My Mac goes on but the screens don't go on

My Mac goes on but screens don't go on , nor are the USB ports not getting power

MacBook Pro: Distorted video or no video issues

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Help me urgently please, impossible to open my Mac book air, sometimes he refuse my login, sometimes he goes further but the screen is never uploaded completely, he goes off before, and he take hours for all that, till than he have been perfect...

I'm having problems to open my Mac, sometimes he refuse my login several times, when I insist he start, very slowly but he never gets to the final, he doesn't upload the screen completely, can you help me? thank you

BTW (speaking as a Dad of 3 daughters in Grad school) if you don't already have and use a DropBox account, or some other similar online "cloud" based backup of your school documents, you should start doing so immediately. By keeping all of your important documents in the Dropbox folder on your computer, you have instant access to them from any other computer (or iPad), should you be w/o your computer while in for repairs (or if, God forbid, it is stolen). It's free for 2 GB of online storage, which is more than enough for a few years worth of Word documents, etc. (If you get other people to sign up via your email "invitation", then Dropbox gives you even more free storage space.) Every time you close a document, it is updated on the Dropbox servers (encrypted), if it is in the Dropbox folder (assuming you give it a few seconds to update before turning off your computer). Do a google search of "Cloud based storage comparisons" to compare the amount of free space each of the competing services give you.

I-Mac is on, but the screen is blank

I turned on my mac today, the initial white screen came on as usual, the start up tone went off, and then the screen went completely blank.
I can hear it is still on, and when I press keys, such as volume, they all sound but I can't see anything?
I've tried switching it off and pressing control, option, p,r ... and that didn't change anything.
I've tried unpluggging it, and pressing the on button for 5 seconds, that didn't work either ...
I don't really know what to do.
I accidently switched on voice over the other day, and although I've got the voice to switch off, I can still hear occasional noises from that, so I don't know if that is an issue?

The screen is black. I intially didn't reply, because after I posted last week, it5 suddenly switched back on again and worked as if there was never a problem (apart from the fact I couldn't adjust the brightness level for a day)...
I have just pulled out the plug (I can't see to shut it down properley) and then started it up again with the OS X DVD, I was holding down C as I switched it on. It stayed on the white "I'm thinking about it screen" for a long time, while the disc was whurring away.
Eventually the screen turned to black again, and the disc stopped making noises. Then it stayed black and the disc started doing ...something again.
Still can't see anything.
Someone suggested that this happens if you leave the computer on too long ...

My Ipad 2 won't reboot. the little circle keeps going round but the buttons don't work. help please.

My Ipad 2 won't reboot. The little circle keeps going round but that's all, it won't boot. nothing happens when I press the button on the top either. Please help.

After you hold the power and home buttons at the SAME time until the Apple Logo appears (ignore the red slider to shut down) then let go of both buttons and you don't need to do anything else. Your iPad will restart all by itself. Just be patient, but leave your iPad alone after the Logo appears.

HT1338 My Mac Pro boots but the screen shows pixels and squares

Is this the grahics card?
I noticed a few weeks ago that my mac pro powered itself off, i didnt really think anything of it at the time as it was in sleep mode as i was away from it for a few hours.
Because i know systems collect dust over time each year i clean them out using either compressed air cans or a mini compressor to blow all the dust out, because it powered off i thought it maybe a build up of dust so i cleaned it out.
Then took it in and booted it up and lal appeared to be ok.
Then about a week ago i booted it up and then the screen went all pixelated and in square sections.
I checked everything is seated correctly and removed the ram, hard drives, graphics card and reseted them, some times it boots ok and then goes to these screens, other times it sits at these on boot.
Any ideas or help would be most appreciated.
Thanks
Trev

sidthebeau,
among the possibilities are a display that no longer works; a GPU that no longer works; and an internal cable between the display and the logic board that no longer works. If you have an external monitor that you can connect to your MacBook Pro, you can find out whether the GPU still works. If it runs well with an external monitor, then you can run the Apple Hardware Test to see if another problem might be responsible. If not, visit your closest Apple store or other qualified service facility for a full diagnostic test.

When my Mac goes to sleep, the speakers don't work

When my Mac goes to sleep, and i wake it up later, the speakers don't work AFTER it is woken up. You can't hear anything at all.
btw.... my serial number is [ Edited by Host ] .....if it helps.

I don't think the post can be edited after 10 or 15 minutes, what madking can do is ask host to remove it from this forum.
In addition to my own post, here are the correct link.
try to reset PRAM and SMC to refresh your macbook hardware behaviour:
http://docs.info.apple.com/article.html?artnum=2238\
http://docs.info.apple.com/article.html?artnum=303319
Good Luck

I just got a new hd tv im using the mac vga port but the screen will not centre?

i selected best display to fit screen and its off centre, there is a large black gap on the left of the screen, the resolution is great but
i cant work like this, i can change it to a lower res to fit the screen but it looks terrible, i could use hdmi but again this is not a great resolution
any ideas ?

Hi Joey,
Is there any settings on the display like undersan, overscan, DVR, PC, etc?
In Display prefs, what is the Underscan setting?
http://apple.stackexchange.com/questions/30527/how-to-solve-mini-displayport-to- hdmi-overscan-problem-part-of-the-screen-is-m

My Mac screen is on but the programs don't open.

My Mac screen is on but the programs don't open.

Hi, not sure which Mac or which version of OSX, but things to try...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc or are running Lion, at least try it from the Safe Boot part onward.

Hey! I don't know if my MacBook Air is frozen, but the screen is gray with the apple logo and an icon below turning round and round as if it's opening, but has been like that for a few days. I've switched it off and then on again several times, still the

Hey
I don't know if my mac book air is frozen, but the screen is gray with the apple logo in the middle of the gray screen, with the 'booting' icon turning round and round. I have switched it off fron both the power and power button on the computer, it goes off, when I put it on, same screen comes on again. Help Please!

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 3
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 4
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 5
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 6
Boot in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in 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.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 6.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 7
Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 8
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 9
Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 10
This step applies only to older Macs (not current models) that have a logic-board ("PRAM") battery. Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a boot failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 11
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

I start my mac book pro and the screen goes white with an apple in the middle

I start my mac book pro and the screen goes white with an apple in the middle. Starts like charging but then it turns
off again

Reinstall Snow Leopard without erasing the drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. 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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
Reinstalling Lion/Mountain Lion Without Erasing the Drive
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 the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion/Mountain Lion: Select Reinstall Lion/Mountain Lion and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

Installed the update tonight and now my phone (Lumia 928) won't power up. I've tried a soft reset, but the screen goes from the Nokia logo to a red Verizon screen to a black screen. What's wrong and how do I fix it? Help!

Installed the update tonight and now my phone (Lumia 928) won't power up. I've tried a soft reset, but the screen goes from the Nokia logo to a red Verizon screen to a black screen. Tried it 10 times with the same result. What's wrong and how do I fix it? Help!

Oh no Mr.Ected!
I can see if we can get your phone back on! I understand how important it is to have a phone. Have you tried this to see if we can get it back on? http://vz.to/1DZhteH . If it is still goes to a red Verizon screen and then to black we might need to do a master reset. While the phone is off try this:http://vz.to/1DZhXkU Be mindful this is the last resort because it will erase everything on the phone. If you have done back up assistant in the past you will be able to get you contacts back. Please let me know if you need any more help.
AmberF_VZW
Follow us on Twitter @VZWSupport

HT4907 I am able to connect to my Mac Mini on Back to My Mac through iCloud but the keyboard/trackpad on the MBAir or MBP with which I access does not register on the Mini. So I can see the screen but cannot interact with it. Mini works accessing MBP/Air

I am able to connect to my Mac Mini on Back to My Mac through iCloud but the keyboard/trackpad on the MBAir or MBP with which I access does not register on the Mini. So I can see the screen but cannot interact with it. Mini works accessing MBP/Air and I can use Mini to input data or interact with screens of those computers.

Regarding your first question about bookmarks, I think you discovered the answer in when you pressed the address bar. The second tab there has your bookmarks.
As for the keyboard, I'm not sure why your Firefox is reacting so slowly; mine seems to show keyboards even when I don't want them. If you have accumulated a lot of history, perhaps that's an issue?
Did you use any third party software to move your Firefox data from internal memory to the storage card?

I have a mac which plays the boot sound but the screen stays black. Recovery mode does not work, as the keyboard is wireless. What do I do?

What it says in the title.
I have an older mac and it worked perfectly until about an hour ago when I shut it down because we needed the room dark for a presentation and the screen saver was putting out light.
Now it won't turn back on. It plays the start up music but the screen stays blank.
The CMD+OPT+R for recovery mode doesn't do anything, the keyboard is wireless so the command doesn't get to the computer and that's the only keyboard I have since that's the one it came with.
I'm looking at making a USB recovery disk but it says that I should click on "Options" in the Disk Utility but there is no options button or menu to click.
From here: OS X: About Recovery Disk Assistant in step 3 I get stuck.
Also it says that if I make a drive on this computer which has an older OS it might not work on the broken machine with Mavericks.
This machine literally worked and I turned it off and now it does not work and there seems to be nothing I can do... ***...

kodemage wrote:
well, then recovery mode does not work. I've tried all the key combinations I've seen on line. Command+R, Command+Option+R, Command+Option+P+R, none of these work.
I don't believe there is anything we can do on a forum to help then, you need to take it into a AASP and have it professionaly diagnosed. If you don't know how to locate an AASP in your area you can begin by using Contact Apple for support and service
Good luck.

When I turn on my iPhone 4S the apple logo pops up for a split second then the screen goes black but the phone itselfs boots up just fine???

I tried replacing the screen with no luck. The same thing happened with the new screen. I replaced the backlight coil and the backlight ic and still have the issue. I don't know what else could be the problem. If the battery is completely dead and I plug it in the "charging battery" symbol shows just fine during the entire time it is charging, but as soon as it starts to boot up the apple logo shows for a split second then the screen goes black. The rest of the phone still boots up just fine. I can use SIRI, press the lock button like I'm about to use my phone and slide my thumb across where the "slide to unlock" would normally be and it will make the unlock noise just no picture display. I am pretty tech savvy when it comes to repairs and all of the connections look fine, replaced backlight coil and ic, replaced LCD/digitizer, tried a restore, tried a DFU restore, multiple hard resets, but I am at a loss as to where to go from here. I had dropped the phone and put a minor crack in the screen but the phone worked just fine for a couple months after before this started to happen. The phone is still under apple warranty but apple won't cover it because Apple is stating that it is "caused by the crack in the screen." But being a repair technician I know that is not the case... Good one apple. So I took it upon myself to try to determine the REAL problem. Anyone with a little more knowledge have any ideas? Any suggestions are appreciated!!

Yes, I understand that. But The screen issue is not a result of user damage. The phone was not dropped when the screen got cracked. My daughter was standing in a chair at the table and dropped one of her toys onto the bottom of the phone and cracked it right by the home button. (Nowhere near the LCD/digitizer flex cables, connections, or logic board components) then a few months later my phone had died, I plugged it in, it showed it was charging, then Apple logo disappeared and screen didn't work. AFTER contacting Apple about the issue and them telling me that it "is a result of the very minimal crack to the sheet of glass that has no relation to the LCD or Digitizer and that the warranty does not cover it I had taken it upon myself to change the LCD/digitizer to no avail, as well as backlight ic and backlight coil to no avail. But how do I go about letting Apple know that it is in fact NOT due to the cracked screen nor is it due to the flex cable connections? I can't. So the lady that works the call center phones trying to "convince" me that she knows what she is talking about and "convince" me that it is from the cracked screen I have to take her word because I can't show Apple that its not because of that without paying them $199 to fix the screen in which case they will just send me a new phone rather than fix the faulty hardware under warranty.

My Screen quit on my ipod nano 6th gen... still syncs to my mac but the screen functions wont work... Whats up with it?

My Screen quit on my ipod nano 6th gen... still syncs to my mac but the screen functions wont work... Whats up with it?

Read the PDF user manual for a possible solution: iPod Manuals and/or iPod Nano Support
Every iPod comes with complimentary, single-incident telephone technical support within 90 days of your iPod purchase.
If you also purchased AppleCare, then your warranty is extended for technical support and hardware coverage for two years from the original purchase date of your iPod.

My Mac goes on but the screens don't go on

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