Power cut black screen!
Hello. Power cut over the weekend has resulted in a black screen. Mac chimes and sounds like it is running but screen is black / blank. Is there anything i can do myself without jeopardising any saved data? Thanks ever so - Jim
Resetting NVRAM / PRAM
Shut down your iMac.
Locate the following keys on the keyboard: Command (⌘), Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on your iMac.
Press and hold the Command(⌘)-Option-P-R keys
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.
Resetting the SMC for iMac
Shut down your iMac.
Unplug all cables including the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on your iMac.
If resetting the PRAM and SMC didn't work contact Apple Support.
Similar Messages
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Intermittent Power Outages - Black Screen
My screen went black.
I reset my PRAM, which did nothing, and removed the battery and reset my POWER MANAGER, which fixed it temporarily. Long enough for the computer to come back on. But then, it died again. You can hear it go on and off and on and off...dying...off and on...black screen...and then it will come back and then die...and now I am dying... What is going on?
Anyone? Help!If you still under warranty, visit apple store and let them check it for you.
But before that, I would back up the data there and give it another shot by reset PRAM and PMU, reinstall the OS X and update to the most recent firmware and updater, and repair permission after that. And run hardware test to check logic board and memory aswell.
IF the problem persist, then I think you should contact apple, for maybe something bad with the logic board that need to be replaced.
Good Luck, -
AE2220 no power, just black screen.
I opened up my AE2220 to clean the fan. After I closed it up again it doesn't work anymore.
It starts up, the blue led lights up, the fan runs, but the screen stays black and I have no power in my USB ports as well.
Can anybody tell me what to do?
Thanks in advance!!If you have no video how can you say the displays are fine? Were they tested on another machine?
What kind of monitor(s)?
How many?
What video connection(s) are you using, i.e., DVI or mini displayport?
Is the video card fan running (I've had a history of failing 5870 video card fans -- two so far)?
Are any diagnostic leds lit inside? -
Satallite Pro 440cdx does not power up - black screen
I have a Satellite Pro 440cdx.
Laptop has been sitting for while under bit unknown condition.
When bought it I just got power supply for it. Charging battery light is on.
Computer powers up, I can hear HDD running but then there it no picture on screen.
What can I do or what would the problem could be?Try to remove the battery from the notebook and disconnect the AC adaptor for a while.
Wait about 20-30min and connect both parts again.
Then try to power up the notebook and check if the screen will appears.
In most similar cases this procedure helped so maybe it helps you too.
Good luck -
my pc get cant boot up.. power on but black sceen..
Quoted from Apple's "How to write a good question"
To help other members answer your question, give as many details as you can.
Include your product name and specs such as processor speed, memory, and storage capacity. Please do not include your Serial Number, IMEI, MEID, or other personal information.
Provide the version numbers of your operating system and relevant applications, for example "iOS 6.0.3" or "iPhoto 9.1.2".
Describe the problem, and include any details about what seems to cause it.
List any troubleshooting steps you've already tried, or temporary fixes you've discovered. -
I have an old imac G5 (non Intel) The screen went blank but the fan turns very loudly. I cannot reboot the computer. whenever I start it I get power and black screen and the fan comes on loudly after about 30 secs. I have tried rebooting pressing varius keys, but no luck. I once got the flashing question mark, but I can't get that either. I'd like to reboot from the disc, but I cannot insert a disc. Any help out there??
If zapping the PRAM does not get it working, it's time for a new iMac. Repairs will not be worth the cost. Put it towards a new iMac.
I've been there, done that. Had my burial last summer. -
Refreshing to black screen every 3 seconds
refreshing to black screen with the power wheel every 3-5 seconds and won't boot down unless.
I reset and continue to hold down the home and up button. then it shuts down
It does boot up and I can log in but again every 3-5 seconds it goes the the power wheel black screen- Try a reset.
Reset iPod touch: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Then connect to your computer and try to restore again. I would restore to factory defaults/new iPod
- If you can't restore and the iPod is acting the same. let the battery fully drain. After charging for at least an hour try the above again. -
MSI GE60 OND-614SA BLACK SCREEN
hi guys need your help/assistance/opinion and solution about my msi ge60.
1. i always leave my laptop at home open, when i come home. it wont boot anymore.
2. when i press power, only black screen.
3. no indication of led's reading hard drive or something. the only led light is the power led.
4. i already risk the warranty on my part because i open it thinking that maybe its just a memory problem or hard drive problem.
5. but still the same.
anyone have idea or same problem with me.
thanks.Quote from: ilokaok_99 on 24-January-14, 00:54:13
ive read already the topics that could help to solve this issue. but the problem is that their issue is not the same like me...when i open my laptop...only black screen nothing else happening...i try the ec reset...nothing happened...
Did you try hard rebooting? Is the AC plugged in? Is the led blinking or just shinning? -
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. -
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 -
Froze on black screen and power button does not work
my sons ipod touch is stuck on a black screen when plugged into the computer got a spinning wheel and will not connect now spinning wheel will not go away the power button does not work so can not reset it manually
any suggestions would be appreciated- iOS: Not responding or does not turn on
Neglect the reset and when it says place the iPod in recovery mode use one of thes programs
- 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 -
Mid-2010 15in. MacBook Pro going to black screen requiring reset by holding power button
Hello all,
I have been searching for a problem solution for quite some time now. I have a mid-2010 15" Macbook Pro (2.4GHz Intel I5; 4 GB mem) updated to version 10.7.5. The computer randomly goes to a black screen, while the program / movie / whatever is still running (I can hear the sound) and then stalls. I then have to hold the power button down until it will reset. I will post the error message at the end of this.
I have wiped the computer clean and reinstalled everything and that did not help. I am no longer under Apple warrenty and hoping that someone has experienced. Short of me finding an answer I will take it in to Apple. Thanks in advance for any help!
Error report:
Interval Since Last Panic Report: 9808 sec
Panics Since Last Report: 1
Anonymous UUID: 716F24AA-2763-4A12-A3CA-877FE127FD02
Sat Sep 28 14:06:10 2013
panic(cpu 2 caller 0xffffff7f81425007): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xc0000000 0xffffff809e52e000 0x0a5480a2, D0, P2/4
Backtrace (CPU 2), Frame : Return Address
0xffffff807b1d37e0 : 0xffffff8000220792
0xffffff807b1d3860 : 0xffffff7f81425007
0xffffff807b1d38f0 : 0xffffff7f8151db83
0xffffff807b1d3950 : 0xffffff7f8151dbf7
0xffffff807b1d39c0 : 0xffffff7f823ad855
0xffffff807b1d3b00 : 0xffffff7f81541ddd
0xffffff807b1d3b30 : 0xffffff7f8142ed6a
0xffffff807b1d3be0 : 0xffffff7f8142a43c
0xffffff807b1d3dd0 : 0xffffff7f8142be4a
0xffffff807b1d3eb0 : 0xffffff7f813c032c
0xffffff807b1d3f00 : 0xffffff7f82570c0b
0xffffff807b1d3f50 : 0xffffff7f825714b2
0xffffff807b1d3f70 : 0xffffff800023dbbc
0xffffff807b1d3fb0 : 0xffffff8000820057
Kernel Extensions in backtrace:
com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f813 be000->0xffffff7f816b9fff
dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f8082b000
dependency: com.apple.iokit.IONDRVSupport(2.3.4)[7C8672C4-8B0D-3CCF-A79A-23C62E90F895]@0xff ffff7f813ac000
dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[D0A1F6BD-E66E-3DD8-9913-A3AB8746F422]@0 xffffff7f81373000
com.apple.nvidia.nv50hal(7.3.2)[38ACBB3D-4E3C-3883-9A4B-67F15592905F]@0xffffff7 f82248000->0xffffff7f8256afff
dependency: com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f813 be000
dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f8082b000
com.apple.driver.AGPM(100.12.75)[4EBF3D1C-F65A-32E5-8C97-B8AA89FD05FC]@0xffffff 7f8256e000->0xffffff7f8257efff
dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f8082b000
dependency: com.apple.driver.IOPlatformPluginFamily(5.1.1d6)[57AAAA9E-4530-35EE-ACB1-A4E893 53D507]@0xffffff7f80a89000
dependency: com.apple.iokit.IONDRVSupport(2.3.4)[7C8672C4-8B0D-3CCF-A79A-23C62E90F895]@0xff ffff7f813ac000
dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[D0A1F6BD-E66E-3DD8-9913-A3AB8746F422]@0 xffffff7f81373000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
11G63
Kernel version:
Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5
System model name: MacBookPro6,2 (Mac-F22586C8)
System uptime in nanoseconds: 12779383361706
last loaded kext at 302561508520: com.apple.filesystems.msdosfs
Model: MacBookPro6,2, BootROM MBP61.0057.B0C, 2 processors, Intel Core i5, 2.4 GHz, 4 GB, SMC 1.58f17
Graphics: NVIDIA GeForce GT 330M, NVIDIA GeForce GT 330M, PCIe, 256 MB
Graphics: Intel HD Graphics, Intel HD Graphics, Built-In, 288 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80AD, 0x484D54313235533642465238432D47372020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x93), Broadcom BCM43xx 1.0 (5.106.198.19.22)
Bluetooth: Version 4.0.8f17, 2 service, 11 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: ST9320325ASG, 320.07 GB
Serial ATA Device: MATSHITADVD-R UJ-898
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: BRCM2070 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 5
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8218, 0xfa113000 / 8
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0xfa120000 / 4
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa130000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0xfd110000 / 4
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3You have the MacBookPro6,2, the Edsel of Macs. It may be covered by this program:
MacBook Pro (15-inch, Mid 2010): Intermittent black screen or loss of video
Make a "Genius" appointment at an Apple Store, or go to another authorized service provider, to have the machine tested. The routine hardware diagnostics used by service providers may not detect the fault. There is a specific test for this issue.
Print the first page of the panic report, and the support page linked above, and bring them with you.
Note that the replacement program only applies within three years of purchase. If you wait beyond that date, Apple may refuse the service. In that case, you'll be quoted a price of about $300 (in the U.S.) for a depot repair. The model was discontinued in February 2011, so the replacement program will be ending quite soon.
Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros* (do this only if you have at least two complete, independent backups, and you know how to restore to an empty drive from any of them.) Don’t erase the recovery partition, if present.
Sometimes the replacement part is also defective, so be prepared for that possibility.
If it's too late for your unit to be repaired under the program, and you don't want to pay for a new logic board, you may be able to stop the panics by disabling automatic graphics switching.
*An SSD doesn't need to be zeroed. -
Black screen, powers up without hitting power button
After 6 months my iMac G5 20" rev. B working fine (other than failing to sleep automatically - will sleep display but hard drive does not power down) I'm having problems. The screen goes black and I cannot re-boot: I get power but the screen either stays black or, sometimes, freezes at gray. I have repeatedly tried resetting PRAM and PMS.
After 1.5 hours with an AppleCare rep, with no success starting the machine, I took it to my local Apple Store and (of course) they were unable to replicate the problem, although they did run Techtool on it all day and found no problems with either the hard drive or the memory. (I'm a little ticked that they didn't even bother to read the notes from the AppleCare rep - the attitude seemed to be that neither the AppleCare rep nor I knew what the heck we were talking about.)
So I took it back home and lo and behold it did start up normally. So (after backing up my files) I did a complete erase with only stock Apple programs reinstalled. It worked fine for a few hours but then the exact same thing happened: black screen, unable to start up although I get power (the screen stays frozen at black for about 60 seconds, and then the fans come on full speed which I understand is because there's no OS running to regulate them). Only now there's one new development: whenever I plug the iMac back in - whether by pulling the plug out of the back of the unit, or unplugging the cord at its far end - the computer automatically powers up without my pressing the power button. That happens even after I've used the power button to turn it off. That seems weird as well as potentially a safety issue.
I have it in for servicing again - this time, to the local reseller I bought it from, because they don't require an appointment and force you to wait around for hours merely watching them run Techtool - after another hour-long session with an AppleCare rep was unable to get it working and the rep said it was "definitely" a hardware problem. I'm just wondering if anyone else has had similar issues: especially the "powers on without pushing the power button" phenomenon.
I have 2G aftermarket RAM but don't think that's the problem because the same issues occur regardless which RAM stick is in the machine, even after resetting PRAM and PMS and doing the system erase and install. Also, the Apple Store did test the memory with Techtool and said it was fine.After again experiencing problems I took the iMac back to the reseller where I bought it. They were able to replicate the defect and I received a new logic board. The invoiced cost (covered by warranty, luckily!) was $1,067 for the logic board and $85 for labor. The hard drive was erased but OSX Tiger was pre-installed when I picked up the computer. (BTW, Backup 3 is a very nice backup utility!) Now my iMac seems to be working perfectly, and the energy saver/sleep function works normally again.
-
Issue: One day I unplug the power, the screen freezes and I get frozen music sound. I shut down, start up, I get 3 beeps (1 short 2 long), which indicates a Video failure according to the Thinkpad Laptop beep code list.
How I solve the issue day-to-day: I turn the heat up - I disconnect the battery and hard drive and plug in the power then turn it on. I will wait until the underneath is searing hot with a blanket blocking the fan's flow of air, I mean way hot because any
cooler and it won't start. Plug stuff back in, Hard drive first, Battery second, turn off with power button hold, unplug power, replug power.
I turn it on, no beeps, it goes past the first Lenovo screen, then gives me a prompt because it "didn't shut down properly" and continue regular startup. What happens next is the Windows logo appears,
and just as the animated windows logo starts to move (you see 2 small colored dots on the screen), it freezes. I see this every time, I know naturally that it means that the laptop is still too hot to go past that point, so I shut it down and try again. After
about 5 - 10 tries it will go past the splash screen and into the login area, then it's all fine.
Sometimes when I unplug the power from the back by accident it will freeze. By accident I mean that the connector wiggles it's self out easily. This unplug freezing thing started happening about 1 week before the 3 beep black screen problem started rolling,
so I'm putting 2 together.
Errors:
I got a Blue Screen of Death the first time I started it up with the overheating ritual, but I never got it since. It was 0X7B.
I got another Blue Screen of Death about a week ago, but came as it was on already and I had been using it, and said something about disabling Cache or Shadowing in BIOS. I never got it since.
Event Viewer events found:
1. Kernel-Power, Summary page.
There are critical events for a few things like Kernel-Power, Event ID 41, Task Category (63). There are 19 of them, each day 1 or 2 of them but mostly 1, so this maybe corresponds to my daily ritual.
"The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly."
2. Kernel-Processor-Power - Event ID 37, task category (7)
"The speed of processor 1 in group 0 is being limited by system firmware. The processor has been in this reduced performance state for 71 seconds since the last report."
3. LMS - HCMI - Event ID 2, Task Category: none
"LMS Service cannot connect to HECI driver".
I came across a very sluggish performing control panel for Nvidia before and after this problem, and I tried installing a newer version, which I had to jump through a few hoops to do, like uninstalling first, not just updating. At first it said that the
driver wasnt for the system, which was wrong. I made it work somehow, but it was still sluggish. I rolled it back to an earlier driver, and now it works fine. No sluggish performance / slight freeze window thing going on.
MSCONFIG.exe, Boot Advanced Options: I have tried twice to change this 1 setting, check box "Number of processors" and change to 2 processors, because I do have 2 processors. I have been able to change
this in the past, but it does not save the setting now, and I believe this option was selected before I started having problems, and settings did not disappear then.
What could this be. The small round BIOS battery? The video card like everyone presumes? (I.E. the entire motherboard replacement), Software? The wiggly power input area? (Not enough power getting in?), Firmware of some sort? The BIOS software being wrong?
SYSTEM INFO:
Thinkpad T61p 6457-A24, Intel core 2 duo (T7700) 2.4GHz, Intel 120GB SSD 6Gb/s, NVIDIA Quadro FX 570M (256 MB),
Windows 7 64 bit Home Premium (6.1, Build 7601), BIOS Ver 1.00PARTTBLx
Display: 1680 x 1050 (32 bit 60 Hz), Integrated RAMDAC, Main driver: nvd3dumx.dll,nvwgf2umx,nvwgf2,
Version 8.17.12.9688, Date 5/31/2012, DDI version 10, Driver model WDDM 1.1
Please excuse the small text at the beginning, there isn't an option to un-do that error.You are very wrong about that mystified. What do YOU think made my computer work without beeping at all hu? (I bet you're gonna tell me). I figured it out.
RE-INSTALL WINDOWS 7 OS.
SOLVED.
DOESN'T BEEP ANY MORE.
THAT IS A PART OF microsoft ISN'T IT.
::: EGO KILLER 9000 ::: -
I have been faced with a Black screen this morning when I have gone to sign in/open my Macbook air this morning. I can see that the keyboard seems to be on as the caps key when pressed is lighting up as is my charger cable link, however have noticed that the apple logo is not lit up. Any thoughts?
Try resetting SMC and NVRAP and then reboot.
http://support.apple.com/kb/HT3964
http://support.apple.com/kb/PH4405
Try booting the Recovery Partition. Power off, boot and then hold down the Command and R keys. Is the screen still black? If so it is not a software problem so take it in for diagnosis and repairs. Make a Genius Bar reservation http://www.apple.com/retail/geniusbar/ or find an Apple Authorized Service Provider https://locate.apple.com/country .
If you are running Mavericks try upgrading to 10.9.2. It has a fix for black screen problems.
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