Computer freezes on shutdown

My friend has an iBook G3 (running latest version of Tiger with all Software Updates) that won't shut down properly: it freezes with only his desktop background on the screen. Anyone have any pointers or ways to help me diagnose the problem with it?
Thanks!

Hi, Robert. to Apple Discussions.
Try booting into Safe Mode. This will take quite awhile longer than a normal startup because it does a file check and repair of the hard disk.
You will see your normal desktop. Once completely started up in Safe Mode, restart normally, and go to Applications > Utilities > Disk Utility. Click on the top hard drive icon in the left sidebar and note the S.M.A.R.T. status at the bottom right of the pane. What does it say?
Select the named boot volume in the left sidebar, and repair permissions on it.
See if a little hard drive maintenance helps things out.

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How do I manually restore a browsing session's tabs? Firefox did not reopen them after a computer freeze and shutdown.

Last night around 4 AM I was browsing in Firefox when my laptop suddenly froze. No mouse or ctl+alt+del responsiveness, nothing, just a frozen unresponsive screen, so after waiting a few moments in vain I forced a shutdown and restart with the power button. I've done this in the past without problems, but this time when I restarted my computer Firefox did not reopen my tabs automatically, or prompt me to restore the session. This is pretty alarming as I have plenty of websites tabbed and kept open permanently that I don't know if I will ever be able to find again. Can anyone give me help in manually restoring a previous session's tabs? I assume this information is stored somewhere on my computer, for Firefox's own use.

I suspect that Firefox doesn't store session history for private windows, but you could try rescuing all the sessionstore files in your currently active personal settings folder (also known as your Firefox profile folder) just in case.
Help > Troubleshooting Information > "Show Folder" button
That should take you to the critical folder. Try copying all sessionstore.js and sessionstore.bak files to a different location (e.g., Documents) where there's no danger of Firefox overwriting them.
If you check the timestamps, can you tell which one has the best chance of having your old windows and tabs? Open that one in a text editor. You may need to turn on text wrapping. If you can remember any text from the URL or title of the page you were viewing, try searching in the text to see whether you can find it. If not, the quest may be futile.

Attempting to open Firefox freezes computer, requiring system shutdown via On/Off button. Opening FF in Safe Mode doesn't help anything.

I was using Firefox just fine as I have been for years, and when I tried to open it today after restarting the machine, it froze the computer almost completely (mouse works, but clicking it anywhere does nothing and ctrl + alt + del does not work). Sometimes even the mouse ceases to work. The only way to react to this is to shut down the system by cutting the energy (On/Off button) as I have waited up to 5 minutes and the system does not recover.
I have tried opening the Safe Mode dialog box (start -> run -> firefox -safe-mode) and choosing the options to disable extensions and toolbars and "reset user preferences to FF defaults" and click "apply and restart" and the computer freezes. If I hit the "continue with Safe Mode" button instead, I get to see the FF screen with a blank tab on it but the computer freezes as well.
I am completely baffled by this sudden problem. I am having to type this from Google Chrome and thus I cannot supply troubleshooting information, sadly. I am sure it is not conflict with antiviruses because I have not installed any new firewalls or antiviruses before the problem started.
I tried downloading Firefox 8.0 and installing it (was previously on 7.0) but it didn't help at all. I also tried running FF with Windows on Safe Mode, but the freeze still happens.
Please help me, my life depends on ReminderFox reminding me of stuff and now I can't access it :,-(. I need FF back ASAP!
Thanks a whole lot!
'''Addendum:''' The freeze is also happening at random even without opening Firefox, it has a chance of happening when I click something. My computer has frozen when I: 1- clicked the "reveal desktop" button to minimize all windows; 2- Attempted to close a tab in Chrome; 3- Clicked "play" in a Youtube video that had been loaded and waiting for some time). It will also almost always freeze when I leave it idle for more than about 10 minutes.
But it will '''guaranteedly''' freeze when trying to open FF, which doesn't happen with any other program.
I think my computer is breaking down. :(

'''Addendum:''' The freeze is also happening at random even without opening Firefox, it has a chance of happening when I click something. My computer has frozen when I: 1- clicked the "reveal desktop" button to minimize all windows; 2- Attempted to close a tab in Chrome; 3- Clicked "play" in a Youtube video that had been loaded and waiting for some time). It will also almost always freeze when I leave it idle for more than about 10 minutes.
But it will '''guaranteedly''' freeze when trying to open FF, which doesn't happen with any other program.
I think my computer is breaking down. :(

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OS X Yosemite 10.10
MacBook Pro (Retina, 15-inch, Early 2013)
Processor 2.4 GHz Intel Core i7
Memory 8 GB 1600 MHz DDR3
Graphics NVIDIA GeForce GT 650M 1024 MB

If the whole computer freezes (can't force quit, have to reboot), then you are looking at an OS bug, a low level driver bug, or defective hardware.
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Given that MacOS 10.10 is a new OS version with a number of unsolved issues, it is most likely a driver or OS bug that you are hitting.

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Hi,
I'm a long time windows user, but I've only had this mac for about 2 weeks so everything is just about new to me. The first week's been no problem but out of the blue during this 2nd weekend my imac has started to freeze on shutdown. I hit shut down, the blue screen comes up, the spinning thing spins and then when the machine should shut down the spinning thing stops. It's completely frozen. I've let it sit like this for up to 45 minutes and it just doesn't work its way out so I have to hold the power button til the machine turns off. I've installed the latest updates and I've ran the disk utility in the utilities folder, but the problem persists.
Like I said before, this is a new computer and I haven't done too much to it. It's connected to a canon pixma mp150 printer via USB, an HP deskjet 8750 printer via a netgear wireless router, a wacom intuos 2 via USB and my ipod via USB. All that I have installed is the camino web browser, open office and x11, AIM, divx, adobe photoshop cs3 and adobe illustrator cs3. That's all the information I have.
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Hi ChiaCheese,
one way to solve your problem might be to create a new account into which you copy everything from your old account. This solved my problem with FileVault:
http://docs.info.apple.com/article.html?artnum=305454
If that's too heavy, have you checked: Finder/Go/Utilities/Disk Utility.app, run the permissions.
You can also run the startup from the CD and check the hard drive.
This page gives good information about what you can do with Mac OS problems:
http://www.smartcomputing.com/editorial/article.asp?article=articles/archive/r10 06/14r06/14r06.asp&guid
I googled some discussion with problems similar to your's:
http://forums.macosxhints.com/archive/index.php/t-41617.html
http://forums.macrumors.com/archive/index.php/t-127905.html
http://forum.insanelymac.com/index.php?s=573add15ab69f13bca29cd52c5eef5ab&showto pic=20139&st=300&p=142776&#entry142776
;J.
iMac6,1 2.16 Ghz Intel Core 2 Duo Mac OS X (10.4.10)

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Machine freeze when shutdown

Hello
First, sorry if I write something wrong cause English is not my first language.
Recently, I just did a full update using "pacman -Syu", but later on when I tried to "shutdown -h now" (even as root), the computer failed to shutdown correctly. All the usual steps like unmounting etc are [DONE] but when "POWER OFF" shows up, it freezes there. I notice that before, when shutdown worked correctly, the cursor blinked before "POWER OFF" and when it showed "POWER OFF", the cursor disappeared and PC turned off. But now, the cursor was still there, but no blink no whatsoever, it just freezes together with the PC.
There are only 2 things that I find notable :
- During the first update, some packages were failed to retrieve so I had to switch to a different mirror
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Please advice, thanks in advance
I'm running Arch 686, if there is anything else you'd like to know, I will provide the details
Last edited by Himari (2011-02-12 12:51:55)

Please continue here: https://bbs.archlinux.org/viewtopic.php?pid=891763
Closing to avoid duplication.

Arch computer freeze (probably somthing with kernel and broadcom-wl)

Finally switch to arch on my main computer but I do have one annoying problem outside of just normal configuration of system.
When using wireless "heavily" (basically download something of a couple MB or surfing the web for a little while) my computer completely freezes and there is no keyboard or mouse contol. I end up haveing to shutdown by holding the powerbutton. This started when I upgraded to 2.6.37 soon after the install. This problem does not happen when on kernel 2.6.34 or whatever was on the live cd. I am using the broadcom-wl driver from tha AUR ([14e4:4329] BCM4321 is my hardware). The last time I had the the crash I checked the everything log and the stuff in the log at the time it happened said this:
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Last edited by Bageer (2011-04-04 23:01:49)

Hi! Two things:
First, if you plan on testing a newer kernel, try the kernel26-ck package from the AUR. It has the newest updates and is easily installed with whichever pacman wrapper you desire (I recommend Yaourt).
Second, I'd check everything in /var/log and dmesg to see if your system is producing any errors. I have a netbook using the wl driver and it work's fine, even when streaming and downloading vanila kernels/iso's. What's the chipset you have?

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2 ddr 512mb 400mhz no dual channel
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Freezing on shutdown

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Computer freezes when I try to import a cd into itunes...

I just recently got a Macbook Pro, and I am having a problem when I try to import a cd that I burned previously. When I put in a cd the computer freezes and the cd won't play and Itunes will not work at all. I have to restart the computer to get anything to work. I burned the cd on a Windows computer, and the cd works fine there. The cd's I am using are brand new with no scratches. I don't think I should have to restart the computer every time I try to import a cd. I hope I can get some help on this matter.

I'm having the same problem, except the CD I last inserted will not eject. It gave me the option to force eject the CD and I did. But the CD didn't come out...and a message popped up saying it was successfully ejected. Now the little icon doesn't come up when I press the eject button and the computer says there is no CD in the drive but the CD is still in there. I have had this Mac for about 4 and 1/2 hours now.

Computer freezes on shutdown

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