HT3964 my imac's display wont come on the computer is runing but the display is blank
my imac 2011 imac display wont come on the computer is running but the sreen is blank
I would first try resetting the SMC:
Intel-based Macs: Resetting the System Management Controller (SMC)
Hope this helps
Similar Messages
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Why does my iMac display keep shutting off? Computer still running in the background. I've tried unplugging and restarting, to no avail. The computer is well out of warranty - about 7-8 years old, running 10.6.8
Checked.... the settings had not been inadvertently changed, but I did move the scroll and reset them back to the original. Hasn't shut off again.... yet. Will re-post with follow-up one way or the other. Thanks.
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I have a VI and an attched .txt data file. Now I want to read the data from the .txt file and display it as an array in the front panel. But the result is not right. Any help?
Attachments:
try2.txt 2 KB
read_array.vi 21 KBThe problem is in the delimiters in your text file. By default, Read From Spreadsheet File.vi expects a tab delimited file. You can specify a delimiter (like a space), but Read From Spreadsheet File.vi has a problem with repeated delimiters: if you specify a single space as a delimiter and Read From Spreadsheet File.vi finds two spaces back-to-back, it stops reading that line. Your file (as I got it from your earlier post) is delimited by 4 spaces.
Here are some of your choices to fix your problem.
1. Change the source file to a tab delimited file. Your VI will then run as is.
2. Change the source file to be delimited by a single space (rather than 4), then wire a string constant containing one space to the delimiter input of Read From Spreadsheet File.vi.
3. Wire a string constant containing 4 spaces to the delimiter input of Read From Spreadsheet File.vi. Then your text file will run as is.
Depending on where your text file comes from (see more comments below), I'd vote for choice 1: a tab delimited text file. It's the most common text output of spreadsheet programs.
Comments for choices 1 and 2: Where does the text file come from? Is it automatically generated or manually generated? Will it be generated multiple times or just once? If it's manually generated or generated just once, you can use any text editor to change 4 spaces to a tab or to a single space. Note: if you want to change it to a tab delimited file, you can't enter a tab directly into a box in the search & replace dialog of many programs like notepad, but you can do a cut and paste. Before you start your search and replace (just in the text window of the editor), press tab. A tab character will be entered. Press Shift-LeftArrow (not Backspace) to highlight the tab character. Press Ctrl-X to cut the tab character. Start your search and replace (Ctrl-H in notepad in Windows 2000). Click into the Find What box. Enter four spaces. Click into the Replace With box. Press Ctrl-V to paste the tab character. And another thing: older versions of notepad don't have search and replace. Use any editor or word processor that does. -
I purchased my iMac used. When I try to update apps in AppStore, the computer automatically fills in the previous owner's email address and it won't let me delete it to enter mine. I have been using my own apple ID and password on this computer for other things without a problem. Any ideas?
Before buying a second-hand computer, you should have run Apple Diagnostics or the Apple Hardware Test, whichever is applicable.
The first thing to do after buying the computer is to erase the internal drive and install a clean copy of OS X. You—not the original owner—must do that. Changes made by Apple over the years have made this seemingly straightforward task very complex.
How you go about it depends on the model, and on whether you already own another Mac. If you're not sure of the model, enter the serial number on this page. Then find the model on this page to see what OS version was originally installed.
It's unsafe, and may be unlawful, to use a computer with software installed by a previous owner.
1. If you don't own another Mac
a. If the machine shipped with OS X 10.4 or 10.5, you need a boxed and shrink-wrapped retail Snow Leopard (OS X 10.6) installation disc from the Apple Store or a reputable reseller—not from eBay or anything of the kind. If the machine is very old and has less than 1 GB of memory, you'll need to add more in order to install 10.6. Preferably, install as much memory as it can take, according to the technical specifications.
b. If the machine shipped with OS X 10.6, you need the installation media that came with it: gray installation discs, or a USB flash drive for a MacBook Air. You should have received the media from the original owner, but if you didn't, order replacements from Apple. A retail disc, or the gray discs from another model, will not work.
To start up from an optical disc or a flash drive, insert it, then restart the computer and hold down the C key at the startup chime. Release the key when you see the gray Apple logo on the screen.
c. If the machine shipped with OS X 10.7 or later, you don't need media. It should start up in Internet Recovery mode when you hold down the key combination option-command-R at the startup chime. Release the keys when you see a spinning globe.
d. Some 2010-2011 models shipped with OS X 10.6 and received a firmware update after 10.7 was released, enabling them to use Internet Recovery. If you have one of those models, you can't reinstall 10.6 even from the original media, and Internet Recovery will not work either without the original owner's Apple ID. In that case, contact Apple Support, or take the machine to an Apple Store or another authorized service provider to have the OS installed.
2. If you do own another Mac
If you already own another Mac that was upgraded in the App Store to the version of OS X that you want to install, and if the new Mac is compatible with it, then you can install it. Use Recovery Disk Assistant to prepare a USB device, then start up the new Mac from it by holding down the C key at the startup chime. Alternatively, if you have a Time Machine backup of OS X 10.7.3 or later on an external hard drive (not a Time Capsule or other network device), you can start from that by holding down the option key and selecting it from the row of icons that appears. Note that if your other Mac was never upgraded in the App Store, you can't use this method.
3. Partition and install OS X
a. If you see a lock screen when trying to start up from installation media or in Recovery mode, then a firmware password was set by the previous owner, or the machine was remotely locked via iCloud. You'll either have to contact the owner or take the machine to an Apple Store or another service provider to be unlocked. You may be asked for proof of ownership.
b. Launch Disk Utility and select the icon of the internal drive—not any of the volume icons nested beneath it. In the Partition tab, select the default options: a GUID partition table with one data volume in Mac OS Extended (Journaled) format. This operation will permanently remove all existing data on the drive.
c. An unusual problem may arise if all the following conditions apply:
OS X 10.7 or later was installed by the previous owner
The startup volume was encrypted with FileVault
You're booted in Recovery mode (that is, not from a 10.6 installation disc)
In that case, you won't be able to unlock the volume or partition the drive without the FileVault password. Ask for guidance or see this discussion.
d. After partitioning, quit Disk Utility and run the OS X Installer. If you're installing a version of OS X acquired from the App Store, you will need the Apple ID and password that you used. When the installation is done, the system will automatically restart into the Setup Assistant, which will prompt you to transfer the data from another Mac, its backups, or from a Windows computer. If you have any data to transfer, this is usually the best time to do it.
e. Run Software Update and install all available system updates from Apple. To upgrade to a major version of OS X newer than 10.6, get it from the Mac App Store. Note that you can't keep an upgraded version that was installed by the original owner. He or she can't legally transfer it to you, and without the Apple ID you won't be able to update it in Software Update or reinstall, if that becomes necessary. The same goes for any App Store products that the previous owner installed—you have to repurchase them.
4. Other issues
a. If the original owner "accepted" the bundled iLife applications (iPhoto, iMovie, and Garage Band) in the App Store so that he or she could update them, then they're irrevocably linked to that Apple ID and you won't be able to download them without buying them. Reportedly, Mac App Store Customer Service has sometimes issued redemption codes for these apps to second owners who asked.
b. If the previous owner didn't deauthorize the computer in the iTunes Store under his Apple ID, you wont be able to authorize it immediately under your ID. In that case, you'll either have to wait up to 90 days or contact iTunes Support.
c. When trying to create a new iCloud account, you might get a failure message: "Account limit reached." Apple imposes a lifetime limit of three iCloud account setups per device. Erasing the device does not reset the limit. You can still use an iCloud account that was created on another device, but you won't be able to create a new one. Contact iCloud Support for more information. The setup limit doesn't apply to Apple ID accounts used for other services, such as the iTunes and Mac App Stores, or iMessage. You can create as many of those accounts as you like. -
My dad has a brand new iMac. If he quits an app, this window closes, but the app won't finish shutting down, Force quitting does not work. Once another app is opened, it will not close either. Now none of the apps on the dock are responding. I asked him to click on the apple, and drop down to "About this Mac", but that wouldn't open either. Any ideas? If I was at his house, I would call Apple Care in a heartbeat, but am home with my sick daughter,,, Thanks!
For starters, have him open Disk Utility in Applications>Utilities, select the volume (the indented listing) and Verify Disk. If it reports any problems, have him try a Safe Boot by holding the Shift key at startup. This boot will take much longer than usual. It's checking and trying to repair the drive directory, if possible. Once in Safe Boot, have him repair Permissions.
For other Disk repair remedies see
http://support.apple.com/kb/TS1417
Also, have him try a PRAM Reset. At the startup chime, hold down CMD-Option-P-R together, listen for two more chimes, total three, then let go to finish booting.
Also, is he running any AV? If so, have him uninstall it. It might be responsible for this behavior. (There are no viruses for OS X.) -
My images will not show in the Finder Pictures folders, but just display as jpeg thumbnails. I have to open each one to see what photo it is. This has just recently started to happen.
I made sure the 'Show Icon Preview' box was checked. This is about all I can do, really, Frank, as i don't know enough about the workings of these machines to start fiddling about.
Strangely the images show as previews in some folders, yet not in others, even though they come from the same sources (my camera and my phone). -
My iMac is able to use my wireless internet from my airport extreme, however, no other devices(iphone, ipod) will connect. The network shows up, but the indicator just spins without ever joining.
I have tried resetting my airport extreme, creating a new network, etc nothing seems to work.I have a feeling you may be stuck in bridge mode there...
Factory reset the Extreme (so we don't second guess later), and re-set up the extreme using iOS5 on your iPhone.
Set up your Wi-Fi network with your iPad, iPhone, iPod touch, or Mac.
http://www.apple.com/airportexpress/features/easy-setup.html -
Hello all.. I hope someone here can help. I recently downloaded some updates to my imac. Since then the computer starts but I get the home screen opening without the logon box. I can't open any programs or files and if I click on the Safari tab it disappears from the dock. I've tried rebooting with no joy.
I contacted technical help at Apple and was told to hold down the ctrl and alt keys with two other keys, I think the S or P keys when powering up. This worked
and the computer seemed fine but now the problem has reappeared. Is there a way to removed downloaded updates from the computer or revert it to an earlier state? Sorry for the long question. Hopefully one of you clever people can help. SimonClntxwhtby wrote:
Hay thank you for your time . I do that every time I know I am online. It says that I am up to date . I have found that I have 10.4.11 version, and that my boot version is 10.6.2, and that my kernel version is 8.11.1.
I have a hard drive icon on my desktop that says 10.6.2....
I use to have iphoto, it doesnt open anymore, it says there is 1.2gigs on that disk.There are many things on here that are the same way. Where do I start?
It's always good to go with one thing at a time and stay focused on that. Let's start with the OS you're running. Click on the Apple menu > About This Mac. What does it say under Mac OS X version ? -
I have an eight year old iMac running OSX 10.6.8 and just installed the latest Flash Player but the audio won't play on the youtube music website. What else do I need to update or install to listen to the music?
just installed the latest Flash Player
Did you uninstall all the previous versions of Adobe Flash Player? Did you repair permissions and restarted your computer after the installation?
Which browser & version are you using? Have you tried other browsers?
Please advise. -
IPHONE 4 + "io6". I am unable to save a photo from another app (for example FACEBOOK) to the Camera Roll. I press & hold photo, window indicates "Save Photo" comes up, I press that option & the window goes away but the photo is not in Camera Roll. Please advice...
Steve750717 did yu notice that the post is 6 months old?
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Our iMac was under warranty when it began freezing and or crashing. I have spent several hours on the phone with a supervisor and had the machine in 2x. We have also had a repair done in our home. The problems persist. We feel apple owes us a new computer. Help!!!
Do you have a written record of your attempts to get it repaired? When you took the machine "in" for repairs, did you take it to an Apple Store or to an Apple Authorized Reseller or Repair Facility, and do you have copies of invoices or statements showing what repairs were made? If the answers are yes, you need to be persistent in attempting to get a new computer. Ask to talk to the supervisor's supervisor to "escalate" the complaint to a higher level. Get copies of all your repair information and send a letter to the Apple Customer Service people in California and ask them for help.
If your iMac was under warranty when the problems started and the problems have not been resolved, your position should be that the problems should still be fixed or the computer replaced even though the warranty may have expired in the interim. Do you live in the US? If yes, your home state has a Consumer Protection agency. File a complaint with them and ask for their assistance in mediating and/or resolving the matter. -
This little circular spinning rainbow is increasingly appearing on my iMac, especially when I have several pages up. Sometimes it freezes or the computer closes all of the screens. Then I need to restart. What is this? Do I need to buy something to clean up my computer?
Model Name: iMac
Model Identifier: iMac9,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.66 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 6 MB
Memory: 2 GB
Bus Speed: 1.07 GHz
Boot ROM Version: IM91.008D.B08
SMC Version (system): 1.36f3
Hardware UUID: 1ECBB6EC-1FA8-5F7C-B44B-F0E0B64C9549 -
I have bought a photoshop elements and have installed it on my MacBookPro. I have just bought an iMac and what to install on this computer as well. The iMac does not have a disc drive. I have copied the file onto a remote hard drive and tried to install but it thinks I have a pirate copy. What can I do?
If you click the link in my first post in this thread, then click "still need help? Contact us" it takes you to a page that looks exactly like the page where you started, but isn't. Select PSE for the program you want help with, click "Activation and Signing In" for the problem area and you will see this:
The gray area below the blue bar is a link to start a chat. -
My mac wont turn on. It is charging and the on light is on when the computer is shut but once I open it the light turns off and the screen is black. I turn it off and then on again and the start up noise goes but it is still black - Help!?
Claire, please post your machine specs as requested. There are some variants of the MBP with specific hardware issues. Example: the older "silver key" MBPs with 2.2Ghz and faster processors can have a defective video chipset that produces a black screen or distorted video. That problem is covered under an Apple program that will fix this at no cost to you if you computer is that model.
Do "About this Mac" from your Apple menu and, in the resulting window, click the "More Info..." button. That launches System Profiler for you. The first screen looks like this:
The second line, "Model Identifier" (or "Machine Model" if you are running OS10.4) precisely identifies your MBP variant. Post that, and include it in your equipment info in your profile for future posts. That means people don't have to ask, and you get faster help that is targeted to your specific model. Saves everybody a bunch of keystrokes and you get better advice. -
I open an HP at Mcdonalds. Firefox loads fine and the bar on the computer shows connected to the network. Firefox does not display the Mcdonalds sign in screen. after several reloads and attempts to connect the Mcdonalds sign on screen will finally display. After sign in everything works fine. I have most current version of FireFox . System is new and on Windows 7 Machine is an HP with i7 processor.
Same version on a thinkpad under XP works fine every time.
Thanks for any advice you can give
Mike WilsonIs that with your own computer via a wireless connection or with a public computer?
If it is your own computer then your security software may be blocking data.
You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
*Press and hold Shift and left-click the Reload button.
*Press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
*Press "Cmd + Shift + R" (MAC)
You can try to clear the cache and the cookies from sites that cause problems.
"Clear the Cache":
*Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
*Tools > Options > Privacy > Cookies: "Show Cookies"
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