Macbook display turns off when booting Snow Leopard DVD

I have mid-2009 Macbook Pro and I hate Mountain Lion. I want to do a clean install of Leopard using the DVD (grey) that came with my computer. I loaned it to a friend recently and he had no issues. But everytime i try to boot from the SL DVD (hold C at startup) it behaves normally, until about the time it would go into the DVD startup screen. At that point the display turns off (not the whole computer, just the display) as if it has gone to sleep. And I can't get it to turn on again. I've also tried booting and holding Option and choosing the DVD as the boot drive. No dice.
Awhile back I created a Lion install DVD. I can boot to it just fine. But i don't want Lion either. Any ideas why this is happening? Thanks!

Press control shift eject, then any key to toggle the display from sleep/wake.

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Display turns off when booting from CD

I have a 15-inch Powerbook. I need to reload the OS because my son changed the password and I need to reset it. But when I press "c" at the startup, the screen goes black. It does the same thing when I try to load open firmware at startup. Any ideas of how to fix this issue would be greatly appreciated.

Thank you soooo much! Pressing the command button launched the startup manager, where I was able to choose to start from CD manually. I didn't know about startup manager. Thanks again.

My MACBOOK Pro turned out to be Snow Leopard, and later upgraded to LION. And update the EFI, I would like to replace the Snow Leopard, EFI can not boot, how do? How to use the Snow Leopard install disk to reduce EFI?

My MACBOOK Pro turned out to be Snow Leopard, and later upgraded toLION. And update the EFI, I would like to replace the Snow Leopard, EFIcan not boot, how do? How to use the Snow Leopard install disk to reduce EFI?

Do you mean some of your software does not work in Lion? Do you want to return to using Snow Leopard? If so, then do this:
Downgrade Lion to Snow Leopard
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install Snow Leopard.
This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard (see below.) I suggest you make a separate backup using Carbon Copy Cloner 3.4.1.
If you have Snow Leopard Time Machine backups, do a full system restore per #14 in Time Machine - Frequently Asked Questions. If you have subsequent backups from Lion, you can restore newer items selectively, via the "Star Wars" display, per #15 there, but be careful; some Snow Leopard apps may not work with the Lion files.

Macbook pro turns off when i unpliug

macbook pro turns off when i unpliug

You either need to plug in your charger and if that isn't working if your machine is less than a year old take it in to your nearst Apple Store and let them deal with it. Or if you are out of warrantee you will need to get a new battery for your Mac
Cheers
Don

Display turns off when i am talking

Display turns off when i am talking (emidiatly) - when conversation is terminated display is working back again - if i plugin headphones evrything work fine
I restored the device twice nothing helps.

The display is supposed to turn off when you hold the phone to your ear (so your ear doesn't touch any controls). If it happens when you are not holding it to your ear this usually means that your case is covering the sensor that turns it off when you hold it to your ear.

Backlight shuts off when booted on Leopard Install DVD

Booting my macbook pro on the optical drive (by holding the "C" key at power up),with the Leopard install DVD causes the backlight on the display to shut off. Reboot with the OS on the hard disk (OS 10.4) and the display works fine. Playing with the screen brightness keys has no effect on the backlight when booted on the DVD. I also did a pmu reset (remove battery and hold the power button for 5 seconds) The display functions normally during regular use, It only happened when booted on the leopard install DVD. I was able to complete the install with a 2nd display connected to the dvi port and the display now works properly when booted under 10.5. Just wondering if anyone has seen this behavior or has an idea of the cause.

I have the same issue. Can some one please help? Thanks

Why won´t my display turn off when i call (iphone 4s ios 5.1)??

hi
i have a iphone 4s with ios 5.1
since i updated to 5.1 i have the problem that the display won´t turn off,
when i call with someone.
i have reset the iphone more than one time.
I don´t know what i can do more.
ps: sorry for my englisch

ach nee....
i have no protection on the iphone and i know the display turns only off when i hold it at my ear.
my problem IS that the display won´t turn off when i hold it at my ear.
This problem is since the update to 5.1!

MacBook Pro turns off when mega-safe adapter is removed

Hello,
I just installed a new battery, however, battey health condition seems normal but my macbook pro turns off whenever i remove the mega-safe adapter. I also noticed that even though the battery says 100% charged, the fully-charged green indicator does not come on. Below is the system information.
HELP!!!
Battery Information:
Model Information:
Serial Number:    W0*****3LC
Manufacturer:    SMP
Device Name:    bq20z451
Pack Lot Code:    0
PCB Lot Code:    0
Firmware Version:    201
Hardware Revision:    000a
Cell Revision:    165
Charge Information:
Charge Remaining (mAh):    5568
Fully Charged:    Yes
Charging:    No
Full Charge Capacity (mAh):    5568
Health Information:
Cycle Count:    3
Condition:    Normal
Battery Installed:    Yes
Amperage (mA):    8
Voltage (mV):    12580
System Power Settings:
AC Power:
System Sleep Timer (Minutes):    10
Disk Sleep Timer (Minutes):    10
Display Sleep Timer (Minutes):    10
Wake on AC Change:    No
Wake on Clamshell Open:    Yes
Wake on LAN:    Yes
AutoPowerOff Delay:    14400
AutoPowerOff Enabled:    1
Current Power Source:    Yes
Display Sleep Uses Dim:    Yes
PrioritizeNetworkReachabilityOverSleep:    0
Standby Delay:    4200
Standby Enabled:    0
Battery Power:
System Sleep Timer (Minutes):    15
Disk Sleep Timer (Minutes):    10
Display Sleep Timer (Minutes):    15
Wake on AC Change:    No
Wake on Clamshell Open:    Yes
AutoPowerOff Delay:    14400
AutoPowerOff Enabled:    1
Display Sleep Uses Dim:    Yes
Reduce Brightness:    Yes
Standby Delay:    4200
Standby Enabled:    0
Hardware Configuration:
UPS Installed:    No
AC Charger Information:
Connected:    Yes
ID:    0x0100
Wattage (W):    60
Revision:    0x0000
Family:    0x00ba
Serial Number:    0x00eee1de
Charging:    No
<Edited by Host>

olacurrency wrote:
error code: 4SNS/40000000: IPBR-9.165
This is a current sensor on the power bus. This seems consistent with your symptoms.
A faulty sensor on the logic board means the board has to be replaced, take in for repair:
Genius reservation http://www.apple.com/retail/geniusbar/
on-line https://getsupport.apple.com/GetproductgroupList.action
check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do

How Come the iMac Can't Boot Snow Leopard DVDs Anymore Under Lion and ML?

Hi. I'm using ML as my main OS but I noticed when after installing Mountain Lion it doesn't recognize and just ejects the Snow Leopard DVD installers that came with my Mac (you could boot to it when the iMac had Snow Leopard). It doesn't see it as bootable anymore (it doesn't appear as bootable when you boot then press option nor does Startup in System Preferences see it as bootable. The DVD's are in good condition coz' it's not used that often):
Windows 7 Ultimate & Windows 8 Release Preview installer on a DVD-RW which is sees as blank (but it works find on a PC).
Only Snow Leopard that's in a USB (not sure how they made that but it was made for me by Apple repair center). I did back the SL DVDs years ago as .cdr (Master). I'm not sure if the .cdr images of the original SL DVDs can be burned into dual layer DVDs and work like the original (how do you go about that? Do you just burn .cdr like you would with .iso or .dmg?)
I think the hidden recovery partition starting with Lion is actually preventing DVDs from SL to lower versions from being recognized as bootable. Same with bootable Windows DVD-RW as Apple and the rest of the industry (I noticed netbooks now have recovery partitions too) switch to hidden partition and USB installers instead of medias like DVDs and CDs. I would guess if you could install Snow Leopard using an SL USB installer and complete erase the main hardisk along with the hidden recovery partition, install Snow Leopard it'll recognize Windows burned in DVD-RW again.
I can't install Bootcamp coz' it sees Windows 7 & 8 installers as blank drives, even Windows USB installers are not bootable (both USB and DVD-RW installers work fine on the PC). I'm thinking of disabling the iMac's Superdrive by moving in a folder or renaming its driver/extension IOSDVDStorageFamily.kext maybe tomorrow so hopefully when BootCamp sees that the iMac doesn't have an optical drive it'll show the Create USB Installer option (now it only show 2 options) so that it'll create the installers into the Flash drive.
I'm anxious of booting the USB Snow Leopard Installer and erasing the drive completely along with ML's recovery partition then installing SL in the hardisk because my Time Machine backup could get messed up. It might not restore the ones backedup by Lion and ML, although I could manually copy paste the documents but that'll defeat the main purpose of having a Time Machine backup.
Has anyone experienced this too with their Snow Leopard DVDs and Windows USB installers? Any solutions?
Thank you in advance.
God bless.

Zap the PRAM and Reset the SMC, then try again.

Not able to run installer when booting (Snow)Leopard on MacBook Pro Unibody

Hi all.
I would very much appreciate any help with this issue...
I have recently installed an app called monolingual(stay away from it - don't touch it with a stick) - I thought I'd get a couple of GBs off my HDD by deleting the surplus languages... Unfortunately this resulted in other apps behaving strangely and rendered them unusable. I thought this would subside, if I'd reboot the machine. Unfortunately what I found, when i did so, was a blank default MacOs wallpaper(the one with the universe) and nothing else - not even a login prompt... Long story short - I have tried many things in single user mode - booting in verbose mode, to see what's up(nothing out of the ordinary) - booting in safe mode(didn't change a thing), and of course trying to restore my HDD from Time Machine - God bless time machine... Unfortunately in order to do that - I need the MacOs installer(which can't be reached) - I have tried to boot from DVD, while holding the C key, the option key - then choosing the DVD as the bootable device of choice, I've tried to install it remotely from my brother's macbook via ethernet - nothing worked. Also I have attempted the PRAM NVRAM reset as well as the SMC... I have tried all these things with both OsX Leopard and Snow Leopard... Nothing at all worked. To make matters worse, I am worried about my hard disk, as the only way I can shut my machine down is by holding down the power button, until it turns off(keyboard shortcuts don't work, and there are no menus or anything available) - that can't be good for HDD. As far as booting from my superdrive goes - the DVD seems to be booting{I can hear it working and see the progress (the dots and the drivers loading) in verbose mode}, however at some point it just reboots the laptop with no warning or message, and the whole ordeal repeats. I am desperate and running our of options... could someone please, please, please help? Any clue or tip would be greatly appreciated and will most likely spare me a nervous breakdown.
Am I completely screwed, or just a little? Can this be fixed? For the record, I have no Apple Care, and my 1-year warranty had expired in November. Any suggestions?
Thanks up-front to any kind soul with an answer or just kind words.
Sincerely,
Piotr.

Re-partitioning a drive without losing data is a very difficult task. The data on the TM drive are, at this point, irreplaceable.
It has been safe and a very common practice on a Mac to be able to add, remove and resize partitions for years. Apple supports it well with Disk Utility, and even for Bootcamp.
Time Machine is just a file/folder on a partition, even if it's only on one partition. The Time Machine drive itself is not special in any way other than it has been set up to work on a Mac with the proper partition scheme and format.
I was just suggesting a way to use the OP's mentioned hardware to perform some sort of test that would prove something, in order to know which step to recommend next. If Disk Utility says it can not create a new partition at the end of a drive, then there are fragments of data in the area and Disk Utility will refuse to resize the first partition to be slightly smaller. The OP can also go buy another drive for the experiment, and also use his brother's drive like *R C-R* mentioned. He can even buy a large USB thumb drive but I don't think he needs to buy anything for a 'test'.
It is also very common for users to create new separate partitions on an existing TM drive for other machines to use. In fact, this is the preferred storage method when sharing TM with different machines because a partition can be easily removed without disturbing adjacent TM backups, it provides for a way to control the size of each machine's TM backup, and because it's much faster to replace a partition instead of trying to delete a TM backup with Finder. These are accepted practices we've learned the hard way.
Going the other way, I routinely set up external 1TB drives for two partitions. The first 750GB partition is for TM, and the second is for a SuperDuper bootable clone. As requirements or user preference for TM or SuperDuper may increase due to larger boot drives or for whatever reason, the second partition can easily be deleted, and the first partition can be safely enlarged, with no data loss.
Now in the case of a drive that is over 85% full or was ever that full, there is a high probability that the second partition can not be created due to files getting copied to the end of the drive. Disk Utility will refuse to change a drive like this.

External display turns off when macbook isn't charging...

I have my old 2007 white Macbook hooked up to an external display. Recently I have been wanting to calibrate the battery while using it on the external display, but every time I remove the charger from the Macbook the external display will stay on for a couple of seconds then turn off, it will only come back on when I click the mouse or press something on the keyboard, but then it will go back to sleep. Note: when my Macbook is connected to the external display I keep the screen closed.

When you are looking at the displays in the System Prefs, all you have to do is click and drag the tiny rectangular bar from the main screen to the external monitor screen (this designates the primary monitor).
Once you've done that, all you have to do is close the lid. Your screen will flash a couple times, but the external monitor will then remain on and working, and you dont need to keep your lid open.
FYI, I would turn down the brightness of your MBP down all the way (for both the screen and keyboard). I have found that this reduces any heat build up that it may have from running with a closed lid.
Hope this helps!
Ben

MBP display turns off when external monitor is attached

Hi there,
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Okay, so a little update. I have determined that the problem is the nvidia driver. When I roll back the driver to the "Microsoft Basic Display Adaptor" driver and connect the monitor then it behaves as excpected. The external monitor isn't detected and everything continues to work properly.
So is there anyone out there who is running a Mid 2012 15" MacBook Pro with an external monitor in either Windows 7 or 8.1? If so please let me know what your setup is and what driver version you are using. This is driving me crazy. Thanks.

MacBook Pro turns off during boot?

This is kind of a long story.
I have a 13-inch, Mid-2010 MacBook Pro running OS X Mavericks. I was using it near a bathtub, when a moderate amount of water spilled onto the keyboard. I immediately dabbed out most of it, and put it upside down for some time. It was running then, with all the keys and trackpad working fine. t turned it off, and tired turning it on after half an hour. Nothing. I decided to keep it switched off for 7 days, during which I would open the lid every now and then to find vapor on the screen from the keyboard which I would wipe and close again. I turned it on when there was no vapor spotted for 3 days. I plugged it in after 7 days, to see that the battery status indicator was erratic. It turned on with a sound from the SuperDrive (the usual click). There was no startup chime. A few minutes later, it turned off. I decided to reset the PRAM and SMC, and I realized that I can get to my account window successfully (and type a 22 letter password) as long as I keep any key pressed throughout bootup (option, command key, etc). I have tried many times, but it just turns off with a "nik" sound. I haven't backed up, and I have about 270 GB of important data stored that I CANNOT lose.
If it helps, it's 250GB drive crashed in December but it was replaced with a 500 GB and has been running smooth until this.
Please help me! Any advice at all is extremely appreciated. Thank you!

Ishaan.3108 wrote:
I haven't backed up, and I have about 270 GB of important data stored that I CANNOT lose.
Take the HDD out of the MBP and install it in an enclosure. Connect it to another Mac and see if you have access to the HDD. If so, copy what ever files that are important to you to another HDD.
Then you can take the MBP to an Apple store genius bar for a FREE evaluation. Prepare your self for unfavorable news.
Ciao.

My MacBook Air turns off while booting

Last night I installed a heavy software on my Mac but still had 11GB free on hard drive. However while working it just crashed and stopped working. Then I turned it off and on again, but everytime it in booting when the Apple logo appears it was keep loading, even for 20 mins. So I treid to load recovery and tried all opriones. But each one does not work for different reasons.
First one is recovery from back up, as I dont have any backup so I cant use it.
Installing new OS also does not work as I does not let me to choose a drive. Keep saying Macintosh HD is locked.
Also for Disk Uitility, when I choose the Macintosh HD, it gives error while verifying the Disk and also ends up with error when repairing.
And now whenever i turn it on, it just turns of when the apple logo appears.
I have not tried safe mode yet, as I dont know how to do it.
Any idea? :/
Is there anyway to copy my files before I format the drive or any way?

The MBA bought new? Then you have warrantee.
You should be able to start while holding the Alt(option) key for the Boot menu: HDD, RecoveryDisk.
And start while holding the Shift key for the Safe mode.
Do the SMC reset:
http://support.apple.com/kb/HT3964?viewlocale=en_US&locale=en_US
Do it twice or even three times.
When you can then boot into the safe mode, do that, then shutdown and do the PRAM reset:
http://support.apple.com/kb/HT1379
When the system then still misbehaves, go the Apple, make an appointment and have them look at it.

Macbook pro turns off when i charge it

My Macbook pro (2013 500mb 13') works fine but occasionally it will just turn off randomly when I'm using it. I have noticed recently that it happens particularly when I plug it in to charge. I am fully able to turn it straight back on after it turns off and it works normally again. It probably happens twice a day, I have it updated to the most recent updates and I have tried resetting the SMC and PRAM but nothing seems to work.

Resetting SMC may help.
Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
Check Battery Condition.
Click  in the menu bar.
About This Mac > More Info.. > System Report > Hardware > Power > Battery Information

Macbook display turns off when booting Snow Leopard DVD

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