Does a force shutdown affect subsequent power on?

I've a 2004 G4 Powerbook Aluminium 15" A1046 and I was running iTunes and the screen went dark. The computer was still running but I couldn't get the picture back. Bad inverter I assumed and powered the book down by holding the power switch till if went off.
Now it doesn't switch on again. Did I affect something by forced shutdown?

Are you using the internal battery or power adapter?
Troubleshooting portables that won't turn on or start up
http://support.apple.com/kb/TA25686?viewlocale=en_US
Troubleshooting: My computer won't turn on
http://support.apple.com/kb/TS1367
 Cheers, Tom

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Absolutely. And if they give you a hassle about it at the apple store explain to them quietly that a policy which does not factor into account the damage caused by defective parts is a marketing strategy that is admonishing the proper use of a computer. Furthermore it relegates the status of a consumer to the level of non-interest in furthering the aim of the company.
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I keep getting a forced shutdown and then my mac sends a panic report

my Macbook pro has the lion OS. I have Kaspersky internet security. My mac book pro started acting slow a couple of months ago. Thats why I loaded the Kaspersky to it. It keeps doing a forced shutdown when I am online. I can be just reading news on Yahoo and go to shut down Safari and a screen comes down like someone was pulling a curtain down over the viewing screen. It tells me to hold the power button down until the computer shuts down. I can't do anything else until I shut it down. everything freezes up. When I power back up, it says that a kext releasing a surface root has corrupted the registry.
This only seems to happen when I am online.
What can I do to make this stop? I have contacted apple 3 times on this and they have tried to help by deleting files and emptying trash and it still continues. Ofcorse, it doesn't happen when I am on the phone with the Apple Tech. Just like my old car. Lol!

I want to give an update on my issue.
I deleted my internet security from my Mac Pro and it started acting normal again. It seems that it was the Kaspersky internet security that was causing the problem. After contacting Kaspersky, The agent told me that they were having issues with their older software and he had me download the newest updated security. I'm not quite sure about their answer because updates were installed on a regular basis. Anyway, I will see if this works any better and if not, I won't hesitate to delete the software from my computer. I hope that this will help someone elce. "Thank You Melophage for your help."

MacBook hangs; must force shutdown; still hangs

My MacBook was hung, so I did a forced shutdown (i.e., held down the on/off button). Now it keeps hanging, and I have to keep doing a forced shutdown. The hang occurs in different situations, but I am always left with a totally stuck computer and no option other than a forced shutdown. I restarted in safe mode, thinking I'd try doing a repair with Disk Utility. The machine was not totally hung (i.e. the mouse still moved the cursor), but I couldn't access any menus. So I did a forced shutdown and restarted in normal mode. The hanging recommenced. No progress at all.
All insights welcome. Thank you.

False alarm. I think the problem is the mouse. Yikes!

When booting up, the bluetooth connects and then disconnects with my trackpad 3 or 4 times then i get a gray cover over the desktop that drops from top to bottom then a window that tells me to use the power button to do a forced shutdown.

when booting up, the bluetooth connects and disconnects with my trackpad 3 to 4 times and then i get a gray sheet that drops down from the top to bottom of the desktop then a box in the center that tells me to use the power button to do a forced shutdown. wireless keyboard connects with no problem. went to the apple store and they replaced the bluetooth card. still have the same problem. removed the batteries from the trackpad, strted up and no problem connecting with wireless mouse and keyboard. anyone else experience this?

This could be a software/state problem or a hardware problem. Here are steps to resolve the former.
http://support.apple.com/kb/TS2570
https://discussions.apple.com/docs/DOC-5282

Iphone 4s is working for example can play,music recieve texts ,calls ect but has black screen and have tried the force shutdown method but still can see what im doing on the screen

iphone 4s is working for example can play,music recieve texts ,calls ect but has black screen and have tried the force shutdown method but still can see what im doing on the screen

Did anything happen to prior to your phone acting this way? It sounds like your screen is dead, but it is hard to say without knowing what what the cause.
1) was this a gradual problem? Did the phone screen start dimming a couple months ago and now has degraded or after some event (known or unknown to you), the phone started behaving this way.
2) Can you give more specifics on the problem? You said you have a black screen, but also you can see what you're doing on screen. Is the screen just really dim? Is the screen completely black? Does anything else besides attempting to reset the device cause it to flash white?

IPAD: Forced Shutdown During Update. iPad No Longer Working! Help?

I did a force shutdown during the latest ios6 bug fix update and now my ipad will not work at all. iTunes does not reckognise the device when I connect it to my pc via usb. I have tried everything I can think of to have it start but with no success. It just keeps displaying the Apple logo, then flickering, then showing some text data in white, then goes to a blank black screen, then the logo and all over again. It does shutdown but cannot do a startup to the swipe lock page.
It would be hard to believe one could fully kill an ipad so quickly and easily. Please tell me that this is a fixable problem! Any way to get it to start again?
Thanks!
Manahen

You will need to restore your iPad to factory from recovery mode and connecting to your computer. Connect your iPad to your computer and hold the home and power button down for 15 to 30 seconds until you see the silver apple. Once you see the silver apple let go of the power button but keep holdng the home button until you see the itunes logo and white usb cord. At this point you should be able to restore in itunes.

My macbook pro is frozen on desktop mouse no response i have forced shutdown and restarted 3 times no change. What to do ?

Hi guys and gals
Have not used my macbook pro for couple of months and now she is frozen - opens to wallpaper on desktop of snow leopard but absolutely no response with mouse or track pad . Screen goes blank after 5 mins then the only response is from the power button . When pressed the screen lights up with window asking if i want to shut down or.....enter has no response . Only option is to force shutdown and restart yet this does not resolve issue.....back to square one!!!!
Help???

If you have more than one user account, you must be logged in as an administrator to carry out these instructions.
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. Click Utilities, then Console in the icon grid.
Select the most recent panic log under the heading System Diagnostic Reports on the left. If you don't see that heading, select
View ▹ Show Log List from the menu bar. Post the entire contents of the panic report — the text, please, not a screenshot. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post shutdownStall, spin, or hang reports.

PS3 Won't Turn Off Normally - Only Forced Shutdown Works

Hi team, I've had this problem for a few months now and have absolutely no idea how to fix it. If I try to shut down my PS3 by normal means (holding the power button for a couple of seconds or via the controller) it never actually shuts off, the light just continuously blinks green showing a black screen on the TV whilst the fan etc is still working full-pelt. I thought maybe it was syncing data online or something, and have tried leaving it in this state for over 24 hours a couple of times but it never ends. The only way I can shut down my PS3 these days is by holding the power button for 10 seconds (ie a forced shutdown). I really don't want to have to replace the console as this is the only issue with it and it'll take me forever to find and re-download + update all my games again. One big consequence of this problem is that I can't turn PS+ features such as syncing game saves on as my PS3 never turns off after doing so. Any suggestions would be greatly appreciated. 60GB PS3 FAT - Ugraded with a 1TB drive (Samsung/Seagate 1TB 2.5 inch 5400RPM SATA II Hard Disk)

Yep, tried all of them apart from 'Restore PS3 System' - in fact, I have a feeling that I did try that option when I first discovered the problem. I get a black screen screen after selecting option 3 and have to do the usual forced shutdown - when I restart the PS3 it says the file system is corrupt and it restores it. Problem still presists. I figured out what the issue is though - I had a hard drive connected via a usb switch, after removing my USB devices one by one I'm pretty confident that's what caused it. Thanks for the advice!

Pages is frozen. Unable to force shutdown

Pages is frozen. Unable to force shutdown. Help!

1. Press command + option + esc keys on the keyboard at the same time.
Wait. When the Force Quit window popsup select Pages, if not already and clic Force Quit button
2. If that does not help, press the power button for 6 or more seconds.

Forced Shutdown

I have an iBook G4, running Mac OSX Tiger and its been shutting itself off whilst it's asleep. I'm pretty sure that it's not down to the battery as it's been fully charged. In the System Events Log in the System profiler it records 'ApplePMU::PMU forced shutdown, cause = -127'. I've searched and I can't find any record of this cause or what it means. Does anyone have any idea?

Hi and welcome to Apple Discussions.
Although I could find any reference to the .127, the PMU reference would be the Power Management Unit.
Try resetting the PMU:
1. If the computer is on, turn it off.
2. Reset the power manager by simultaneously pressing and then releasing Shift-Control-Option-Power on the keyboard. Do not press the fn (Function) key while using this combination of keystrokes.
3. Wait 5 seconds.
4. Press the Power button to restart the iBook
Good luck,
Adrian

Apple PMU Forced shutdown message

I just purchased a used Quicksilver 2002 model. Been having some intermittent power shutoff problems (kernel message asking to press power button for several seconds until shutdown), also some kernel issues with a Griffin PowerMate knob (which has since been unplugged)- it has shut down 4 times in the last 20 minutes. System log reports this all 4 times:
Dec 31 18:00:34 localhost kernel[0]: ApplePMU::PMU forced shutdown, cause = -122
Two of the four times, I was installing some software; the other two times it was just sitting there, running nothing but the OS. Interesting that all other time stamps in the system log showed the correct date and time, but this one above is off. Could this be the PMU battery (you know, that little battery that plugs into the motherboard)?

Actually, Patrick, the last four times it has shut down today, it didn't prompt me to shut it down via the power button- it simply blinked off. When it has done that, the message stored in the Console is different from the kind that occurs when a kernel panic happens. The kernel panic log does indeed tell me what hardware might be giving it fits- but that hardware has since been left unplugged. This log entry is different- not associated with any hardware, just the PMU message as mentioned above (there's also no mention of the PMU when I get the kernel panic screen).
The note about testing the memory is a good one though- I'll have to try that. I still tend to think that it is a heat issue or a bad Power Supply- but I can't say for sure yet.
Alas, I can't run the Apple Hardware Test disk- I didn't get any disks with this used machine. I have other AHT disks for other Macs I own, but they're not compatible.
Message was edited by: Terry Smelker

ApplePMU Forced shutdown

Hi Guys,
I am experiencing another problem with my powerbook, it keeps turning off unexpectedly. There is no warning, just a 'click' then the unit is dead.
I have looked in the Console and found eight log entries that read:
'Jan 1 01:00:31 localhost kernel[0]: ApplePMU::PMU forced shutdown, cause = -110'
and one with the error code '-2'
Does anyone know what the 110 code means...? I have the powerbook booked in for service at a ASP in two weeks time (to try and replace the screen!!!), i need the powerbook for a theatre performance next week.
another thing to add to the list!
Many thanks!!!
Regards, Meady

Thanks Ned.
I tried reseting the PMU and P/NVRAM and the PB was fine for a few days. Today i went to power the unit up (on battery) and the sleep light glowed then went out. I tried again and still no joy. Then i plugged in the power adapter and the unit started straight away.
The only thing now is when i unplug the power cord the unit dies. The battery meeter on the battery itself shows full and the icon in the top right shows '94% -(Calculating...)'.
Ahhh!
The date and time keep reseting when i turn the PB off, so I'm guessing the main battery and the backup are dead, or something in the PB.
There are more of these -110 faults now in the console.
Many thanks for your help so far,
Meady

Forced shutdown - effects?

Hey everyone. I've tried to get my teeth into Bootcamp lately and I've been having allsorts of problems requiring the forced shut down of my 3-day old iMac - as in holding down the power button until it turns off, and waiting 10 seconds before turning it back on. I've done this quite a lot, will it damage the componants?
My last iMac, G5 2.0Ghz kept freezing doing every day tasks so I often had to force shut it down, and soon after that, its logic board failed.
I'm slightly worried I'll wreck my new machine in a similar way...

Forced shutdowns firstly can damage the directory of the software on your hard drive, which can then make it difficult to boot into OS X. You probably should boot with your Install DVD1 and in the Utility menu used Disk Utility to Repair your drive, which is the uppermost selection in the left-hand pane of 1st Aid.
Here is a great website on the general care and keeping of a Macintosh computer as well as great troubleshooting advice;
The X Labs

Does a force shutdown affect subsequent power on?

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