IMac blank screen at start up, just fan whirl.

Well I've got myself a bit of a problem, my computer is usually left on all the time with the odd restart here and there, anyway it got turned off today while I was out of the house and now it's stopped working.
Simply put, after the startup chime there is nothing but a blank screen, no lights on the keyboard or monitor, none of the start up key combinations will do anything so I can't even open the disk tray to try a Tiger boot dvd.
After scanning these forums I learnt that the PMU may need resetting, so I did that, the actual pressing of the PMU didn't move it much so I hope I pressed hard enough, and turned it back on agin only to be met by that same blank screen.
So is my faithfull iMac G4 dead?
iMac G4 17" Mac OS X (10.4.8)

Try things in Apple doc.#106464 for your startup issue.
Also, try using Disk Utility to repair your startup disk (hard drive) as shown in Dr.Smokes Resolving Disk, Permission, and Cache Corruption. Smokes link will help walk you thru it.
Let us know if Disk Utility reports any problems and what they are.
Cheers!
DALE

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Pavilion p7-110c blank screen on start-up

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Hi,
Your PC is listed as coming with Windows 7 64bit - if this is correct, try the following.
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Windows 7 64bit
You should use an application such as ImgBurn to burn the ISO to a CD - a guide on using ImgBurn to write an ISO to a disc is Here. Once created, or if you already have this, insert the CD into the PC and restart to boot from it. Select the Repair option.
Select the 'Repair your Computer' option and follow Option 2 in the guide on the link below to run Start-up Repair – you may need to run this 2 or 3 times.
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****Click the White thumb to say thanks****
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Macbook pro: blank screen on start up? help!

my macbook pro had a blank screen on start up. I tried restarting it and nothing worked. I could hear the computer running, but nothing would show up on the screen. When I would shine a light at the screen on start up I could faintly see the apple, but after startup it would go completely black. Then, off a whim, I tried plugging it in to our tv via an HDMI cord and it shows up now on the TV but still nothing on the computer display. How do I fix this?

Can you try Command+S for Safe Mode boot? OS X Mavericks: Start up in safe mode
What year/model is your MBP?
You can also see Troubleshooting: My computer won't turn on.
SMC reset may also help - Intel-based Macs: Resetting the System Management Controller (SMC)

Blank screen at start up

Blank screen at start up. Laptop is 1.5 years old, so no longer under warreny. Suggestions on next steps to take?

Hi Lindy, something is indeed wrong, but tough to tell what, let's start with these...
Have you done a PRAM reset, CMD+Option+p+r...
http://support.apple.com/kb/HT1379
In fact, do 3 in a row, takes a bit of time.
Intel-based Macs: Resetting the System Management Controller (SMC)...
http://support.apple.com/kb/HT3964

Blank Screen after start-up chime, won't start

I'm rather perplexed as to what's happened to my PowerBook. I'll run throught it
PowerBook 12" 1.33 768
Background:
I've just updated it to 10.4.4, which caused it to get stuck at the Apple symbol and spinning wheel. I had to restart in single user mode and run applejack, restart again and it was fine.
Recently the PowerBook started to not wake from sleep, I'd have hold down the power button then restart it. I thought it had done teh same thing today, but this time it makes the start-up chime but gets no further than a blank (dark, black) screen.
I tried inserting the Mac OS X CD and start up holding down the C key, but still same blank screen (with the added benefit that I'm now unable to remove the CD)
I tried plugging it into an external monitor, but nothing.
I've tried resetting the Preference RAM and the PMU. With some limited success. On occasion after resetting the PRAM, turning it off then back on, it starts with something like a extra blow of air from the fan and white blank screen instead of a black one. It then won't turn off at all, the only way is to pull the power and the battery.
I've noticed that when the ac adapter is plugged in and i've the white screen it flashes very quickly, orange.
I tried starting in Tartget disc mode connected to an iMac, the disc doesn't appear.
I tried starting up with an external firewire drive attached, nothing.
I've tried starting holding the keys for open firmware mode, nothing.
I've removed the AirPort card, no change.
I removed the extra 512mb RAM with no change.
The screen is clearly working, has anyone any ideas how to get it started?
Any help would be appreciated, it's a second hand PowerBook and so has no AppleCare.
Cheers
Stuart

I had the EXACT same problem happen to me, Stuartea71. My PowerBook crashed on the on Feb. 4th and I still can't figure it out. I had just dowloaded the 10.4.4 update, bought iLife 06, and ordered a new battery.
I tried every single thing that you did above. I finally called customer support, and walked me through a few things which I had already tried, but she finally pin pointed something in disk utility that I missed. My disk would not mount. In red letters it said "failing." She told me that was a internal HD problem that needs to be fixed by a certified tech.
I did something I'd never done before. I put my HD to sleep to optimize battery performance. I work with podcasts and downloaded a large file. Unfortunately I forgot my battery setting. I chalk it up as a lesson learned, and just bit the bullet and ordered a MacBook Pro.
BTW... if you all customer service they basically read directly from the Apple Website. I paid $49 dollars for someone to tell me my mac was broken and send it in.

PLEASE HELP ME! ( IMAC ERROR SCREEN AT START UP )

Hello everyone i have a massive problem that has been scaring me for the past months i have called applecare but they seem to not have the right answer i just hope that one of you people can help me.
i own a imac 27 inch 2011 model and just from couple of months ago i kept getting errors at the grey screen but before the error to appear a little grey screen scrolls from the top but anyway i cannot get a picture of it as my phone takes a while for the camera to appear but once my computer restarts itself ( because of the error ) a message pops up saying " Your computer was restarted because of a problem." i clicked on show details and everything you see below is exactly what is on the message pop up box ( please note that the stars indicate where the details of the error start and end )
*****START*****
Interval Since Last Panic Report: 148012 sec
Panics Since Last Report:          2
Anonymous UUID:                    DA9904ED-1814-4D1F-B45C-E4AB702C22BB
Tue Dec 20 17:12:29 2011
panic(cpu 4 caller 0xffffff80002c266d): Kernel trap at 0xffffff7f818f234b, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000004300000007, CR3: 0x000000002c4da020, CR4: 0x00000000000606e0
RAX: 0x0000004300000006, RBX: 0x0000000000000002, RCX: 0xffffff7f818f5922, RDX: 0xffffff80255ecd40
RSP: 0xffffff81c96cb9a0, RBP: 0xffffff81c96cb9f0, RSI: 0x000000008020690c, RDI: 0xffffff8026fee208
R8: 0x0000000000000000, R9: 0x000000000ffff084, R10: 0xfffffe800d0108b0, R11: 0x000000000001b6e0
R12: 0x0000000000000000, R13: 0x0000000000000000, R14: 0xffffff80253bbc30, R15: 0xffffff80251c60a8
RFL: 0x0000000000010282, RIP: 0xffffff7f818f234b, CS: 0x0000000000000008, SS: 0x0000000000000010
CR2: 0x0000004300000007, Error code: 0x0000000000000000, Faulting CPU: 0x4
Backtrace (CPU 4), Frame : Return Address
0xffffff81c96cb660 : 0xffffff8000220702
0xffffff81c96cb6e0 : 0xffffff80002c266d
0xffffff81c96cb880 : 0xffffff80002d7a1d
0xffffff81c96cb8a0 : 0xffffff7f818f234b
0xffffff81c96cb9f0 : 0xffffff7f818f59b1
0xffffff81c96cba30 : 0xffffff7f818f3a0e
0xffffff81c96cba70 : 0xffffff8000344787
0xffffff81c96cbac0 : 0xffffff800039ca0d
0xffffff81c96cbb30 : 0xffffff800039e213
0xffffff81c96cbcd0 : 0xffffff800033f4c7
0xffffff81c96cbda0 : 0xffffff800033f672
0xffffff81c96cbdd0 : 0xffffff8000563f3f
0xffffff81c96cbe10 : 0xffffff8000563fe0
0xffffff81c96cbe40 : 0xffffff8000531453
0xffffff81c96cbe70 : 0xffffff8000561124
0xffffff81c96cbf60 : 0xffffff80005ca468
0xffffff81c96cbfb0 : 0xffffff80002d7f39
      Kernel Extensions in backtrace:
         com.logmein.hamachi(1.0)[4F10A12D-34FD-ACB0-81FB-036809497AFC]@0xffffff7f818f10 00->0xffffff7f818f6fff
BSD process name corresponding to current thread: hamachid
Mac OS version:
11C74
Kernel version:
Darwin Kernel Version 11.2.0: Tue Aug 9 20:54:00 PDT 2011; root:xnu-1699.24.8~1/RELEASE_X86_64
Kernel UUID: 59275DFA-10C0-30B3-9E26-F7B5DFB1A432
System model name: iMac12,2 (Mac-942B59F58194171B)
System uptime in nanoseconds: 10498414190
last loaded kext at 9863914126: com.parallels.kext.prl_hypervisor          7.0 14920.689535 (addr 0xffffff7f818f9000, size 380928)
loaded kexts:
com.parallels.kext.prl_hypervisor          7.0 14920.689535
com.logmein.hamachi          1.0
com.parallels.kext.prl_usb_connect          7.0 14920.689535
com.apple.filesystems.autofs          3.0
com.apple.driver.AudioAUUC          1.59
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.driver.AppleUpstreamUserClient          3.5.9
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleMCCSControl          1.0.26
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleTyMCEDriver          1.0.2d2
com.apple.driver.AGPM          100.12.42
com.apple.driver.AppleMikeyDriver          2.1.3f7
com.apple.kext.ATIFramebuffer          7.1.4
com.apple.driver.AppleIntelHD3000Graphics          7.1.4
com.apple.driver.AppleHDA          2.1.3f7
com.apple.driver.AudioIPCDriver          1.2.1
com.apple.driver.AppleMuxControl          3.0.16
com.apple.ATIRadeonX3000          7.1.4
com.apple.driver.AppleBluetoothMultitouch          66.3
com.apple.driver.AppleSMCLMU          2.0.1d2
com.apple.driver.AirPort.Atheros40          501.58.1
com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.5d4
com.apple.driver.AppleLPC          1.5.3
com.apple.driver.AppleBacklight          170.1.9
com.apple.driver.AppleIRController          312
com.apple.driver.AppleUSBCardReader          3.0.1
com.apple.iokit.SCSITaskUserClient          3.0.1
com.apple.driver.AppleUSBHub          4.5.0
com.apple.iokit.IOAHCIBlockStorage          2.0.1
com.apple.BootCache          33
com.apple.iokit.AppleBCM5701Ethernet          3.0.8b2
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.driver.AppleFWOHCI          4.8.9
com.apple.driver.AppleUSBEHCI          4.5.5
com.apple.driver.AppleAHCIPort          2.2.0
com.apple.driver.AppleEFINVRAM          1.5.0
com.apple.driver.AppleUSBUHCI          4.4.5
com.apple.driver.AppleACPIButtons          1.4
com.apple.driver.AppleRTC          1.4
com.apple.driver.AppleHPET          1.6
com.apple.driver.AppleSMBIOS          1.7
com.apple.driver.AppleACPIEC          1.4
com.apple.driver.AppleAPIC          1.5
com.apple.driver.AppleIntelCPUPowerManagementClient          167.1.0
com.apple.security.quarantine          1
com.apple.nke.applicationfirewall          3.2.30
com.apple.driver.AppleIntelCPUPowerManagement          167.1.0
com.apple.kext.triggers          1.0
com.apple.driver.AppleAVBAudio          1.0.0d11
com.apple.iokit.IOSurface          80.0
com.apple.iokit.IOBluetoothSerialManager          4.0.1f4
com.apple.iokit.IOSerialFamily          10.0.5
com.apple.iokit.IOAVBFamily          1.0.0d22
com.apple.driver.AppleHDAHardwareConfigDriver          2.1.3f7
com.apple.driver.DspFuncLib          2.1.3f7
com.apple.iokit.IOAudioFamily          1.8.3fc11
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.driver.IOBluetoothHIDDriver          4.0.1f4
com.apple.driver.AppleMultitouchDriver          220.62.1
com.apple.iokit.IOFireWireIP          2.2.4
com.apple.driver.AppleHDAController          2.1.3f7
com.apple.iokit.IOHDAFamily          2.1.3f7
com.apple.driver.ApplePolicyControl          3.0.16
com.apple.driver.AppleGraphicsControl          3.0.16
com.apple.iokit.IO80211Family          411.1
com.apple.driver.AppleSMC          3.1.1d8
com.apple.driver.IOPlatformPluginFamily          4.7.5d4
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleBacklightExpert          1.0.3
com.apple.iokit.IONDRVSupport          2.3.2
com.apple.driver.AppleThunderboltEDMSink          1.1.3
com.apple.driver.AppleThunderboltEDMSource          1.1.3
com.apple.kext.ATI6000Controller          7.1.4
com.apple.kext.ATISupport          7.1.4
com.apple.driver.AppleIntelSNBGraphicsFB          7.1.4
com.apple.iokit.IOGraphicsFamily          2.3.2
com.apple.driver.AppleThunderboltDPOutAdapter          1.5.8
com.apple.driver.AppleThunderboltDPInAdapter          1.5.8
com.apple.driver.AppleThunderboltDPAdapterFamily          1.5.8
com.apple.driver.AppleThunderboltPCIDownAdapter          1.2.1
com.apple.driver.BroadcomUSBBluetoothHCIController          4.0.1f4
com.apple.driver.AppleUSBBluetoothHCIController          4.0.1f4
com.apple.iokit.IOBluetoothFamily          4.0.1f4
com.apple.iokit.IOUSBHIDDriver          4.4.5
com.apple.iokit.IOUSBMassStorageClass          3.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice          3.0.1
com.apple.driver.AppleFileSystemDriver          13
com.apple.driver.AppleUSBMergeNub          4.5.3
com.apple.driver.AppleUSBComposite          3.9.0
com.apple.driver.XsanFilter          403
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.0.1
com.apple.iokit.IOBDStorageFamily          1.6
com.apple.iokit.IODVDStorageFamily          1.7
com.apple.iokit.IOCDStorageFamily          1.7
com.apple.driver.AppleThunderboltNHI          1.3.2
com.apple.iokit.IOThunderboltFamily          1.7.4
com.apple.iokit.IOAHCISerialATAPI          2.0.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.0.1
com.apple.iokit.IOUSBUserClient          4.5.3
com.apple.iokit.IOEthernetAVBController          1.0.0d5
com.apple.iokit.IONetworkingFamily          2.0
com.apple.iokit.IOFireWireFamily          4.4.5
com.apple.iokit.IOAHCIFamily          2.0.7
com.apple.iokit.IOUSBFamily          4.5.5
com.apple.driver.AppleEFIRuntime          1.5.0
com.apple.iokit.IOHIDFamily          1.7.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.TMSafetyNet          7
com.apple.security.sandbox          165.3
com.apple.kext.AppleMatch          1.0.0d1
com.apple.driver.DiskImages          331
com.apple.iokit.IOStorageFamily          1.7
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.4
com.apple.iokit.IOPCIFamily          2.6.7
com.apple.iokit.IOACPIFamily          1.4
Model: iMac12,2, BootROM IM121.0047.B1D, 4 processors, Intel Core i7, 3.4 GHz, 16 GB, SMC 1.72f2
Graphics: AMD Radeon HD 6970M, AMD Radeon HD 6970M, PCIe, 2048 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020
Memory Module: BANK 0/DIMM1, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020
Memory Module: BANK 1/DIMM1, 4 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333531533642465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x9A), Atheros 9380: 4.0.58.4-P2P
Bluetooth: Version 4.0.1f4, 2 service, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en1
Serial ATA Device: ST32000541AS, 2 TB
Serial ATA Device: APPLE SSD TS256C, 251 GB
Serial ATA Device: OPTIARC DVD RW AD-5690H
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfd100000 / 2
USB Device: Internal Memory Card Reader, apple_vendor_id, 0x8403, 0xfd110000 / 4
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0xfd120000 / 3
USB Device: FaceTime HD Camera (Built-in), apple_vendor_id, 0x850b, 0xfa200000 / 3
USB Device: hub_device, 0x0424 (SMSC), 0x2514, 0xfa100000 / 2
USB Device: EyeTV Hybrid, 0x0fd9, 0x0018, 0xfa120000 / 5
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0xfa110000 / 4
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0xfa111000 / 6
*****END*****
please help me! any help will do! ANY!! ( if you are going to comment about restoring then please is there a way to stop it from deleting everything? because i have lots of important stuff on my imac)
Thanks for any help in advance.

Ok,
Firstly, I reccomend starting your machine in Safe Boot, and seeing if it occurs again. You can do this by holding the shift key immediately as the machine starts up. If you notice that it never occurs in this mode, it is likely a temporary issue. You may like to backup, and then run a clean install of your OS. If the issue still occurs then follow the steps below.
Repair disk permissions. Open disk utility app, select Macintosh HD, and then repair permissions. Then go ahead and follow the following steps.
Check peripheral devices first
Skip this section if you have no peripheral devices.
Power off your Mac.
Disconnect all peripheral devices and Ethernet cables until all you have connected to your Mac is a display, keyboard, and mouse or trackpad.
Power on your Mac and start from the external hard disk.
Use the Apple applications on your external hard disk to surf the web, view QuickTime movies, email, print, scan, sync iOS devices, and other things. Continue using your Mac for the amount of time it would usually take for the kernel panic to occur.
If the kernel panic does not occur: Power down your Mac and connect one peripheral at a time; repeat the above steps until you find the peripheral causing your kernel panic.
If the kernel panic does occur: Proceed to check the internal RAM and third party hardware.
Check internal RAM and third-party hardware
Power off your Mac.
Reseat your Apple RAM, and remove third party RAM and third-party hardware. If you do not have the Apple RAM that came with your system, reseat the third-party RAM.
Power on your Mac and start from the external hard disk.
Use the Apple applications on your external hard disk to surf the web, view QuickTime movies, email, print, scan, sync iOS devices, and other things. Continue using your Mac for the amount of time it would usually take for the kernel panic to occur.
If the kernel panic does not occur: Your third-party RAM or internal third-party hardware may need to be replaced.
If a kernel panic does occur: Bring your Mac to a Genius at an Apple Store, or an Apple Authorized Service Provider for service and support. Be sure to ask that, if the hard disk needs reformatting or replacing, they contact you about escalating your case to a special data recovery service. If you plan to visit an Apple Retail store, make a reservation at the Genius Bar using http://www.apple.com/retail/geniusbar/ (available in some countries only).
Software troubleshooting
Reinstall Mac OS X v10.6 (or, for Mac OS X v10.5, perform an archive and install) on your internal hard disk.
Start from the internal hard disk.
Run Software Update.
Install all updates until Software Update reports "Your software is up to date."
Download and install any third-party software updates before reinstalling third-party software, especially drivers and kernel extensions.
Examples include:
Virtualization software – Parallels, VirtualBox and VMware
Drivers for display cards – ATI and nVIDIA
See if this helps, and get back to me,
Nathan

Satellite L450D - blank screen at start-up

Hi
my laptop shows a blank screen totally black on start up the hard drive light is not flashing but I can hear the fan.
Suggestions welcomed

Sounds like a serious hardware problem.
You can check if the issue is related to the display or graphic chip.
Connect external monitor and check if something would be visible on the 2nd monitor.
In case nothing would be visible on the external monitor, your graphic chip (maybe motherboard) is affected

Imac blank screen. back light on. imac shows on TV. bad LCD?

hello, I have imac 21.5 late 09 modle A1311. this piece of garbage was working til one day started up with blank screen. we did nothing to it no changing of any parts.nothing connected to this imac. I called apple and as always they were no help at all. I took it to iphone911 they said it could be LCD or LCD connector. I don't think they know what they are doing much like Apple. I hooked up the imac to the TV with HDMI and everything showed up and was able to use it with the TV full accsess. this imac powers up and the back light (dark blue) comes on ummm not the blue u see when mac starts bthis is backlight!! after started but no video at all. could the LCD be bad even tho backlight comes on? what could it be if it's not the LCD? I'm going to buy LCD if it's but I wan't to make sure this is the fix. I put it on CL but very low offers so I want to sell it and get windows and NEVER EVER again buy anything apple makes total garbage I'm so mad spending $1500+ with no support, now thinking I could bought 3 nice laptops with winds but live and learn.

oh thank god I sold this piece of crap called imac and bought new HP win 8. nothing ever will enter my house that apple makes this is for sure.and nothing good comes out of an idiot who makes a computer in the garage after fail in fixing cars!!

How to avoid blank screen when starting?

When starting my mac book air, it only shows a blank screen, any suggestions to get back to normal?

Hi Daniel,
By blank do you mean that the screen is black? Is it gray? Is it blue? The word "blank" is vague when trying to determine and isolate startup issues.

My Imac desktop screen suddenly started to change colors and pattern appeared

My Imac desktop screen started to "flip out", things were moving around and strange patterns filled everything on the screen. After a minute it stopped. Is this a warning sign of a hard drive meltdown?

Contact Apple Service, iMac Service or Apple's Express Lane. Do note that if you have AppleCare's protection plan and you're within 50 miles (80 KM) of an Apple repair station, you're eligible for onsite repair since yours is a desktop machine.
BTW, 10.6.1?

Hp Omni 100 5050 blank screen on start up

2 days ago I put my PC in sleep mode and when I went to get back on it was unresponsive with mouse and keyboard. The light near the power button was on, but I powered down and powered back up and PC powers up, but now the light near power button is not working and neither my keyboard or mouse. The light is on where power cord is plugged in back of PC and where you can insert a CD/DVD light working. I have tried the Bios resetting from the forums troubleshooting no go. Power cord good and tested keyboard on another device and that is working. Not sure what else I can do? Any suggestions on possible fixes would be great! Thank you

Hello @Kerngren,
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 after failing to recovery from sleep mode your computer will not no longer startup complete and instead loads to a blank screen. I am providing you with an HP Support document: Screen is Blank after Starting the Computer, which I recommend you review and follow the steps set out within. I suspect that you are facing a hardware issue and if the steps within the document do not resolve your issue please ensure you contact 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 would like to thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
Dunidar
I work on behalf of HP
Find out a bit more about me by checking out my profile!
"Customers don’t expect you to be perfect. They do expect you to fix things when they go wrong." ~ Donald Porter

Blank screen on start up on MacBookair

i get a blank screen when pressing the power button to start my MacBook Air - what is going on? What can I do?

Try these steps:
https://support.apple.com/en-us/HT204325
Ciao.

IMac blank screen shortly after login - can't reinstall/restore either

Since yesterday my iMac crashes with a blank screen (different colors, mostly blue) shortly after login. Booting in safe mode is fine though. Hardware test did not find any problems, also Windows Vista 32bit runs fine. I would restore a recent backup, but when I boot from the installation disk the screen turns white and freezes. I tried a PRAM reset and I took the power chord and everything off for several minutes. Still the same issues.
Console showed kernel panics. Please check the dump below.
Any suggestions on how to restore my iMac?
Thanks,
qgi
Thu Sep 10 23:07:15 2009
panic(cpu 0 caller 0x00C866A4): NVRM[0]: Read Error 0x00020400: BAR0 0xe2000000 0x6a08c000 0x092480a2 D0 P2/4
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x5b41f868 : 0x12b4c6 (0x45f91c 0x5b41f89c 0x13355c 0x0)
0x5b41f8b8 : 0xc866a4 (0xeb6e80 0xeb6e80 0xe7b6d4 0x0)
0x5b41f918 : 0xf3fdf0 (0x7868004 0x7ddd804 0x20400 0xcc2d06)
0x5b41f958 : 0xf6386f (0x7ddd804 0x20400 0x5b41f988 0x898)
0x5b41f978 : 0xd596da (0x7ddd804 0x46ebc098 0x0 0x5b41f99c)
0x5b41f9a8 : 0xd47c99 (0x7ddd804 0x46ebc004 0x1 0x5b41f9ec)
0x5b41fa08 : 0xde91f3 (0x7ddd804 0x7a1c604 0xa9af880 0x0)
0x5b41fab8 : 0xde881b (0x7ddd804 0x7e29004 0x0 0x0)
0x5b41fb38 : 0xf28bc1 (0x7ddd804 0x7e29004 0x1a 0x2)
0x5b41fbb8 : 0xf29254 (0x7ddd804 0x7e29c04 0x400000 0x5b41fcdc)
0x5b41fd38 : 0xf5a3ed (0x7ddd804 0x7e29c04 0x0 0x0)
0x5b41fe88 : 0xddc495 (0x7ddd804 0x7a1c604 0x0 0x0)
0x5b41fed8 : 0xc86b60 (0x7ddd804 0x7a1c604 0x0 0x0)
0x5b41ff18 : 0x426bfb (0x0 0x7ec4c80 0x1 0x19fed4)
0x5b41ff68 : 0x425d58 (0x7ec4c80 0x71066b0 0x5b41ff98 0x136efd)
0x5b41ff98 : 0x425a3a (0x7545840 0x7124ec0 0x72f04a8 0x0)
Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.apple.nvidia.nv50hal(5.4.8)@0xecc000->0x111ffff
dependency: com.apple.NVDAResman(5.4.8)@0xc6d000
com.apple.NVDAResman(5.4.8)@0xc6d000->0xecbfff
dependency: com.apple.iokit.IONDRVSupport(1.7.3)@0xc5f000
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x629000
dependency: com.apple.iokit.IOGraphicsFamily(1.7.3)@0xc25000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9L31a
Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:55:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_I386
System model name: iMac8,1 (Mac-F227BEC8)
System uptime in nanoseconds: 166442601961
unloaded kexts:
com.apple.driver.InternalModemSupport 2.4.0 - last unloaded 118040925185
loaded kexts:
com.vmware.kext.vmnet 2.0.5
com.vmware.kext.vmioplug 2.0.5
com.vmware.kext.vmci 2.0.5
com.vmware.kext.vmx86 2.0.5
com.apple.filesystems.msdosfs 1.5.5 - last loaded 149337141464
com.apple.driver.iTunesPhoneDriver 1.0
com.apple.driver.AppleHWSensor 1.9d0
com.apple.driver.IOBluetoothSCOAudioDriver 2.1.8f2
com.apple.filesystems.autofs 2.0.2
com.apple.filesystems.ntfs 2.1
com.apple.driver.AppleUpstreamUserClient 2.7.5
com.apple.iokit.IOBluetoothSerialManager 2.1.8f2
com.apple.driver.AppleHDA 1.7.1a2
com.apple.DontSteal_Mac_OSX 6.0.3
com.apple.iokit.CHUDUtils 201
com.apple.iokit.CHUDProf 211
com.apple.driver.AppleIRController 113
com.apple.GeForce 5.4.8
com.apple.driver.ACPISMCPlatformPlugin 3.4.0a17
com.apple.driver.AppleHDAController 1.7.1a2
com.apple.iokit.IOFireWireIP 1.7.7
com.apple.driver.AudioIPCDriver 1.0.6
com.apple.driver.AppleUSBAudio 2.6.4b17
com.apple.driver.AppleLPC 1.3.1
com.apple.driver.AppleBacklight 1.6.0
com.apple.nvidia.nv50hal 5.4.8
com.apple.driver.BroadcomUSBBluetoothHCIController 2.1.8f2
com.apple.driver.AppleHIDKeyboard 1.0.9b4
com.apple.iokit.IOUSBMassStorageClass 2.0.8
com.apple.driver.AppleUSBMergeNub 3.4.6
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.1.1
com.apple.iokit.SCSITaskUserClient 2.1.1
com.apple.driver.XsanFilter 2.7.91
com.apple.iokit.IOATAPIProtocolTransport 1.5.3
com.apple.driver.AppleUSBHub 3.4.9
com.apple.iokit.IOUSBUserClient 3.4.9
com.apple.iokit.IOAHCIBlockStorage 1.2.2
com.apple.iokit.AppleYukon2 3.1.13b2
com.apple.driver.AirPortBrcm43xx 366.91.21
com.apple.driver.AppleFWOHCI 3.9.7
com.apple.driver.AppleAHCIPort 1.7.0
com.apple.driver.AppleIntelPIIXATA 2.0.1
com.apple.driver.AppleUSBEHCI 3.4.6
com.apple.driver.AppleUSBUHCI 3.3.5
com.apple.driver.AppleEFINVRAM 1.2.0
com.apple.driver.AppleRTC 1.2.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleACPIPCI 1.2.5
com.apple.driver.AppleACPIButtons 1.2.5
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.2.5
com.apple.driver.AppleAPIC 1.4
com.apple.security.seatbelt 107.12
com.apple.nke.applicationfirewall 1.6.77
com.apple.security.TMSafetyNet 3
com.apple.driver.AppleIntelCPUPowerManagement 76.2.0
com.apple.driver.DiskImages 199
com.apple.BootCache 30.4
com.apple.iokit.IOSerialFamily 9.4
com.apple.driver.DspFuncLib 1.7.1a2
com.apple.iokit.CHUDKernLib 201
com.apple.driver.IOPlatformPluginFamily 3.4.0a17
com.apple.driver.AppleSMC 2.3.1d1
com.apple.iokit.IOHDAFamily 1.7.1a2
com.apple.iokit.IOAudioFamily 1.6.9fc5
com.apple.kext.OSvKernDSPLib 1.1
com.apple.NVDAResman 5.4.8
com.apple.iokit.IONDRVSupport 1.7.3
com.apple.iokit.IOGraphicsFamily 1.7.3
com.apple.driver.AppleUSBBluetoothHCIController 2.1.8f2
com.apple.iokit.IOBluetoothFamily 2.1.8f2
com.apple.iokit.IOUSBHIDDriver 3.4.6
com.apple.driver.AppleUSBComposite 3.2.0
com.apple.iokit.IOSCSIBlockCommandsDevice 2.1.1
com.apple.iokit.IOBDStorageFamily 1.5
com.apple.iokit.IODVDStorageFamily 1.5
com.apple.iokit.IOCDStorageFamily 1.5
com.apple.iokit.IOSCSIArchitectureModelFamily 2.1.1
com.apple.iokit.IO80211Family 216.1
com.apple.iokit.IONetworkingFamily 1.6.1
com.apple.iokit.IOFireWireFamily 3.4.9
com.apple.iokit.IOAHCIFamily 1.5.0
com.apple.iokit.IOATAFamily 2.0.1
com.apple.iokit.IOUSBFamily 3.4.9
com.apple.driver.AppleEFIRuntime 1.2.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.iokit.IOStorageFamily 1.5.6
com.apple.iokit.IOHIDFamily 1.5.5
com.apple.driver.AppleACPIPlatform 1.2.5
com.apple.iokit.IOACPIFamily 1.2.0
com.apple.iokit.IOPCIFamily 2.6
Message was edited by: qgi
Message was edited by: qgi

HI,
Go here for help to Resolve Kernel Panics
Carolyn

Imovie 09 - blank screen on start up

Brand new issue. Never had a problem with imovie before.
Recently updated to newest version 8.0.3 (802).
Now whenever I open imovie I get a blank screen. Tool bar is present at the top but I cannot see any of the work areas until I click new project. Then it seem to appear from the top right corner. Only to disappear again to the top right. I thought it had something to do with expose or having a firewire drive plugged in. Anyone have a similar problem? HELP? any advice will be appreciated!

Its almost as though the program is fully active. But it's sucked out of view.
I'm able to see the work area if I hit the "show all windows" or F3 on my apple keyboard. But as soon as I click the window it gets yanked into the top right of the screen, gone from my view.
I was able to get half the work area to stay in view long enough to export my events to an external HD I'm anticipating not being able to use the program.
This is sooo frustrating because I've used imovie since forever and NEVER had a problem like this. I've run anti-virus, checked screen-size settings, un-installed and re-installed imovie, then updated still nothing.

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i have a mini mac which i bought in march 2012. when i attached two screens , especially the HD connected one i get blank screens, but when i detached the HD input screens the other screen returns. is there a solution out there??

Hi, how are the screens connected?
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