Black screen, no power...

I did a shutdown, and unplugged everything for reset maintenance. After plugging back in all cords, I hit the power button, but the machine got no electricity. Black screen, no power. I repeated what I did, plugged in and out...etc. Black screen for the next 20 minutes. Finally I held in the power button while I unplugged, replugged, then unplugged. Let go; plugged in and it finally turned on.
Whats the issue here, dust? A power issue? I heard about G5PPC machines with a power issue, I may have had an affected serial, but usually my machine works fine. I don't want to take it in unless it completely fails, but although this issue has occured before; I always end up getting it turned back on.
Power issue? Dust? Gremlins? A friend even said it could be a theoretical fire issue if it was a power problem?
I do leave the machine on 24/7; should I be worried? Whats going on here.....
Thanks

"Do I really need to haul it 20 miles to the shop? "
If you don't want to spend any of your own $$$$ to fix it yourself & that includes purchasing a battery.
Call Customer Relations -1-800-767-2775
Since your serial # is covered explain to them all that is wrong w/your computer & ask if that is covered also. If so, don't you think the 20 miles is worth having all that work done plus labor *for free* is worth it?
Do you have AppleCare? Just in case it's not all covered under the AERP.
As for the camera working in the store.........they all do. Not strange.

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My iMac 8.1 was slowing down and had permissions problems. I backed everything up, and then re-installed. Now all I get is a black screen. Power+D gives me a hardware error message: HDD-1336. Help!

My iMac 8.1 (10.6.8 ) was slowing down and had recurrent permissions problems, mostly with Java. I backed everything up, and then re-installed from time machine. Now all I get is a black screen which says I need to reboot. Power+D gives me a hardware error message: 4 MOT/1/40000003: HDD-1336 or HDD-1327. When I reboot from the OSX CD and start disc utilities everything checks out OK. When I reload 10.5.2 from the OSX CD everything seems to work OK and no more permissions problems. But then I loose all my email and safari stuff. Anyone have any ideas short of going back to my old PC?

DonM. wrote:
Hi
Thanks for the help. No point in fooling around with it any more. Will I be able to use it as a monitor if I get a mimi mac?
Cheers. Don
No unfortunatley it's too old, you are referring to Target Display Mode which became avialble in 2009, your 2008 needs to have the HD replaced. I'd still do that if everything else is OK or you can simply buy a new MM and display or even a new iMac or an Apple refurbished iMac to save money.

Froze on black screen and power button does not work

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Neglect the reset and when it says place the iPod in recovery mode use one of thes programs
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Apple Retail Store - Genius Bar

Black screen, steady power light... and it gets weirder

The other morning I turned on my 17" MacBook Pro that has my 30" Cinema Display hooked up to it and got a black screen on the 30" with a steady power light (no morse code flashing).
There was nothing different from the night before (when it did work). No software updates, no new installs, nothing. I have a second 30" display and hooked it up to be greeted with the same issue. After swapping power supplies and a host of other things, I determined that it wasn't the monitors, but the laptop itself.
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http://www.displaylink.com/support/mac_downloads.php
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Help!

Hello tsunshing,
Your computer is on but nothing will how on the screen.
Do a hard reset.
Turn the computer off.
Remove the power cable.
Hold down the power button for 15 sec while booth power sources are removed.
This should reset the hardware in the computer.
Do you see any lights on the keyboard or the computer flashing?
Try to connect another monitor to the computer and see if you can get anything on the external screen.
Let me know how everything goes
Have a good day.

Black screen after power on and startup sounds repeats

Hi,
yesterday evening during a WOW session the screen went gray and the iMac did not respond to anything. I pressed the power button and started again. I got a black screen and the startup sound repeated endlessly.
This morning the same. I checked the RAM modules in my macbook; they are ok.
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Any ideas?
Thanks

Try using this procedure to reset the SMC (power management)
http://support.apple.com/kb/HT1543
If that does not work, insert your Mac OS X installation disc and start up (or restart) with the C key held down. Does it start up properly from optical drive?

IMac model A1224 black screen when power on and keyboard not working

Hi,
When I power on the iMac model A1224, it is black screen from startup, and the Mac keyboard seems not working (Press Caps, Nums lock no light), but try that keyboard on another computer, it can work. So please advice what I need to do to solve the problem.
Thanks a lot.

Hi nhiatay,
Welcome to the Support Communities!
The article below may be able to help you with this issue.
I realize the heading states a gray screen, but the troubleshooting steps would be the same for startup issues:
Click on the link to see more details and screenshots.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
Cheers,
- Judy

Black Screen, only power works

Hi guys, my notebook (HP G62 b19sl) doesn't work anymore. I explain better the problem right now.
When I press Power Button the screen remains black and only the fans runs. Only Power LED and Wi-Fi LED are ON.
I can't do anything if I press buttons. CAPS LOCK's LED it's not ON.
I brought it to a Computer Expert. Maybe he resets BIOS and Notebook was operative but when i pulled down the screen to interrupt my work, computer showed black screen again when i pulled up the screen to continue my work.
The combination "Windows+B" without battery, doesn't work to reset BIOS.
I hope someone could help me.
Thank you

Hello hamoon,
Welcome to the HP Forums! I hope you enjoy your experience!
I understand your computer will not start properly. I will do my best to assist you with this issue! To troubleshoot, please try the steps in this HP document: Computer Does not Start
This document contains steps such as resetting the notebook and more, corresponding to the exact symptoms. I believe this document will resolve the issue. If not, I would contact HP phone support for hardware assistance. You can utilize this website to learn how to contact HP appropriately, based on your region: Contact HP Worldwide
Please let me know if you have any other questions or concerns. Thanks for bringing this issue to the HP Forums. Have a great day!
Mario
I worked on behalf of HP.

I have an Acer Aspire v3-571, it has a black screen and power button on.

i need help! i have tried plenty of bios and the newest one i downloaded just has an update exe. in the folder, please help!

Is it a "black screen" or is the screen "dead"? There is a difference. The first means its a software issue, most likely. The second means it is a hardware issue.
If it is the first, I would due a backup and restore your phone. If its the second one, you need to replace the screen or get a new phone.

Black screen after power on

Hello,
I bought my macbookpro in 2007 and never had any problems with it so far. Now when i press the power button, i hear the typical sound and i har it working but the screen remains black. I tried to hold the shift key while starting up, nothing. I tried shift + ctrl + eject, nothing. Is there anything else i can do?? Thank you for any suggestions.

If you have reset the SMC : http://support.apple.com/kb/ht3964
and tried starting from an install DVD with the same results, then you will need to have it repaired.
Apple probably will not do it, due to the age; third party repair shops should.

Black screen on power up

A friend of mine has a 2011 MacBook Pro. Whenever she turns it on she gets the Apple logo, her wallpaper loads up, and then the screen goes black. Thought it might have been because the battery was dead, but then she told me her 2 year old spilled water on it 3 days ago, so I'm assuming her motherboard is fried. Before she junks it, and possible thoughts?
Thanks!

Sorry to note that.
Electronics and water do not mix.
Damage caused by water cannot be repaired.
Hope she has a backup in hand.
Best.

23 " Cinema Display - Black Screen but power light on

Hi all.
Last night my 23 " Cinema Display (aluminium) went black, after I repluged the video lead back in the graphics card. The power light is on the display and if you press the button at the side the powerlight glows brighter before going off and if already off it glows brighter before coming on (but still no display). Attached the unit to a g4 powerbook and still no video and no options for the monitor in system preffs. Although you can see the usb devices.
Any advice
Cheers
Steve

Hi all.
Quick update.
I took the power brick to work and tried it on one of their displays and everything is ok so it's not a brick problem.

Black screen and no HDD action on Satellite A315-S2615

Hi,
First, let me thank everyone who gives input. This is my last hope.
Background: I've had a A315-S2615 (I think, it's at home and I'm typing this at work so I'm not 100% sure of the model #) for 11 months when the problem started. I hit the power button, the light by the power button goes on, the laptop would start, but freeze at the "Toshiba" screen. I'd push and hold the power button to turn it off and try again. This time, the light would come on but the screen would stay black. I noticed that the hard drive light isn't running either.
I went on Toshiba's website and found a local service provider since I was within the 1 year. They put in a new motherboard and it worked great...for 1 month that is. Now, I'm outside the 1 yr wrnty and I'm screwed. The service provider said they don't guarantee their work when it was done in a Toshiba warranty. Toshiba said I should have sent it to them to fix the first time and maybe they could do something, but since I went to their authorized service provider, they won't do anything (BULL! Then why do they have authorized service providers!!!).
Again, I hit the power button, light by the power button comes on, but no hard drive light flickering and no screen. I've built computers, so I have a small idea of what to troubleshoot, but laptops are new to me. Here's what I have tried...
1. With and w/o battery. When it's plugged in, the light for the plug comes on. When the battery is in, the light for the plug and the battery charger comes on, so it seems to be getting power and acting normal.
2. Hard Drive? Bought an external Hard Drive case and hooked it up to another comptuer. It reads fine.
3. Memory? I had two memory modules in it. I tried it with one, then the other, then both. Nothing. I don't think both would go bad at the same time.
4. Tried connecting an external monitor. Nothing. (Again, hard drive doesn't seem to be spinning, so I don't think this is it).
5. Took apart the laptop looking for bad connections. Didn't notice anything, but it was a general scan since I'm not too familiar with laptops.
So I'm down to the motherboard and the chip, right? I'm guessing chip since the motherboard is only 1 month old. Thoughts?
I have search countless forums for an answer to "black screen", "no power", "blank screen", etc. Lots of issues, not any solutions. I'm hoping someone has seen the solution to this problem.
Again, any help is greatly appreaciated. Otherwise, I out a notebook that only lasted 11 months (I didn't expect this from a Toshiba).
Thanks a lot!!!
Andy
I just noticed this is a Europe forum. Not sure how I ended up here. Either way, hopefully someone can help.
Thanks,
Andy

I got a "-1 reply" problem, so here it is again...
Hi,
First, let me thank everyone who gives input. This is my last hope.
Background: I've had a A315-S2615 (I think, it's at home and I'm typing this at work so I'm not 100% sure of the model #) for 11 months when the problem started. I hit the power button, the light by the power button goes on, the laptop would start, but freeze at the "Toshiba" screen. I'd push and hold the power button to turn it off and try again. This time, the light would come on but the screen would stay black. I noticed that the hard drive light isn't running either.
I went on Toshiba's website and found a local service provider since I was within the 1 year. They put in a new motherboard and it worked great...for 1 month that is. Now, I'm outside the 1 yr wrnty and I'm screwed. The service provider said they don't guarantee their work when it was done in a Toshiba warranty. Toshiba said I should have sent it to them to fix the first time and maybe they could do something, but since I went to their authorized service provider, they won't do anything (BULL! Then why do they have authorized service providers!!!).
Again, I hit the power button, light by the power button comes on, but no hard drive light flickering and no screen. I've built computers, so I have a small idea of what to troubleshoot, but laptops are new to me. Here's what I have tried...
1. With and w/o battery. When it's plugged in, the light for the plug comes on. When the battery is in, the light for the plug and the battery charger comes on, so it seems to be getting power and acting normal.
2. Hard Drive? Bought an external Hard Drive case and hooked it up to another comptuer. It reads fine.
3. Memory? I had two memory modules in it. I tried it with one, then the other, then both. Nothing. I don't think both would go bad at the same time.
4. Tried connecting an external monitor. Nothing. (Again, hard drive doesn't seem to be spinning, so I don't think this is it).
5. Took apart the laptop looking for bad connections. Didn't notice anything, but it was a general scan since I'm not too familiar with laptops.
So I'm down to the motherboard and the chip, right? I'm guessing chip since the motherboard is only 1 month old. Thoughts?
I have search countless forums for an answer to "black screen", "no power", "blank screen", etc. Lots of issues, not any solutions. I'm hoping someone has seen the solution to this problem.
Again, any help is greatly appreaciated. Otherwise, I out a notebook that only lasted 11 months (I didn't expect this from a Toshiba).
Thanks a lot!!!
Andy
I just noticed this is a Europe forum. Not sure how I ended up here. Either way, hopefully someone can help.
Thanks,
Andy

Macmini can't wake up and I Get a Black Screen

Hi all, this is my first post in this community. Please do help me.
I purchased a Mac mini (2012 late model, OS was originally Mavericks 10.9.1 when the machine arrives at my home. ) in January 2014. I used a “miniDP to DP adapter” to connect the Macmini with my Asus PB278Q Display (the original DP cable that comes with PB278Q is connected to the adapter. The adapter is plugged into the Thunderbolt socket on the back of Macmini). It supports the maximum resolution on my display (2560x1440), but if I use a HDMI cable instead, it only supports up to 1920x1080P. Everything was fine until last week when I attempted to wake up macmini after it had slept for 8 hours or so (I used it in the morning, put it to sleep mode before going to work, and then came back at 5:40 pm hoping to use it again). The Macmini light was on, and I could hear noise. But the screen is black with its power light yellow. When I kept hitting the keyboard, I could hear a “Ding” from Macmini each time, and the PB278Q power light sometimes turned blue, but soon a prompt "No Signal” appeared on the screen, followed by a totally black screen with power led turning back to yellow.
I tried to unplug the adapter from the thunderbolt port, plugging it back in, connecting a HDMI cable with macmini (PB278Q supports both DP and HDMI), nothing helped. Pressing and holding the power button for 6 secs, and pressing it again to let Macmini reboot surely helps each time. I have not done a thorough experiment to tell within how many hours the wakeup has no issues. But I am sure that there is no issues at least within one hour. I.e. if I walk away from my macmini, and it sleeps (set to 10 mins sleep), come backs after not a long while, and hit the keyboard or the trackpad. The screen comes back to life immediately, and I see the “login” dialog.
I called Mac techsupport for three times and talked with their higher level engineers for a long time. They suggested me to do “Command+Option+R+P”. Now I know that is “Resetting NVRAM / PRAM”. But the problem stays.
Does Re-installing help? I just reinstalled last night and won’t be able to judge until tomorrow. At this point, I have the following suspicions, which I hope someone can help:
1. The miniDP to DP adapter might have caused this problem. Replacing one adapter or using a good miniDP-DP cable might be the solution. But I can’t find such a cable or adapter on Apple’s online store. Note it should be Mini-DP to DP or thunderbolt to DP cable. Please suggest where I can get one
2. I doubt that my suspicion 1 is valid, as in my question – why is everything ok when the macmini does not sleep or sleeps a short time? When I work on the macmini, no problem happens. The display works fine, and the resolution is the maximum that the display is capable of. Therefore, why should my suspicion one hold any water?
3. Since the display power led turns blue when macmini detects keyboard hits, does that prove that macmini is innocent, as it successfully sends out a signal to my display, but somehow my display persistently says “no signal”. In this light, can we shrink the problem identification scope to the display, the DP cable and the adapter?
Thank you very much for any help or hint/tips I can get from any of you.
God bless.
Bluebird,
Chengdu, China

Hello Bluebird,
See if it's related to this...
It also seems to be related to later OSX versions, like 10.8.x & 10.9.x
The 2012 macs (and later apparently) (also later OSX versions on earlier Macs can do it also), not waking normally from sleep after hours being in sleep. (noted here ...
http://www.xlr8yourmac.com/archives/feb13/022813.html#2012macswontwake
"Why 2012 iMac/2012 Mac Mini won't Wake After Hours of Sleep (Hibernates/Powers Off)")
The sleepimage file still reappears even if never slept. Delete it (hibernate off, etc) - within minutes its back.
A note on that here - http://www.xlr8yourmac.com/feedback/Chameleon_SSD_Optimizer.html
About iMac sleep...
http://forums.macrumors.com/showthread.php?t=1529750
Try this: "sudo pmset autopoweroff 0" and "sudo pmset standby 0"
http://xlr8yourmac.com/archives/sep13/091313.html#10.8.5SleepEjectTip
One user reported that the opposite worked...
Try this: "sudo pmset autopoweroff 1" and "sudo pmset standby 1"

Windows 8 HP Pavilion dv7-4285dx Upgrade results in black screen after intallation finalizes.

I have a 2011 HP Pavilion dv7-4285dx with Windows 7 64 bit Home premium installed. The notebook/laptop has a AMD Radeon HD 6300M series display adapter with driver version 9.2.2.0 dated 9/27/2012 and an ATI technologies Intel HD Graphics display adapter with driver version 8.7771.1.0. The notebook/laptop has not had a hardware upgrade and contiains the orignal factory OS. BIOS is current to latest available.
The issue I had while upgrading to Windows 8 is after the install finalizes (settings and preferences are entered) and the system boots to the tiles screen, the display works fine. Clicking to the desktop works only for a few moments before the screen goes dark. Pressing the power button and/or closing/opening the lid results in at times a black screen (no power to the screen) or black screen (power to the screen) or a black screen where only the mouse pointer is visible and moves around the screen. Restarting the computer results in a repeat of the issue at times while other times it will boot directly to what appears to be the windows desktop. You can interact with the file folder icon on the task bar as well as internet explorer, and you can get the charms bar and tile screen. Any attempt to open computer management or any control panel or task manager will open the window as an icon on the task bar. You can mouseover the icon to "preview" a small version of the window but you can not click on it to maximize.
I attempted the following workarounds:
1) Clean install of Windows 8: Installs but fails with same result as above
Refresh PC from windows 8 rescue media: Works slightly longer until AMD driver fails and then reverts to situation above.
2) Uninstalling all display adapters (via computer management) and then upgrading to Windows 8: Results in microsoft drivers getting installed, works much as refresh above until AMD driver fails and then reverts to above situation.
3) In Scenarios 1 and 2, I also tried to use windows update within Win8 to update the drivers there are updated MS drivers available ,(dated as late as 10/27/2012) but intalling those drivers also resulted in a failure of the adapter within a short period of time as did NOT updating the drivers.
4) Disabling display adapters and then restarting: Results in a BSOD (Blue Screen) IRQL_NOT_LESS_OR_EQUAL Stop: 0x0000000A error during boot as the OS runs into trouble with the driver before Windows 7 boots. This happens if one or both drivers are disabled.
5) Disabling display adapters before in-place upgrade to Windows 8 results in the Windows 8 equivalent of a BSOD and results in the system shutting down and then reverting to Windows 7.
Through research, I determined some ppl had luck connecting another monitor/HD TV through VGA/HDMI and then using the function-screen button to switch, with my system this resulted in the same issue displayed on the TV/Monitor. There are also updates to ATI and Catalyst center available including drivers and installing these do not remedy the issue. Intel was checked and there are no drivers available as HP uses a "custom" driver for intel. Attempting to install any of these Intel drivers will result in a fail with a compatiblity error.
Windows 8 has no safe mode ability from the windows 8 rescue media disk, you cannot F-8 as you could in the preview. Safe mode must be reached via charms, settings, startup and then selecting safe mode as a boot option, which is not available as the display adapter malfunctions. In those scenarios where I was able to get a windows desktop to boot up as in the first paragaph I can get to the restart settings via charms, but clicking to bring up the restart menu requires another window to open which is only visible as a "preview" on the windows task bar.
if you are going to attempt to try any of these,
1) Use a third party software to image your pre-win 8 upgrade system that you can boot into from USB or CD;
2) Before starting the process, disable the UAC prompt and remove any passwords from logon, as those things will require you to interact with the OS and you will not be able to do this when the adapters fail. The screen will shadow out as it usually does but the prompt will not be viewable.
3) Create an ISO image of the Win8 install media and write down the product key. If you are able to get a successful boot, before the drivers fail, create a Windows 8 rescue media disk.
I spoke with HP tech support this morning (10/29/2012) they are aware of the issues and they lie with the display adapters. They are working toward a solutuion but there are none available at this time and no date when they will be available. They recommend checking the support website and having the web page autoscan your PC as the drivers will show there when they are posted and they will be installable from Windows 7 so there will be no issue with upgrading to Windows 8. Bottom line, do not upgrade to Windows 8 at this time.
MS Tech support escalation tier reps also informed me there is no present workaround available.
Hope this helps and saves somebody some time!
JJ

My laptop sat at BestBuy from Friday night until today (10-31-12)! They couldn't figure out how to fix the problem so I finally told them to revert my latop back to Windows 7! I hope HP reads these and will hurry up and make the updates needed so that I can run Windows 8 on my Laptop! I just bought mine in July of last year there is nothing wrong with it and after dropping about $1200.00 for my dv7-4285dx along with the Best Buy Geek Squad package I do not feel like having to drop more money into another laptop!! PLEASE HURRY AND FIX THIS I DIDN"T DROP $69.99 plus tx to not be able to use Windows 8! Even before I did the upgrade I had the GEEk Squad check to make sure I could make the upgrade and was told this laptop well surpasses the required minium to run Windows 8!!!!!!

N560gtx-ti twin frozr 2-Black screens

Basically The card is 2 days old and Ive been having huge issues since I opened the box. When I went to download the drivers the moment the load was done The computer just froze a black screen with power to the mouse and monitor but not to the key board. I read That if you dont have power to your keyboard via Numbers lock it could be your Mobo and not your gpu. Heres my Set up
Gigabyte Ga-z68ap-d3 Mobo
Intel core i5-2500k
Patriot 4gb ram ddr3-1333MHz (2)
600w diablotek psu
Things Ive tried:Ive downloaded Drivers from the disc I was given from the Msi Website and From Nvidas Website. I also tried older Drivers But still didnt do anything. I tried different Cable heads(dvi/hdmi/avg)and different monitors. As of right now I can only access My computer without having the perma black screen thru windows safe mode. I read that you have underclock the gpu to help ease the psu if power is the problem. I dont know much when it comes to computers I tried for like 15hours by myself with no luck so Now im here on my knees beggin haha.
Thanks

Quote
Well just bought me A 600 watt thermaltake
Thats a bit rash
Didn't you want to test first and then make such a decision ?
By all means get a better PSU but I would have first checked out the card on another known working system.

Black screen, no power...

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