiers] 0
Level 3
Task 7
Keywords 0x80000000000000
- TimeCreated
[ SystemTime] 2013-05-10T22:25:38.000000000Z
EventRecordID - 48681
Channel - Application
Computer - <snippy>
Security
- EventData
wuaueng.dll
1148
SUS20ClientDataStore:
"C:\windows\SoftwareDistribution\DataStore\DataStore.edb"
0 (0x0000000000000000)
32768 (0x00008000)
27100
Not entirely sure what it means, but there are log entries for this during the time it was in the hands of the msi tech for RMA #2.
EDIT: Just did a short self-test with HD Sentinel and it found no errors, though it did take over 15 minutes.

External display issues when waking display from sleep

After waking my external display from sleep (the entire Macbook was not asleep, just the external display), the garbled colored dots kept appearing at the top and bottom of the screen, only then for the entire display to go black, then about 5-10 seconds later the images comes back, but with the garbled colored dots at the bottom. It will keep doing this over and over again.
It's only happened once so far, but I seem to remember reading about some issues when waking from sleep with the new unibody Macbooks with regards to external displays. Is this a known issue with these Macbooks?

There have been similar reports. However, not all external displays in combination with a MacBook will exhibit this problem. Thus, it seems either display specific or something that is caused by a cross between one display and a MacBook.
I assume that you are using one of Appe's mini DisplayPort to DVI adapters to connect to the external display. In that case have you installed the latest firmware update for the adapter?

Screen issues when waking up from sleep

Very strange things going on with the screen on my new MBP, it has only occurred on a very few occasions now, after waking up from sleep. I noticed two strange effects happening, not at the same time so I don't know if they are related or not.
1) Sometimes the screen shows a varying brightness pattern at the bottom, I think caused by some of the LEDs from the backlighting having a different brightness then others.
2) Sometimes the entire screen has a blueish hue.
Both issues are fixed when I restart the computer.... anyone know what might be going on...?

Also when it wakes up from sleep the screen flashes, don't think its supposed to do that.
Here is a picture I took with my phones that shows how the screen looks like, notice the difference in brightness in a pattern.
http://img510.imageshack.us/img510/2551/dsc00266oe7.th.jpg

Issues after waking up from sleep, macbook pro

Macbook Pro, retina display, mid 2014, 2.6 GHz i5
Yosemite 10.10.1
This problem started about 4 days ago. If I let my computer sleep for a over about an hour, one start up I have lots of issues. It is hard to explain what it is, so I'll explain what I am capable of still doing. The cursor works as in I can move it, but I cannot click anything. Also there is no "hover over" capabilities, like if I hover over something on the dock it usually won't say the programs name. The windows I had open are still there, but I cannot minimize or close them (as I cannot click).
This started like 4 days ago, I have tried a few fixes. One of which was upgrading to Yosemite, I was running Mavericks when it started. The problems persists. I then talked to someone from apple who suggested a SMC reset, but the issue is still there.
The only way I have been able to "fix it" is if after a start up the problem is there, close the lid for a minute, then open it back up. The issue usually then solves itself.
Any help would be greatly appreciated.

When you have the problem, note the exact time: hour, minute, second.
These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.
Launch the Console 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 and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.
Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.
Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name, may appear in the log. Anonymize before posting.

IMac does not turn back on from sleep mode

Hi all,
I've having a problem sometimes that my iMac won't turn back on after I put it into a sleep mode. This does not happen everytime. After the machine does not turn back on, the only workaround is to unplug the power cable and connect it back. Then I'm able to turn on the iMac. After the machine boots up, and I will get the crash report said that the machine does not turn it off properly.
I tried to reset the SMC before and it did not resolve the problem.
Any idea?

One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, Test for problem in Safe Mode...
PS. Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive
Reboot, test again.
If it only does it in Regular Boot, then it could be some hardware problem like Video card, (Quartz is turned off in Safe Mode), or Airport, or some USB or Firewire device, or 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check the System Preferences>Other Row, for 3rd party Pref Panes.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

Random iMac "back from sleep" beep

Hi...
When my iMac is idle and not asleep, it will randomly give the faint "beep" like it's coming back awake from sleep mode. It will do this every couple minutes, or even a couple times a minute. Any ideas?
Powerbook G4 / Intel iMac 2.0 Mac OS X (10.4.8)

I've never had a Mac make a beep sound when it wakes from sleep. I am not familiar with which you refer.

Crash screen: Random color and on waking up from sleep

I have a Mid-2010 13.3" MacBook Pro, and recently it has been giving me issues. I attempted to upgrade the RAM to 8gb, from the initial 4gb, but it didn't fully work, (the new 2x4gb sticks were at 1333 speed, and the max for a mid-2010 MBP is 1066.) I ran a 2gb and a 4gb stick for a while, (for a total of 6gb, and the MBP would automatically downclock the new 1333 stick to match the old 1066 stick.) then it became unstable and started crashing often after waking up from being closed (asleep.) So I took the 4gb stick out and ran on a 2gb stick until I could retrieve the other 2gb stick (I had left it somewhere,) but the crashing problems continued, and got weirder (It was no longer just a white or black screen on crashing, but I got a light blue, a green, and a dark blue screen when it would crash.
So last night I got my other 2gb stick back, and installed it (bringing it back to the original 4gb,) but it's still crashing. I tried blowing the insides out with compressed air to clear the dust out (including the RAM ports, so that they're clear of dust,) and now I'm getting new crash screen colors. I got a rapidly moving static one (where i could still see the wallpaper, but lots of lines were moving across,) and I got a magenta screen at another crash.
All of these crashes require a hard reboot (holding down the power button) to make the computer start again.
Any idea what's going on? This doesn't seem to be a super common problem. I assume it's RAM related, as I've had this laptop for the last two years without any problem, and within a week of installing a weird RAM configuration, it starts crashing all the time.
Any help would be appreciated muchly, thank you!

I am going to add my problem to this as I believe it fits and may add to the conversation.
I have a MacBook Pro, am using Parallels, and have an issue waking it up from sleep.
Circumstances:
I close the lid and walk away from the device in my office. When I return, (over night or an hour later) I open the lid, and if nothing happens swipe the touchpad or press a key, the power light changes from pulsating to steady. then in less than 15 seconds it goes back to pusating. The display never energizes, only remain black.
I usually try opening and closing several times, and occaisionally that will work. Other times, I hold the power key until I hear the drive halt, then turn it on. The grey screen will display, then blue, then just before it gets to the log in, the screen goes black (not energized) and the light pulsates.
I have tried the PRAM reset and Safe Mode starts with no luck.
*Now the really wierd thing.* I decieded to contact Apple support on line and pay for help (yes that is weird in an of itself for me). As I began the process it came to the part for me to enter my serial number. With the lid open, I turned the MacBook on its side to try to read the number and the screen energized and the password unlock prompt was waiting for me to enter the password.
Observations
I had read where the light sensor could be blocked by dirt or the light in the room was too dim, but I clean the screen and there is plenty of light. Dales Post is the first that I have seen Parallels and the Sudden Motion Sensor. That makes some sense to me because of what happened when I turned it on its side. I have verified that it happens regardless of using Parallels. as teh last time I did it I had closed out of all my VMs and I believe exited Parallels.
I am going to try the deleting the power preferences file and will report back.

Screen remains blacks even after waking up from Sleep mode

Hi,
I've had my Macbook Pro for over a year now and it hasn't given me any problems until recently. The screen would remain black when I open up the laptop to wake it up from sleep mode. There would be no response even when I press random keys. When I close the laptop again, the white light at the bottom right corner lights on (when it's supposed to "breathe" while sleeping). The light goes out when I open up the laptop. The only thing I could do is to restart the computer.
What is the problem? Are there any ways to rectify this?

I am going to add my problem to this as I believe it fits and may add to the conversation.
I have a MacBook Pro, am using Parallels, and have an issue waking it up from sleep.
Circumstances:
I close the lid and walk away from the device in my office. When I return, (over night or an hour later) I open the lid, and if nothing happens swipe the touchpad or press a key, the power light changes from pulsating to steady. then in less than 15 seconds it goes back to pusating. The display never energizes, only remain black.
I usually try opening and closing several times, and occaisionally that will work. Other times, I hold the power key until I hear the drive halt, then turn it on. The grey screen will display, then blue, then just before it gets to the log in, the screen goes black (not energized) and the light pulsates.
I have tried the PRAM reset and Safe Mode starts with no luck.
*Now the really wierd thing.* I decieded to contact Apple support on line and pay for help (yes that is weird in an of itself for me). As I began the process it came to the part for me to enter my serial number. With the lid open, I turned the MacBook on its side to try to read the number and the screen energized and the password unlock prompt was waiting for me to enter the password.
Observations
I had read where the light sensor could be blocked by dirt or the light in the room was too dim, but I clean the screen and there is plenty of light. Dales Post is the first that I have seen Parallels and the Sudden Motion Sensor. That makes some sense to me because of what happened when I turned it on its side. I have verified that it happens regardless of using Parallels. as teh last time I did it I had closed out of all my VMs and I believe exited Parallels.
I am going to try the deleting the power preferences file and will report back.

Mountain lion - wake from sleep - destroys hdd

I upgraded my macbook pro mid 2009 model to mountain lion.
First crash - left my computer for 3 hrs playing music using iTunes. Hdd went to sleep, screen is sleeping as well. I moved my mouse and everything froze. Music stopped. Waited for a minute. Nothing happened. I forced shutdown by holding power button for 5 seconds. Reboot failed because hdd can no longer be detected. (Gray folder with question mark) Not even by the install disk.
I brought it to the service center and they replaced my hdd after i approved it. It works ok then. Reinstalled mountain lion and all my stuff.
Second crash - i left my computer for an hour playing music through Grooveshark. Screen and hdd went to sleep while music still played ok. I moved the mouse to wake from sleep but the screen remained black. I can see the cursor not moving but the music was still playing. I put down the lid and waited for a few seconds before turning it on. Screen was still black except for mouse. Music stopped when i closed the lid. I forced shutdown by holding the power button for 5 seconds. Reboot failed because the hdd cannot be detected. (Gray folderneith question mark) Not even by the install disk.
I'm going to the repair center tomorrow and have it checked again. It's only been a week since i got back from the repair center...
So i was reading about the issues with mountain lion waking from sleep where the hdd has slept as well. But it seems that their hdds were intact and they were able to reboot. Mine however, has left my hdd as a heavy paper weight.
2 things, how do I repair the hdds and use them again? Is the issue caused by waking from sleep with the hdd sleeping as well?
Note that in both occurrences, my mbp was plugged in.
Or is it possible that the 2009 model just can't handle mountain lion?
I'm thinking of using ubuntu to force mount my 2 broken hdds and hopefully recover some of my data though all my important files and documents are in sugarsync and dropbox. (Thank God for online storage!) though this is quite detrimental to teaching...

Repair the Hard Drive and Permissions - Lion/Mountain Lion
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu. Select Restart from the Apple menu.

Update to 10.6.3 and having problems returning from sleep mode

Hi,
Updated yesterday to 10.6.3 and having issues returning the laptop from sleep mode.
I close the lid and the laptop goes to sleep but when opening the laptop I just get a blank screen. I can hear the hard drive start up but nothing is displayed on the screen and the sleep light is constantly on. Have tried various combinations of key presses to get it back but nothing works. I end up powering the laptop off in the end.
Anyone else have this problem? Or know how to resolve it.
I have run daily, weekly, monthly maintenance scripts, cleared system and user cache and repaired disk permission but I'm still getting the issue. I have a Time Machine backup but it dates back a month so I'm reluctant to restore.
Cheers,
Luke

I'm having a similar problem that I may have cracked. My screen is on but the backlight is off (so the image is practically 100% on resume from hibernate. Have you reset the pram and cleared the smc?

10.4.8 Tiger-Wake From Sleep Kernel Panics

I've seen many discussions abound kernel panics and wake-from-sleep issues, but nothing exactly like mine.
Most importantly, mine is a desktop Mac-PowerMac G4, 2 proc, 1.25 GHz.
We are experiencing persistent kernel panic and system crash problems, all of which happen when we try to bring the machine back up from sleep by tapping the keyboard and/or clicking the mouse.
The system responses have included:
• Hard drive and fan spinning up, but no mounting of any USB device (the ZIP 250 drive doesn't whir and the Studio Display remains dark
• Machine wakes up but the display has what can only be described as "pieces" missing from it. Then the kernel panic display happens.
• Mouse pointer moves but activates and affects nothing.
The very last kernel panic was intriguing. The machine woke up and appeared to be fine for a moment but there was the problem when 'chunks' were missing from the display image. Firefox, which had been running when the Mac went to sleep, crashed with no error message-it simply disappeared. Then the kernel panic screen happened. The report generated at restart was thus:
Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x000000000BA73004 PC=0x0000000000019068
Latest crash info for cpu 1:
Exception state (sv=0x2D504280)
PC=0x00019068; MSR=0x00009030; DAR=0x0BA73004; DSISR=0x40000000; LR=0x0001BD1C; R1=0x17463CF0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x01A7CF40 0x0001C62C 0x00022674 0x00022804 0x000A9314
Proceeding back via exception chain:
Exception state (sv=0x2D504280)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x2D5B6780)
PC=0x9004A3B8; MSR=0x0000F030; DAR=0xE0537000; DSISR=0x42000000; LR=0x9004A2FC; R1=0xBFFF70A0; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC
panic(cpu 1 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 1:
Backtrace:
0x00095138 0x00095650 0x00026898 0x000A7E04 0x000AB780
Proceeding back via exception chain:
Exception state (sv=0x2D504280)
PC=0x00019068; MSR=0x00009030; DAR=0x0BA73004; DSISR=0x40000000; LR=0x0001BD1C; R1=0x17463CF0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x01A7CF40 0x0001C62C 0x00022674 0x00022804 0x000A9314
Exception state (sv=0x2D5B6780)
PC=0x9004A3B8; MSR=0x0000F030; DAR=0xE0537000; DSISR=0x42000000; LR=0x9004A2FC; R1=0xBFFF70A0; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 8.8.0: Fri Sep 8 17:18:57 PDT 2006; root:xnu-792.12.6.obj~1/RELEASE_PPC
Model: PowerMac3,6, BootROM 4.6.0f1, 2 processors, PowerPC G4 (3.3), 1.25 GHz, 1 GB
Graphics: ATI Radeon 9000 Pro, ATY,RV250, AGP, 64 MB
Memory Module: DIMM0/J21, 512 MB, DDR SDRAM, PC2700U-25330
Memory Module: DIMM1/J22, 512 MB, DDR SDRAM, PC2700U-25330
Modem: Dash2, UCJ, V.92, 1.0F, APPLE VERSION 2.6.6
Parallel ATA Device: PHILIPS CDD5301
Parallel ATA Device: IBM-IC35L090AVV207-1, 76.69 GB
USB Device: Hub, Up to 12 Mb/sec, 500 mA
USB Device: Hub in Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 500 mA
USB Device: Apple Optical USB Mouse, Fujitsu Component, Up to 1.5 Mb/sec, 100 mA
USB Device: Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 250 mA
USB Device: Generic USB Hub, ALCOR, Up to 12 Mb/sec, 500 mA
USB Device: PTZ-631W, Tablet, Up to 12 Mb/sec, 500 mA
USB Device: USB Zip 250, Iomega, Up to 12 Mb/sec, 500 mA
USB Device: Studio Display, Up to 1.5 Mb/sec, 500 mA
USB Device: OfficeJet 6100 Series, Hewlett-Packard, Up to 12 Mb/sec, 500 mA
While I do have 1GB onboard memory it probably ought to be said that 512MB worth is a memory stick from Crucial that I installed about a week and a half before upgrading from 10.3.9 to 10.4.6. I doubt it's the memory's fault in as much as that period of time was more than enough for the problem to crop up and it ran with no complaints whatsoever until I upgraded to Tiger.
I have also tried removing the ZIP 250 from the system; I have Adobe Version Cue CS2 running and had that turned off; various tips and tricks I found about too numerous to recount. So far the problem is proving intractable.
Does anyone have any idea of what I ought to try next?
Much appreciation in advance,
Sam Klein.
PowerMac G4 Mac OS X (10.4.8) 1.25 GHz, Dual Processor, MDD, 1GB RAM

I recommend having both Alsoft DiskWarrior 3.0.3+ (DW3) and Micromat TechTool Pro version 4.1.x+ (TTP4).
While both can build a new, optimized directory for a disk, I have found there are some disks that only DW3 can repair. DW3 is a "specialist" in disk directories.
Likewise, TTP4 brings a host of useful hardware testing routines that are neither in DW3 nor the Apple Hardware Test. TTP4 also includes an excellent disk defragmenter. Defragmenting is generally not required under Mac OS X 10.3 or later unless you perform an extensive amount of video editing or your disk is nearing full, in which case it can be useful. See Mac OS X: About Disk Optimization. TTP4's Surface Scan is also useful in determining if a disk has developed bad sectors.
If you own neither utility today, the initial investment may seem like a good deal of money, but compared to your data and your time, the cost of these utilities is insignificant in the the long run. I've found their upgrades to be reasonably priced for what they do.
Neither utility is a substitute for a comprehensive Backup and Recovery solution. But I've seen DW3 save more than one person's bacon and the suite of hardware tests and additional functions TTP4 bring to the table make both a worthwhile investment.
If you can only purchase one now, make it DW3. Add TTP4 when funds permit.
Better to have the tools and not need them, than to need them and not have them.
A good mechanic has more than one kind of wrench in their toolbox.
In some ways, you're lucky to have a PowerPC-based Mac: DW3 is not yet available for Intel-based Macs.
Good luck!
Dr. Smoke
Author: Troubleshooting Mac® OS X
Note: The information provided in the link(s) above is freely available. However, because I own The X Lab™, a commercial Web site to which some of these links point, the Apple Discussions Terms of Use require I include the following disclosure statement with this post:
I may receive some form of compensation, financial or otherwise, from my recommendation or link.

System unresponsive after waking from sleep

I've been looking at G4 dual 1.25ghz MDD, which for ages has been impossible to wake from sleep without a hard restart.
Anyway, we've done a complete erase, reformat, re-install 10.4.11 which has cured the problem almost, but not entirely.
The computer now merrily goes to and wakes from sleep, with the display reappearing and the cursor visible and active, but the system is completely unresponsive for about 20 seconds, then it is back to normal. Any attempt to click on a dock icon in that period leads to a bouncing icon, but the application will not launch. After about 10 seconds of this the system will completely stop, except that the cursor will still freely move around the screen.
Checked the ram, zapped PRAM, NVRAM, PRAM battery is not that old and should be ok, but I haven't yet tried with a fresh one, no other USB or FW devices attached, monitor attached by VGA.
Anyone got any other ideas?

Reset PMU ? Although from what you say, it's doesn't look like a PMU problem.
Could be AppleTalk restarting, or something else that stops when you put the Mac to sleep.
Many MDD users had a similar issue when wakin g from sleep, usually with an ADC monitor, rather than VGA or DVI, requiring the PMU reset as the MDD had to power up the monitor too (not on it's own power supply as it is with DVI / VGA) and it would have trouble doing so.

Portege R830-10R: No USB connection after recovery from sleep mode

Good day!
I've been experiencing the following problem on my Portege R830-10R for a long time.
Quite frequently, when it recovers after sleep mode it loses ability to recognize connected USB devices and built-in 3G modem does not work as well.
After some time, like 10-15 minutes of working (or never), the problem becomes solved by itself, but normally it is not the case.
If I try to send the laptop to hibernate or sleep mode again, while this problem is active, lets say, it does not hibernate and hangs on a half way with a black screen - so I have to shut it down manually and then start again.
Normally, the only way to resolve the problem is to restart it, but the issue comes back after next sleep mode.
Has anyone had something like that? Any solution available?

> {quote:title=Paolo30 wrote:}{quote}
> It would be interesting to know, if the same problem could be replicated after the notebook has been recovered.
> I mean you that you should run an system recovery (Toshiba recovery disk or HDD recovery).
> Straight after the system has been recovered, test if USB ports would functions after waking up from sleep mode.
I agree that it may resolve the issue, I tend to see the root of the problem inside the software part.
However, I was curious to know whether it was possible to treat it without recovery - I have a lot of software installed and complete recovery of the laptop to the state as it is now may take several days.
Anyway, great thanks for your help!

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