When start up screen still black

I have a mac pro model early 2008. Sometimes at startup I hear the startup chime but the screen is blank. Everytime I restart I hear the startup chime but the screen is black but I think the CPU is working because I hear the fan running.
(this problem hapen after install 10.7 )
Message was edited by: hany hanna

Troubleshooting: My computer won't turn on
https://support.apple.com/kb/TS1367
did you bother to clone or keep 10.6.8 around on another drive?
Does it work if you hold the shift key and do safe boot?
Starting the computer in "safe mode": Mac OS X: What is Safe Boot, Safe Mode?

Similar Messages

Computer won't start up after recent version of mountain lion. My power Mac was running extmely slow this morning, so i shut down to restart. As it is starting the screen goes black, says something about debugging with the word panic in parentheses. was

I upgraded to latest version of mountain lion yesterday, this morning my power Mac was running extremely slowly (while typing, had to wait a second or two for words to appear), I shut down to see if problem would clear up. When starting up, screen went black with programming jargon, something about debugging with the word panic in parentheses. Screen then goes back to gray, says Mac encountered a problem and has to restart once I push a key. Apple logo comes on gray screen, icon keeps circling and nothing happens. This has happened three times in a row after shutting down and trying to restart. Any thoughts?

When verifying disk, said could not repair disk, back up as many files as possible then re format disk. Computer now doing Internet recovery. Should I. Do the following in this order
1 restore from back up on time machine
2 re install osx
These are the options coming up on osx utilities window

Hİ My ipad's screen is black. When it take charge, I can hear sound but still black. I press and hold both the sleep and home buttons for about 10 to 15 seconds but this doesn't work. Screen still black! PLS HELP ME!

Hİ
My ipad's screen is black. When it take charge, I can hear sound but still black. I press and hold both the sleep and home buttons for about 10 to 15 seconds but this doesn't work. Screen still black! PLS HELP ME!

How long did you let it charge? It may take 30 minutes before the iPad responds when the battery is completely drained. Let it charge for at least 30 minute using the wall charger. Then rest the iPad. Press and hold both the Home button and the Sleep/Wake button continuously until the Apple logo appears. Then release the button and let the device restart. You will not lose data doing this. It's like a computer reboot.
If the iPad restarts let it continue to charge until the battery is 100%.
If the iPad still does not start make an appointment at an Apple Store to have your device examined by a technician. Or contact Apple Support.

My iphone doesn't ring when it's unlocked .. i have calls but the screen still black and when i slide to unlock the screen i found i had missed calls

My iphone doesn't ring when it's unlocked .. i have calls but the screen still black and when i slide to unlock the screen i found i had missed calls
i have tried manythings but it doesn't work
i put it in silent mode and i found my calls comes normaly and it works good but when i turn on ring mode it's back as it how can i fix that ?!

Basic troubleshooting steps outlined in the user guide are restart, reset, restore from backup, restore as new device. Try each of these steps until your problem is solved. If these steps fail to solve your issue, then you'll need to bring your phone into Apple (or an authorized service provider in your area) for evaluation.

I start my I mac 21.5 inch led 16:9 widescreen computer but the screen is black, I hear it starting but the screen still black. and the screen is black, I hear it running but till the screen black

I start my I mac 21.5 inch led 16:9 widescreen computer but the screen is black, I hear it starting but the screen still black. and the screen is black, I hear it running but till the screen black

Try a safe boot.
     Shutdown your machine. Hold down the shift key. Poweron. Wait awhile; wait awhile while you harddrive
     is being checked.
     http://support.apple.com/kb/ht1455
Report back results.

Turn on MacBook Pro but screen still black

So, I tried to turn on my Mac. And when I hit power button, it starts and suddenly the white screen goes off. And I'm no longer available to see my screen.
I restart my Mac with the power button and nothing yet, screen still black. Even try safe mode but didn't work.
Don't know if it's hardware or software issue. Help please.

If a SMC reset does not help, make an appointment at an Apple store genius bar for a free evaluation. I suspect that there are hardware problems with your MBP. Probably the display or the GPU.
http://support.apple.com/kb/ht3964
Ciao.

HP 19 All-in-One Screen Still Black

Hi, I have a problem with my PC and I need help to get it fixed ASAP! I've had it for a little over a year, I've taken very good care of it and it has never given me problems before now.
It was running, working normally, and I had left it for a little bit, long enough for it to go into sleep mode, and when I came back to it it was still running but the screen stayed black and would not come back on no matter what I did (move/click the mouse, push the sleep mode key, etc) so I tried restarting manually, the computer turned on and made all its usual noises but the screen stayed black and the mouse and keyboard didn't turn on/lights on them didn't light up, and this continued to happen every time I turned the computer off and back on.
Apparently this problem is more common than I expected but none of the supposed solutions worked for me. I tried resetting the BIOS using keyboard shortcuts as directed but that didn't work presumably because the keyboard isn't working. I tried unplugging my mouse and keyboard and plugging in different ones but those didn't turn on either. I tried doing a hard reset, and I either wasn't successful or I was and the problem is physical. I then tried taking the back cover off to see if I could find a problem inside but everything looked normal and nothing is loose (although it should be noted that i'm not super knowlegeable about computers)
I've tried leaving the computer on and waiting to see if the problem would fix itself and I've tried leaving the computer off overnight and not messing with it and nothing is working. I would like to know what the problem could possibly be and if I can fix it myself before I have to call someone or take it somewhere because I have a hard time talking on the phone and I do not have the funds to have my computer replaced or fixed by a professional.
Thanks!

Hello @skippyrip,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that your desktop computer's display is black when the computer powers on, and I would be happy to assist you in this matter!
To further diagnose this issue, I recommend following the steps in this document on Screen is Blank after Starting the Computer.
If the issue persists, please call our technical support at 800-474-6836. If you live outside the US/Canada Region, please click the link below to get the support number for your region.
http://www8.hp.com/us/en/contact-hp/ww-phone-assist.html
I hope this helps!
Regards
MechPilot
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the right to say “Thanks” for helping!

IPod Classic Screen still black after restoring it

After dropping my iPod classic, the screen went black and I could no longer get it to work. I was able to restore it however the screen is still black. I can hear it clicking when I spin the will and it connects to iTunes but the screen is still black. Is there any way to fix this?

Put it in the rice for couple of more days. Then
Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iOS device fully off, let the battery fully drain. After charging for an least an hour try the above again.
- Try on another computer
- If still not successful that usually indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.
Apple Retail Store - Genius Bar
Apple will exchange your iPod for a refurbished one for $99 for 16 GB one and $149 for the others. They do not fix yours.
Apple - iPod Repair price
However, using/charging the iPod may have resulted in permentnet damage

Right side of start up screen is black and graphics flicker.....help!

For the last 2-3 months whenever I turn on my macbook (Mid 2007 white 13in model) the right 3 inches of the screen are black and the log in screen is shifted to the left 1/3 of the screen. These graphics flicker constantly. If I log in my computer stays like that.....black on the right and flickering graphics on the left. I usually have to power off and on around 10 or so times to get it to boot normally. Once it is running normal....it stays like that until I turn it off and back on. When I put it to sleep and back on it never has a problem, only from power off to power on. The screen and graphics are working perfectly except on startup.
Anybody have an idea of what it could be or how to fix it?
I was running snow leopard when this first started. About 1 month ago my HDD crashed so I replaced it and now am running Tiger again as I haven't had time to upgrade the OS yet.

Also- When my computer starts up normally it has a grayish/light blue screen with an apple on it for 2-3 seconds and then the log in screen appears.
However, when it is messed up the screen stays black for 5 seconds and then the log in screen appears distorted on the left side of the screen and the right side stays black.
Both times I hear the initial "ding"

Screen still black. Help please.

Hi there. I bought an iMac yesterday, but after a few hours playing around with it, the screen went black like it was going to sleep. I tried waking it up, but nothing happened. I unplugged it and tried restarting it, but the startup sound played and the screen was still black. After about an hour, it went back to normal, but then five minutes later, BAM. It happened again. I went to bed and left it, and when I woke up, it seemed fine. But after ten minutes, it's gone again. It seems to happen whenever I'm on YouTube or playing videos in Quicktime, so is there a way to prevent this crashing in the future?

If you purchased it directly from Apple take it back to the Apple Store you purchased it from. If you purchased it from another retailer return it for exchange from them. Otherwise you will need to contact AppleCare (number is in your owners manual), obviously this should not be occurring on a new machine. AppleCare is open M-Saturday during normal business hours.

After restore, Pavilion a6250t appears to start then screen goes black.

Have tried F11 restore as well as restore from DVD. In bothe cases, The system restarts after retsoring the Windows partition, attempts to start Vista then screen goes black, while the CPU appears to be processing the restore. Suggestions?

XFX Radeon HD 5770 = PC only card, compatibility is not a guarantee
You realize there is EFI type firmware that makes a Mac a Mac? and PC even with "UEFI" don't require or use graphic cards, hence Apple vs PC
you know by going to Apple Store or a vendor like OWC or that says "Mac Pro" Compatible - you can find Apple hardware on Amazon for instance.
Or you buy from a vendor like MacVidCards that deals with GeForce cards (mostly if not exclusively) FOR Mac Pro.
And there are different options for 2008 vs older which is why it is important when you have lack of clarity and have one thread being thread-hijacked in two.
http://netkas.org
Has forum and more about 3rd party non-Apple AMD/Nvidia and support down the road or using off the shelf PC cards.

What do you do when your iphone screen goes black

My phone died and i started charging it and when i did it charged but the screen was black but it vibrated like i was getting text messgaes but nothing would show up

Have you tried resetting your iPhone?
Reset: Press the Home and On/Off buttons at the same time and hold them until the Apple logo appears (about 10 seconds).
No data will be lost.

After installing yosemite start up screen has black wavy lines

After I have installed yosemite on my macbook pro the start up screen has wavy lines on it. When it first starts the line is in the middle of the screen and then it goes wavy black lines and then finally is ready to go. Is anyone else having this problem and how can I fix it. Thanks

Hey wealthylives,
Welcome to the HP Forums!
As the computer screen is remaining black/blank after the hard reset, I would suggest the following document 'Troubleshooting Black Screen Displays with No Error Messages During Startup or Boot'. Please follow through the steps outlined in order.
Please let me know the outcome of the troubleshooting.
Thank you.
I worked on behalf of HP

TS3474 My nano will not power on when fully charged, screen remains black.

Bought early 2012, no idea what generation it is. When connected to the stereo, the screen illuminates and nano works with stereo controls. When I try to take the nano for a run, when holding the power button down the screen remains black and no amount of touching the screen will produce an image or any sound. Any ideas about troubleshooting the black screen when powering up un-connected?

Hello gatormother,
Thank you for using Apple Support Communities.
For more information, take a look at:
iPod nano (7th generation): Hardware troubleshooting
http://support.apple.com/kb/TS4433
Will not turn on or screen remains dark
Connect iPod to power for at least ten minutes to ensure that the battery has enough charge to allow iPod to turn on.
If iPod does not turn on after ten minutes, try resetting it while it is still connected to power. Reset the iPod by holding down the Sleep/Wake button and the Home button for at least six seconds or until you see the Apple logo appear.
If the Apple logo appears on the display, connect iPod to a computer and verify that it appears in iTunes and can play music. If iPod appears in iTunes and can play music, no further troubleshooting is needed.
If the screen remains dark and will not turn on, then your iPod may need service.
Have a nice day,
Mario

180Gb keeps going from start up screen to black, over and over

I lost my used 180 GB classic for almost 6 months (turns out it was in my PJ drawer, who knew) and just now found it. I charged it for several hours and it was working great- Used it for a couple days...and then today I was playing one of the games, exited it, when to play a song, and it froze and shut off, showing me the Apple start up screen. I thought it was just randomly rebooting itself (my phone does that all the time), but instead it showed the apple screen for maybe 10 seconds, then went black, then went back to the apple screen, then black. It has literally been doing this for hours, no amount of resetting will change it- when I plug it into the computer all that happens is the backlight goes off and the apple screen just stays up. I can hear it humming and working really hard but...is there something else I can do??

Hi, welcome to Apple Discussions.
As soon as the Apple logo appears hold down Select and Play. This should put the device in disk mode. You can then connect it to your computer and restore it.
tt2

When start up screen still black

Similar Messages

Maybe you are looking for