Why does my intel iMac not shut down properly?

On Shutdown, the screen goes black, appears to be shut down, but start button will not start unless you hold it in for several seconds. After machine boots messages says not shut down properly. Does this everytime. Has done it since it was new a year ago. the screen is black, but the button will not start the machine unless you hold it down, then you get the message. Have never seen anything like this. It is as if the machine thinks it is still running.

I'm not sure that a normal shutdown followed by turning off a power strip will reset the SMC. Power strips just switch off the "hot" leg of the power but do not interrupt the "cold" (neutral) leg or the "earth" (ground) connections. It may be that the SMC senses the cold-to-ground path or something like that to do a reset.
It may also be that the Mac hasn't actually shut down completely when you switch off the strip. You might try waiting a minute or two before doing that to see if it makes a difference, or listening carefully for any noises coming from the Mac after the menu shutdown before hitting the power strip switch.
I sometimes use an old veterinary stethoscope to listen for sounds coming from Macs for troubleshooting purposes (although never yet with a MacPro) & have noticed that the screen goes dark a little before everything else is fully shut down.

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IMac not shutting down properly

When I try to shut down my iMac, it the screen disappears except for the cursor and never completes a full shut down.

Dont forget to close this Discussion.
Push---
This solved my question -
Nick

Why does my iMac not shut down when I try to shut it down?

Wh does my iMac not shut down, or restart when I try to do either. It just sits there with the little loading circle continuously moving. The only way I can shut it down is if I hold down the power button to shut it down. Can anyone tell me why this is?
Thanks!

Open your Activity Monitor and check to see what is running?
If there is some important Process running, then it is better to wait until it has finished instead of cutting the power and corrupting who knows what?
If there is nothing important running, then follow the instructions in the link below for resetting the SMC.
Intel-based Macs: Resetting the System Management Controller (SMC)

Why does my Macbook Pro keep shutting down during installation of OSX Mountain Lion?

Why does my Macbook Pro keep shutting down during installation of OSX Mountain Lion?

Hmm, good luck then!
I'm pretty much exactly on the opposite side of the planet, but I've been to Vermont and remember its rural beauty well. However, I can't imagine you having the only Internet connection within a reasonable radius (where "neighbors" hanging off the same ISP don't count). Uh, that note only if your wired connection to the router produces no good result, either...

Why does my mac book keep shutting down? I mean it's on and then off suddenly

Why does my mac book keep shutting down? I mean it's on and then off suddenly

Do any informative dialogs appear after you restart it?
Power or other problems related to unexpected system sleep, shutdown, lights or fans call for an SMC reset. Read all the steps.
Before Resetting the SMC
Try each of the following steps in this order before you reset the SMC. Test the issue after completing each troubleshooting step to determine if the issue still occurs.
Press Command + Option + Escape to force quit any application that is not responding.
Put your Mac to sleep by choosing the Apple () menu from the upper-left menu bar and then choosing Sleep. Wake the computer after it has gone to sleep.
Restart your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Restart.
Shut down your Mac by choosing the Apple () menu from the upper-left menu bar and then choosing Shut Down.
Resetting the SMC on Mac portables with a battery you can remove
Shut down the computer.
Disconnect the MagSafe power adapter from the computer, if it's connected.
Remove the battery (to remove the battery - click here: MacBook or MacBook Pro).
Press and hold the power button for 5 seconds.
Release the power button.
Reconnect the battery and MagSafe power adapter.
Press the power button to turn on the computer.
Still having problems? Replace steps 6 and 7 with the following:
Reconnect just the MagSafe power adapter.
Press the power button to turn on the computer,
Then reconnect the battery.
Resetting the SMC on portables with a battery you should not remove on your own
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if it's not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time. The power adapter indicator light will cycle off / on once.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.

TS1363 Why does my I-Tunes keep shutting down every time I try to go to the I-Tunes store?

Why does my I-Tunes keep shutting down every time I try to go to the I-Tunes store?

Hi sidro1!
Here is an article that will help you troubleshoot this issue with your iTunes application:
iTunes for Windows Vista, Windows 7, or Windows 8: Fix unexpected quits or launch issues
http://support.apple.com/kb/ts1717
Thanks for using the Apple Support Communities. Have a good one!
-Braden

Hi. I recently discovered my iMac not shutting down and stalls. Everything seems to disappear except my wallpaper. If I Then go to setting on my Dock the apple sign at the top appears for me to shutdown the second time. I asked one technician's what might

Hi. I recently discovered my iMac not shutting down and stalls. Everything seems to disappear except my wallpaper. If I Then go to setting on my Dock the apple sign at the top appears for me to shutdown the second time. I asked one technician’s what might be the problem. He said that maybe it is Flash Player that runs in the background and avoid the computer to shutdown. I uninstalled Flash Player and the problem was fixed. Now I can’t watch any YouTube videos. Is there something else I can do to use Flash Player again to avoid the shutdown problem?

If YouTube is your only worry, you could instruct it to use HTML5 in stead of Flash:https://www.youtube.com/html5
Be advised though that Flash is used for other web stuff too.

HP DV6 3209 TX does not shut down properly & sometimes very slow

Hi,
I bought a HP Pavilion dv6 3209 tx laptop only one month ago. It provided Win Home Basic. I tried to install Ubuntu 10.10 Maverick along with it, from a pendrive .... I didn't get installed, & at that time, The screen suddenly became colourful with some bizarre symbols !! I shut it down with the power key.
Since then, The home basic became very slow, cpu usage often reaches 100% or very high even while idle, does not shut-down properly.
Then I formatted the hard disk,clean-installed Win 7 Pro (Got it from msdnaa) as well as ubuntu maverick. Now when I restart the system, it shuts down & restarts. But if shut down, then the desktop goes blank, but the fan keeps running, power indicator keeps glowing, system never shuts down till the power key is long-pressed. Also, The CPU usage becomes very high, sometimes it's normal.
I'm confused. Is that any hardware issue ? Do I need to format it again, install xp sp3 & check it if the problems remain ? Please help !!
when the lappy runs in Ubuntu, it's operating speed or CPU usage is normal ..... even when I'm writing this reply from Win 7, everything is normal, but sometimes it's not so smooth...... task manager shows CPU usage as 90 % or more !! I've decided to install xp & then check if the shutdown issue & slowness remains there too.
Windows-Linux-Unix-Mac

SOLUTION :
Open the BIOS (at the starting press f10).
f9 to restor default
Then save and exit (press f10 again)
Restart the computer.
Do this again and set it back to "Enable" that wil help the computer to not over heat.
And now your ROVE will start and sleep correctly.

My iMac never shuts down properly

My iMac never shuts down properly, sometimes it says that i need to force quit my wireless internet but even when i do that it just has the white screen and I have to hold the power button down to turn it off properly, why is this and how can i stop it

Hello,
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 (Users & Groups in later OSX versions)>Login Items window to see if it or something relevant is listed. Or an errant process eating up RAM.
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

Hangouts causes Chromium/Chrome to not shut down properly

Every time I run Chromium or Chrome after logging in, I get an error saying that the program did not shut down properly, and it asks if I would like to restore the windows that were loaded when it did not shut down properly (even though I shut the app down like normal every time). I have narrowed this down to an extension issue, and the problem only being with Hangouts. If I disable the official Hangouts plugin, the problem stops, but enabling it again will cause the problem to start again. I only get this error if I log out of my user account and log back in, or if I reboot my computer. It actually doesn't seem to cause any functional problem, it's just a bit annoying.

@gnunn thanks a lot, that is actually what I was looking for. Temp fix anyway.
Pse wrote:
bulletmark wrote:
This is a bug that has existed with Chrome and Arch for about the last 3 months. Not sure if the bug is within Chrome or GNOME. I just press that Restore button every time but it is damn ugly.
PS Edit: I just remembered somebody, possibly on this forum, suggesting the problem was within systemd or gdm not waiting long enough for Chrome to shut down.
I don't think that's the case here. The OP said he has the problem even when closing Chromium manually.
FWIW, I'm on Gnome 3 and I can confirm that closing the browser using Ctrl+Shift+Q works (i.e. no "restore" option afterwards, all tabs automatically restored) but shutting down Gnome without closing Chromium first causes the "restore" option to appear next time.
Still, Gnome does not close it properly, although disabling the Chrome/ium background operations will fix the problem, it won't address the problem on its own.
I wonder if this is stuff that Gnome devels need to be aware of.

MacBook Pro will not shut down properly

MacBook Pro will not shut down properly. Gray screen appears with spinning gear but will not shut down completely.

If you have more than one user account, these instructions must be carried out as an administrator.
If you have an optical drive, make sure there is no disc in it.
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.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Console in the page that opens.
Step 1
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left.
Enter "BOOT_TIME" (without the quotes) in the search box. Note the timestamps of those log messages, which refer to the times when the system was booted. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Post the messages logged during the time something abnormal was happening. That time might be before or after the boot.
For example, if the problem is a slow startup taking three minutes, post the messages timestamped within three minutes after the boot time, not before. If the problem is a system crash or shutdown failure, post the messages from before the boot time, when the system was about to crash or was failing to shut down. In either case, please include the BOOT_TIME message at the beginning or the end of the log extract.
Post the log text, please, not a screenshot. If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
Important: Some private information, such as your name, may appear in the log. Edit it out by search-and-replace in a text editor before posting.
Step 2
Still in Console, look under System Diagnostic Reports for crash or panic logs, and post the most recent one, if any. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if present (it may not be.) Please don’t post shutdownStall or hang logs — they're very long and not helpful.

Why will my Imac not shut down unless I force it off

I have 10.58 version and lately it is not shut down unless I force it by holding power off. How can I correct this.? Also, I get a continuous spin when I select share folder in my system preference so I can select share internet. I have Verizon mobile broadband.

We'd need to see them posted here to see if it was a problem, but if it isn't repeating in Console now as it's open, hen likely not a problem.
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 Shut Down 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
What happens?

IMac not shutting down

Ok, this is a problem I've been having for a little while now. So back when I had Mavericks, sometimes (and I do stress sometimes) when I tried to shut down my iMac via the apple drop down menu in the left hand corner, nothing would happen. It would act like it was going to shut down, the little pop up box stating it will shut down in 59 seconds with the little box to check if you want to re-open your windows came up and all. But if I click the shut down button on that box, nothing happens. Usually, if I had mail open, as it was trying to shut down the "Mail" icon at the top menu bar would highlight in blue and it would just stay. I could resolve this by simply opening safari and then shut it down while in safari. Then the screen would go gray and it would shut down with no problem. NOW no matter what I do, after clicking shut down on the little prompt box window that pops up after doing as I stated before, nothing happens at all. I can open apps, etc. but not the finder. I have tried every other way of getting it to shut down but it simply will not any other way then pressing the button. I have a late 2013 iMac with the i5 processor, etc. Now, I've seen threads from others about it taking very long and to try and clear "parallels" but in my daemon folder there is nothing and in my Launch folder there are only 3. None of which were mentioned in any of the threads I've seen. In fact, right now, as I type this, I tried shutting it down about 10 mins ago and here I am still using it. So it's not a slow shutdown. It's a not shutting down at all problem. I should mention that A: I did recently delete a user who when logged into their account, had a more frequent encounter with the first problem I mentioned. And B: after turning it off from the button on the back, waiting about 30 seconds and then turning it back on, If I restart it from the menu where it asks you if which user u want, it seems to shut down fine. Anyone else having this problem?

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.
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. Click the Clear Display icon in the toolbar. Then take one of the actions that you're having trouble with. Select any messages that appear in the Console window. Copy them 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 which is irrelevant to 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 Not Shutting Down at Times???

Hey guys, I had an issue with my iMac when i bought it a year ago where it wasn't shutting down and the top menu bar would disappear after you would click shutdown. Then I would click on Safari and the top menu bar would reappear and I could then click on the apple icon to shutdown again. It would work at that point. I took it into Apple and to make a long story short they said they fixed it but when I picked it up they ended up giving me a new computer due to a whole other issue.
So that was back around June. I was still having the same shutdown issue at times with the new machine but not as much. Seemed like it would happen mostly if I quit Safari and shutdown the computer immediately after. If I wait a few extra seconds to shut down after closing Safari it seemed to not give me that problem. Sometimes it still would though.
So now I download Yosemite and now when I shutdown the same thing will happen except when I get the menu bar back and click shutdown nothing happens (the shutdown window does not come up) and I have to hold the power button down in the back to shut it off. I have had to do this about 3 times in the past week.
I have a genius bar appointment tomorrow because I can't take it anymore and I do not want to keep putting it off.
Anybody else have this issue?

Sometimes the system will present a dialog identifying the app that is preventing shutdown. Wait a sufficient amount of time (a few minutes is reasonable) before forcing it to shut down. The dialog may appear, or not.
You can examine system.log to determine the reason it's not shutting down. To do that use the Console app - it's in your Mac's Utilities folder. Time and date-stamped entries immediately following the shutdown request and prior to forcing it to shut down may reveal the cause. Copy and paste them in a reply to this message if you wish. Remove or obscure any information you may consider personal (such as your Mac's name).

My rove does not shut down properly

Recently my HP ENVY Rove 20 Mobile AiO PC has stopped shutting down properly. I select shutdown and the computer powers off the screen and disables the keyboard and mouse, and then stops doing anything. The power button remains illuminated, and I can hear/feel the fan working. I went into setting and turned off the fast restart option, but this has not had any effect on the problem. I did a command prompt also to no avail.
Please help me out here, this is very frustrating I received this machine as a Christmas present so its only a month old.

SOLUTION :
Open the BIOS (at the starting press f10).
f9 to restor default
Then save and exit (press f10 again)
Restart the computer.
Do this again and set it back to "Enable" that wil help the computer to not over heat.
And now your ROVE will start and sleep correctly.

Why does my intel iMac not shut down properly?

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