IMac screen suddenly turns black

iMac screen suddenly turns black

Suddenly shuts down, after few moments can be started and used again like normal. Started occurring when mouse and key board batteries where low ? coincidence-- batteries now changed but still happened once.

Similar Messages

My iMac screen suddenly turn black and white when I'm in fullscreen mode. What could be the cause of this problem?

Hi, once in a while the screen on my 5K imac turns black and white when I'm on youtube watching videos in fullscreen mode. It also exits the fullscreen mode automatically from one second to the next and a warning pops up saying how I can exit the fullscreen mode. Does anyone have an idea why this happens and if this is a software or hardware problem?

I'm using a Dell laptop with Windows 7. I've set the resolution to 1024x768, though the maximum resolution on this can go as high as 1366x768. So this is a problem that no one has been able to figure out? I've ran lots of other Flash-based applications that went fullscreen with no problem, so I'm wondering what other methods there are to try, if possible.

Mac pro mid 2010 - screen suddenly turns black

hi everybody,
since today my Mac pro (snow leopard) does the following:
Sometimes the screen suddenly turns black. Only the Cursor can be seen (sometimes not even that).
When I reboot the system everything seems fine, but after a few minutes the same problem occurs.
Unfortunately I'm not able to copy the specifications of my system because the black screen is faster than I am after a reboot.
I would be glad if anybody knew what I can do about it.
Thanks guys! Chris

Safe Mode does the equivalent of a Disk Utility (Repair Disk) while it puts up that progress bar. It never get more than about 1/3 of the way across, even when everything is great. But if your drive is un-mountable after the repair cycle, your Mac cannot start up, and it will shut down.
NOT shutting down is a good sign.
Safe Mode should continue and load a minimal set of Apple-only Drivers. It does NOT load the graphics card Driver, which is why it can be useful to learn more about your graphics card.
If you are using your Boot SSD for everything, and are not using TRIM, your SSD may be clogging up with deleted data. There are several ways to eliminate or reduce the deleted data.
One way is to run any system, 10.6.8 or later, with TRIM Enabler installed, and run one pass of Disk Utility (Repair Disk) with TRIM active. This presents one additional line of output:
"Trimming unused blocks"
and pauses for up to a minute while the unused blocks are TRIMmed.
TRIM Enabler has become much more difficult to install on 10.9.5 and later, because it conflicts with the new Kernel-extension signing feature.
Edit> If you are really running 10.6.8, you can install TRIM Enabler in your active System. It is free, but be sure to get the correct version for your system. There is an advanced-features version also available for a modest charge.

Macbook screen suddenly turns black

Hi everybody.
I have a macbook pro since 20 months now.
I turn it off very rarely but, many times, I have had the problem that, after awaking it from sleep mode, the screen suddenly turns black and I have to turn the macbook down. This problem happens approximately 1 time every two months.
Here are my macbook details and the report of the problem. I hope you can help me.
Macbook pro (10.7.5): 2,4 Ghz Intel Core i5
Memory: 8 GB 1067 MHz DDR3
Graphics: NVIDIA GeForce GT 330M 256 MB
Report of the issue:
Interval Since Last Panic Report: 893598 sec
Panics Since Last Report:          1
Anonymous UUID:                    20EFC9FF-22F2-43E8-BC05-C3D5EFD71319
Sun Dec 2 17:44:12 2012
panic(cpu 3 caller 0xffffff7f80a0a007): NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff8114475000 0x0a5480a2, D0, P3/4
Backtrace (CPU 3), Frame : Return Address
0xffffff8101a830c0 : 0xffffff8000220792
0xffffff8101a83140 : 0xffffff7f80a0a007
0xffffff8101a831d0 : 0xffffff7f80b02b83
0xffffff8101a83230 : 0xffffff7f80b02bf7
0xffffff8101a832a0 : 0xffffff7f80e04855
0xffffff8101a833e0 : 0xffffff7f80b26ddd
0xffffff8101a83410 : 0xffffff7f80a13d6a
0xffffff8101a834c0 : 0xffffff7f80a0f43c
0xffffff8101a836b0 : 0xffffff7f80a0febe
0xffffff8101a837a0 : 0xffffff7f81ece940
0xffffff8101a83830 : 0xffffff7f81eceac0
0xffffff8101a83850 : 0xffffff7f81ecbb6e
0xffffff8101a83890 : 0xffffff7f81ee024e
0xffffff8101a838d0 : 0xffffff7f81e8af15
0xffffff8101a83900 : 0xffffff7f81ed8738
0xffffff8101a83930 : 0xffffff7f81edb041
0xffffff8101a83a40 : 0xffffff7f81e8fa73
0xffffff8101a83c20 : 0xffffff7f81e8fe6a
0xffffff8101a83c40 : 0xffffff8000656fbb
0xffffff8101a83d80 : 0xffffff80002a3f08
0xffffff8101a83e80 : 0xffffff8000223096
0xffffff8101a83eb0 : 0xffffff80002148a9
0xffffff8101a83f10 : 0xffffff800021bbd8
0xffffff8101a83f70 : 0xffffff80002aef10
0xffffff8101a83fb0 : 0xffffff80002daec3
      Kernel Extensions in backtrace:
         com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f809 a3000->0xffffff7f80c9efff
            dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f8076c000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[7C8672C4-8B0D-3CCF-A79A-23C62E90F895]@0xff ffff7f80991000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[D0A1F6BD-E66E-3DD8-9913-A3AB8746F422]@0 xffffff7f80958000
         com.apple.nvidia.nv50hal(7.3.2)[38ACBB3D-4E3C-3883-9A4B-67F15592905F]@0xffffff7 f80c9f000->0xffffff7f80fc1fff
            dependency: com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f809 a3000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f8076c000
         com.apple.GeForce(7.3.2)[7E1D7726-416F-3716-ACCB-E1E276E35002]@0xffffff7f81e740 00->0xffffff7f81f36fff
            dependency: com.apple.NVDAResman(7.3.2)[97284661-2629-379E-B86B-D388618E8C30]@0xffffff7f809 a3000
            dependency: com.apple.iokit.IONDRVSupport(2.3.4)[7C8672C4-8B0D-3CCF-A79A-23C62E90F895]@0xff ffff7f80991000
            dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f8076c000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.4)[D0A1F6BD-E66E-3DD8-9913-A3AB8746F422]@0 xffffff7f80958000
BSD process name corresponding to current thread: WindowServer
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: 153976779186579
last loaded kext at 139467412741830: com.apple.driver.AppleUSBEthernetHost    2.3.6 (addr 0xffffff7f80845000, size 28672)
last unloaded kext at 140047186917169: com.apple.driver.AppleUSBEthernetHost    2.3.6 (addr 0xffffff7f80845000, size 20480)
loaded kexts:
com.parallels.kext.prl_vnic    7.0 15107.796624
com.parallels.kext.prl_netbridge    7.0 15107.796624
com.parallels.kext.prl_hid_hook    7.0 15107.796624
com.parallels.kext.prl_hypervisor    7.0 15107.796624
com.parallels.kext.prl_usb_connect    7.0 15107.796624
com.rim.driver.BlackBerryUSBDriverInt    0.0.67
com.apple.driver.AppleBluetoothMultitouch    70.12
com.apple.nke.pppoe    1.7
com.apple.filesystems.smbfs    1.7.2
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.filesystems.autofs    3.0
com.apple.driver.AudioAUUC    1.59
com.apple.driver.AGPM    100.12.75
com.apple.driver.AppleMikeyHIDDriver    122
com.apple.driver.AppleHDA    2.2.5a5
com.apple.driver.AppleMikeyDriver    2.2.5a5
com.apple.iokit.IOUserEthernet    1.0.0d1
com.apple.iokit.IOBluetoothSerialManager    4.0.8f17
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AudioIPCDriver    1.2.3
com.apple.driver.AppleUpstreamUserClient    3.5.9
com.apple.driver.ApplePolicyControl    3.1.33
com.apple.driver.AppleSMCPDRC    5.0.0d8
com.apple.driver.AppleSMCLMU    2.0.1d2
com.apple.driver.ACPI_SMC_PlatformPlugin    5.0.0d8
com.apple.driver.AppleMuxControl    3.1.33
com.apple.driver.AppleLPC    1.6.0
com.apple.driver.AppleMCCSControl    1.0.33
com.apple.GeForce    7.3.2
com.apple.driver.AppleIntelHDGraphics    7.3.2
com.apple.driver.AppleIntelHDGraphicsFB    7.3.2
com.apple.driver.SMCMotionSensor    3.0.2d6
com.apple.driver.AppleUSBTCButtons    227.6
com.apple.driver.BroadcomUSBBluetoothHCIController    4.0.8f17
com.apple.driver.AppleIRController    312
com.apple.driver.AppleUSBCardReader    3.0.6
com.apple.driver.AppleUSBTCKeyboard    227.6
com.apple.iokit.SCSITaskUserClient    3.2.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless    1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.BootCache    33
com.apple.driver.XsanFilter    404
com.apple.iokit.IOAHCIBlockStorage    2.1.0
com.apple.iokit.IOAHCISerialATAPI    2.0.3
com.apple.driver.AppleUSBHub    5.1.0
com.apple.driver.AppleFWOHCI    4.9.0
com.apple.driver.AirPort.Brcm4331    561.7.22
com.apple.iokit.AppleBCM5701Ethernet    3.2.4b8
com.apple.driver.AppleEFINVRAM    1.6.1
com.apple.driver.AppleSmartBatteryManager    161.0.0
com.apple.driver.AppleRTC    1.5
com.apple.driver.AppleUSBEHCI    5.1.0
com.apple.driver.AppleACPIButtons    1.5
com.apple.driver.AppleAHCIPort    2.3.1
com.apple.driver.AppleHPET    1.7
com.apple.driver.AppleSMBIOS    1.9
com.apple.driver.AppleACPIEC    1.5
com.apple.driver.AppleAPIC    1.6
com.apple.driver.AppleIntelCPUPowerManagementClient    195.0.0
com.apple.nke.applicationfirewall    3.2.30
com.apple.security.quarantine    1.4
com.apple.security.TMSafetyNet    8
com.apple.driver.AppleIntelCPUPowerManagement    195.0.0
com.apple.driver.AppleMultitouchDriver    231.4
com.apple.driver.IOBluetoothHIDDriver    4.0.8f17
com.apple.nke.ppp    1.7
com.apple.kext.triggers    1.0
com.apple.driver.DspFuncLib    2.2.5a5
com.apple.iokit.IOSurface    80.0.2
com.apple.iokit.IOSerialFamily    10.0.5
com.apple.iokit.IOAudioFamily    1.8.6fc18
com.apple.kext.OSvKernDSPLib    1.3
com.apple.iokit.IOFireWireIP    2.2.5
com.apple.driver.AppleHDAController    2.2.5a5
com.apple.iokit.IOHDAFamily    2.2.5a5
com.apple.driver.IOPlatformPluginLegacy    5.0.0d8
com.apple.driver.AppleSMBusPCI    1.0.10d0
com.apple.driver.AppleGraphicsControl    3.1.33
com.apple.driver.IOPlatformPluginFamily    5.1.1d6
com.apple.driver.AppleBacklightExpert    1.0.4
com.apple.driver.AppleSMBusController    1.0.10d0
com.apple.nvidia.nv50hal    7.3.2
com.apple.NVDAResman    7.3.2
com.apple.iokit.IONDRVSupport    2.3.4
com.apple.iokit.IOGraphicsFamily    2.3.4
com.apple.driver.AppleSMC    3.1.3d10
com.apple.driver.AppleUSBBluetoothHCIController    4.0.8f17
com.apple.iokit.IOBluetoothFamily    4.0.8f17
com.apple.driver.AppleUSBMultitouch    230.5
com.apple.iokit.IOUSBHIDDriver    5.0.0
com.apple.driver.AppleUSBMergeNub    5.1.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice    3.2.1
com.apple.iokit.IOBDStorageFamily    1.7
com.apple.iokit.IODVDStorageFamily    1.7.1
com.apple.iokit.IOCDStorageFamily    1.7.1
com.apple.iokit.IOUSBUserClient    5.0.0
com.apple.iokit.IOFireWireFamily    4.4.8
com.apple.iokit.IO80211Family    420.3
com.apple.iokit.IOEthernetAVBController    1.0.1b1
com.apple.iokit.IONetworkingFamily    2.1
com.apple.driver.AppleEFIRuntime    1.6.1
com.apple.iokit.IOHIDFamily    1.7.1
com.apple.iokit.IOAHCIFamily    2.0.8
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.sandbox    177.8
com.apple.kext.AppleMatch    1.0.0d1
com.apple.driver.DiskImages    331.7
com.apple.driver.AppleKeyStore    28.18
com.apple.iokit.IOUSBMassStorageClass    3.0.3
com.apple.driver.AppleUSBComposite    5.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice    3.2.1
com.apple.iokit.IOStorageFamily    1.7.2
com.apple.iokit.IOSCSIArchitectureModelFamily    3.2.1
com.apple.iokit.IOUSBFamily    5.1.0
com.apple.driver.AppleACPIPlatform    1.5
com.apple.iokit.IOPCIFamily    2.7
com.apple.iokit.IOACPIFamily    1.4
Impossibile ottenere informazioni sulla configurazione di sistema.Model: MacBookPro6,2, BootROM MBP61.0057.B0F, 2 processors, Intel Core i5, 2.4 GHz, 8 GB, SMC 1.58f16
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, 4 GB, DDR3, 1067 MHz, 0x0000, 0x000000000000000000000000000000000000
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1067 MHz, 0x0000, 0x000000000000000000000000000000000000
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, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: Hitachi HTS545032B9SA02, 320,07 GB
Serial ATA Device: HL-DT-ST DVDRW GS23N
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: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfa130000 / 4
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0237, 0xfa120000 / 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 / 3

I've just now today experienced this problem, I had purchased MacbookPro with Snow Leopard, then upgraded to Lion which was actually a disappointment. I tried to use the Apple Recover Lion and downloaded it to my external drive. Then, tried to use it -that's when the problem started I got the panic screen. This has not happened for several months since the Lion upgrade, and only happened when I tried to reinstall Lion. Now taking it back to the Mac dealer to figure out what is causing this new issue. I am writing this from my old HP laptop -which is running fine with Windows 7. Don't know if buying a Mac was a good idea. This seems to be a software issue with the downloaded recovery program, Apple should fix this asap not in 6 months, there are posts about this for a year now.

Screen suddenly turns black!

I have an early 2006 Intel iMac 20 inch running 10.5.3. Once in a while when I'm working, the screen just turns black. No response. The fan is running, but no response whatsoever. I have to shut down and reboot. The last time, I saw some patches of colorful flickering and then it turned black.
For the past few months, I've also seen some segments of the screen very distorted, with strange geometric shapes with stretched text, which disappears when I select it and click again. I wonder if this is related.

Try resetting the SMC: http://support.apple.com/kb/HT1543?viewlocale=en_US
Also try resetting the PRAM: http://support.apple.com/kb/HT1379?viewlocale=en_US
After resetting the PRAM go into your System Preferences and make sure your startup disk is chosen. http://ftp.georgetek.com/George/Startup%20Disk%2010.5.png
Install iStat Pro to check your internal temperatures and make sure your fans are working ok: http://www.versiontracker.com/dyn/moreinfo/macosx/27037
Do you have Apple Care?
George

My screen suddenly turned black and wont start again

I was using my computer as usual when the screen suddenly turned off. It wont start again! I'm a musician and work with my computer!! Today I have a show and wont be able to use it!! I'm desperate Please, can anybody help!!
Thanks a lot!!!

It sounds like you had a hardware failure. You can try doing a SMC reset, read the instructions carefully though as they cover multiple models of Macs. If that doesn't help I think it's time to contact a AASP. The AASP site is for the US, you will need to find one in Brazil though.
Good luck!
Roger

IMac screen issues-turns black then to log-in screen

I own a late 2102 iMac, 21.5 inch. 2.9GHz Intel Core i5 with 8GB memory. Storage=1 Terabyte. Running Yosemite 10.10.1. Several times in the past two months while I am using my iMac, my screen has become very bright, then suddenly switches to a black screen with just the cursor showing. It then switches to the user login screen. Today I was just syncing my iPhone 5S to iTunes. Nothing radical. In the past, I was using Word or sending an iMessage. Instead of logging back on as the same user, I opted to restart. When I restarted, iTunes opened back up as did PowerPoint, which was random since I hadn't been using PowerPoint nor was it even open in the Dock. I have restarted the iMac on several occasions using Command-R and ran Disk Utilities with no problems showing up. Has anyone else experienced the same or similar problem? Is it a Yosemite problem or a hardware problem? Any solutions?

1) You need to Find the crack on Sim 3 game on Google and Copy and replace the File with new crack and problem will get solved.
Try downclocking your >>GPU<<
try lowering it more and keep testing with each one. If you have another power supply test with that(but its HIGHLY unlikely that its your psu). But overclocked cards demand more power as far as i know and it might be getting tough for the psu to handle.
And is the space freeing up on only c drive? It happens all the time. temp files getting deleted and all that. but virus scan and chkdsk wouldnt hurt..................
Take pleasure in knowing that your problem is nothing compared to what most people i stated above are facing. they cant for more than ten minutes. your crash occurred only watch serials once and a after a long time right? see if it happens again. it might get more frequent in which case you problem is very .....problematic.

IPod Touch 5gen screen suddenly turned BLACK???? PLEASE HELP and give me a useful reply!

PLEASE PLEASE HELP ME I'M FREAKING OUT.
Ok so I DO NOT HAVE WARRANTY ANYMORE. My ipod is over an year old.
Ok my ipod was working fine and I put it in my backpack and when I took it out 5mins later and tried to turn it on with the top button (since my home button DOES NOT WORK and is STUCK, idk how that happen either ugh) it would NOT turn on. My ipod was around 50% battery (plz do not say the battery indicator is unreliable because it was half charged). So I plug into my computer and itunes won't recognize it and I plug it to a wall charger and it wont turn on!!!!!!
Please give me a useful reply!

If your iPod Touch, iPhone, or iPad is Broken
Apple does not fix iDevices. Instead, they exchange yours for a refurbished or new replacement depending upon the age of your device and refurbished inventories. On rare occasions when there are no longer refurbished units for your older model, they may replace it with the next newer model.
ATTN: Beginning July 2013 Apple Stores are now equipped to do screen repairs/replacements in-house on iPhone 5 and 5C. In some cases while you wait. According to Apple this is the beginning of equipping Apple Stores with the resources needed to do most repairs for iPhones, iPads, and iPod Touches that would not require major replacements. Later in the year the services may be extended as Apple Stores become equipped and staffed with the proper repair expertise. So, if you need a screen repaired or a broken screen replaced or have your stuck Home button fixed, call your local Apple Store to see if they are now doing these in-house.
You may take your device to an Apple retailer for help or you may call Customer Service and arrange to send your device to Apple:
Apple Store Customer Service at 1-800-676-2775 or visit online Help for more information.
To contact product and tech support: Contacting Apple for support and service - this includes international calling numbers.
You will find respective repair costs in the appropriate link:
iPod Service Support and Costs
iPhone Service Support and Costs
iPad Service Support and Costs
There are third-party firms that do repairs on iDevices, and there are places where you can order parts to DIY if you feel up to the task:
1. iResq or Google for others.
2. Buy and replace screen yourself: iFixit

Screen of my iphone 4s suddenly turns black

whenever i use my iphone 4s the screen suddenly turns black. nothing happens if i press the home button or the lock button. but when i change the sound to silent it vibrates? when i touch the screen nothing happens.

try a reset, hold down the home/power button until you see the apple logo and then release, then wait for the phone to boot back up.

My iMac is less than one year old. Without warning, the screen suddenly goes black. It used to happen occasionally, but is now happening all the time without warning. What is Apple doing to correct the problem?

My iMac is less than one year old. Without warning, the screen suddenly goes black. It used to happen ocasionally, but now it happens all the time. Numerous people have posted about this issue. Why hasn't Apple solved the issue. For what I paid my computer, I expected more from the product than I have gotten. I was a PC person for years and most of my associates told me that I needed to get a mac...I am starting to regret having taken their advice.

Sorry you're having this problem.
A few years ago we had a similar issue on one of our machines, it was an early MacBook. Ended up being a cracked circuit connection on the motherboard. Changes in temperature caused the crack to expand and contract resulting in a shut-down followed by an automatic reboot. Sometimes over-and-over. I understood from AppleCare at the time that those symptoms could have also been any number of things including a intermittent issue with a powersupply.
If you take it back to the Apple Store at some point, I would ask them to have it run some CPU intensive tasks that closely resemble what you are doing when the screen goes black. It took us several try's to find the problem. Calling AppleCare each time to discuss it and troubleshoot before making the trips to the Apple Store really moved things along. In fact, it wasn't until the Apple Store had cracked the case from the inside that things kicked into a higher gear and AppleCare phone support sent out a pre-paid FedX package to send it to a refurbishing facility. Never a problem since and I know the people who have the machine today.
PS Can identify with the trip to the Apple Store, our closest one is in Knoxville, 2hrs from us.

FlashPlayer suddenly turns black screen, urgent plz help

I am a game developer. my game work fine for two months. but recently some player told me that when in playing games flashplayer suddenly turns black screen. when i using flashplayer debug. it didn't throw any excepetion or error. and when i right click in flashplayer content. the menu show 2 opptions. do not load movie and flashplayer verison is 11.6.602.180...
many many player told me about this. and my game is still running for all the player. so plz help, verry urgent, thx

If they are on Windows, they may need to update their display adapter drivers; see http://forums.adobe.com/thread/945765

20"iMac Display Suddenly Goes Black

While I am using my iMac, occasionally suddenly goes black. If I hit a key (usually the space bar), it comes back as if I had put it to sleep.
What is happening? What should be done? What can I do?
Thanks for your help and information.

"Answered on another forum"
What a way to be helpful! I went through your posts and searched "display" and I did not find this mysterious answer you talk about.
I'm having the same issues on my Intel Core 2 Duo 20" iMac. if ANYONE could post a solution, I'd appreciate it.
The computer is still working correctly. It is not on sleep mode. I've press the power button and it goes to sleep, but then when I wake it up it repeats the black screen a couple of times until it finally settles on letting me work.
What is the point of user support forum if there are no moderators around to help people out? :/

Why does my mac screen randomly turn black

Randomly when I use my imac my screen just turns black! it scares me and its reallllyyy ANOYING!!!!!!!!!!! I JUST UPDATED TO MOUNTAIN LION

What model is your iMac > How to identify iMac models
When was the last time you seriously vacuumed out the air intakes (the bottom grill work and small vent under the stand) to ensure that it is cooling properly?
You also might want the > iStat Pro, a Dashboard Widget by iSlayer, so that you can monitor the internal temps.

Macbook display suddenly turns black

My macbook was working just fine, and I was surfing the net when the display would suddenly turn black, everything is still running, and if I look closely, the screen is just very dark, but i can still see a little bit, I have to press f1 and f2 a few times to get it back to normal.
It happened the first time last night, and it already happened three times since I turned it on today
Is this a common problem?

macbig wrote:
This sounds like a known issue with the Graphics card: http://www.pjentrepreneur.com/2009/01/21/update-mac-book-pro-blank-screen-proble m/
Message was edited by: macbig
That coverage is for the MacBook Pro, not a 2006 MacBook.
+Website Says:+
These are Mac Book Pros manufactured between May 2007 and September 2008.
It could be an issue I've seen with a bad backlight. Try moving the screen in small increments all the way back and all the way forward. This may trigger the screen to go blank. It's either a bad connection between with the display or the LCD has gone bad.
Your MacBook is out of warranty so there might be a cost if you go to an Apple Store to get it fixed. http://www.apple.com/retail/geniusbar to visit a store (if you are in the US. If not I can give you additional information)
Ben

MacBook Pro screen randomly turns black on me for no reason while I'm using it? What's wrong with my MacBook?

I have a MacBook Pro from 2009 and the screen randomly turns black on me for no reason while I'm using it? It takes anywhere from 5 seconds to 1 minute to turn back on and no matter what I do it just has to fix itself so idk if it is going in to sleep mode or what. Anyone know the issue? Thanks.

Run through them and stop after #16 or if the problem stops, or if something tells you something severe (like hardware test giving a error)
If you can backup your personal data off the machine, you should do that first.
Hardware issues we cant' fix, only a few things may fix it.
Software issues we can fix, but right now we don't know what is causing your issue as we can't see it obviously.
So your going through a process of elimination to try to give us a clue what's the problem and then we can advise a course of action.
If you feel this is way over your head, then just make a appointement with Apple and/or your local PC/Mac specialist.
We are only other uesrs here, helping other users.

IMac screen suddenly turns black

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