Screen black, backlight on, external on

Hi,
So I've been reading a similar forum only mine is slightly different. I have it hooked up to a 19" external display, and that works fine. The problem is when I disconnect from the display and use it as a laptop. Everything would be fine for some time (varies, between 5-20 minutes. Let's just say a random interval) and then all of the sudden the screen would go black. Backlight is still on though, and you can control the backlight. Caps lock and num lock keys light too. Processes going on. Just a dead screen. It comes back to life once in a while. But once in a while ain't gonna cut it for a $2000 computer, as we all know.
I have a university computer store I could take this too so I guess I'll have them look at any hardware issues. Meanwhile, could I do anything in terms of software fixes?
Toppo

Oh and one more thing I just found out: when I open the lid when it' on an external display, the screen is again black with only the backlight on. But then when I go to the display menus and click "detect display" the display on the macbook pro comes back to life for a little bit (again, varying for up to 5 minutes or so)
does this give a clue to anything? I realized that the display issue has been an ongoing thing for macbook pros ever since the update to 10.5.1.

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Broken (black) Macbook Pro screen, Want to use external monitor.

Long story short I have a Macbook Pro older version like 2007-08. The screen is broken and I cannot seem to get it to hook up to an external monitor. I've tried booting it up and holding cmd + F1, Nothing. I've tried booting it up and shutting the screen and using an external mouse to try and wake up the external monitor, nothing.
Heres 3 things that I can imagine are going wrong.
1) My external mouse is garbage and doesn't work.
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3) I use to run Windows 7 on the computer as well. So whenever I booted my computer on i would have to hold the option key or it would go directly to windows. When I held the option key it would show 2 hard drives the mac and the windows, then I would have to click the Mac hard drive in order for it to bring me to the Mac login screen.
I'm thinking I might have to be at the mac login screen in order to do anything?
But I'm not sure.
I've been trying to guesss my way around with the track pad to try and click the mac harddrive logo (After holding option) but I can't seem to get it.
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Guess that wasn't to short of a story!!
Thanks,
Anthony

If an external display doesn't work, its possible your video card is shot or the connector is bad. The Mac Pro's video card is pretty easy to replace. If you have the Apple display I think there are some diagnostic lights that flash when something is wrong with the display itself.
You are talking about a "headless" Mac (no screen) so a search on that would turn up several options. What you need to do is use another Mac to boot up in Firewire Target Mode as a one-time operation. While in there, set your OS for remote screensharing access in the Sharing prefpanel. You can also enable "Remote Login" if you do command line and that is very useful for headless controlling.

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Sounds to me like an issue that requires service.
You can arrange online service here.
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Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

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You are still under warranty. Call Apple Care. Make sure you get a case number as all repairs have an additional 90 days of warranty.
#1 - You have 14 days from the date of purchase to return your computer with no questions asked.
#2 - You have 90 days of FREE phone tech support.
#3 - You have the standard one year Apple warranty.
#4 - If you've purchased an AppleCare Protection Plan, your warranty last for 3 years. You can obtain AppleCare anytime up to the first year of the purchase of your computer.
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Hi Julie,
Obviously no one can predict with certainty what the future will bring, but if I were in your shoes, I would certainly think there was worse to come.
Many things could be causing this, but it sounds like a short circuit or bad connection, possibly with the display cables running through the hinges, or where they connect to the logic board. It could also be a sign of the display dying, though they usually just get dimmer and dimmer or simply die.
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Random laptop screen Black out / Turn off .

Hi,
first of all my laptop is : HP Pavilion dv6-6160se Entertainment Notebook
to the problem now
A few days ago my laptops screen started out of a sudden shutting down/turning black( no lights at all ). This was happening while using the laptop at random. The screen had no lights, and if i use a flashlight on it there is nothing. like its turned off completelly.
Before this happens. Ths behavior varies. Sometimes it flickers from my desktop to a black screen then back on and some times not. Most of the times screen changed to a radom color (green mostly) then becomes black/shuts down.
NOTE: The laptop keeps runing, i can hear the videos playing so it probably isnt a gpu chip or gpu issue , music and games.
I searched the web for all kind of reasons that this could happen and tried some of the fixes .
Here are everything i tried and all or the details i could accumulate in past coupe of days:
1. If the screen flickers , blacks out and then turns back on i get a message that gpu drivers have stopped working and recovered ( on both amd and intel ).
2. If the screen blacks out, on rare ocasions if you close the laptop lid and let the laptop go to sleep , when waking up screen works again ( noticable due to screen moving)
3. I tried installing 4 different drivers all with clear install. ( didn't work)
4. I tried to to recover system with restore point. ( didn't work)
5. I tried to lower the screen brightness. ( didn't work)
6. tried this trick:
Turn off laptop
Remove battery
Hold the power buttong for 30-45 seconds
Plug-in the charger ( dont put the battery in )
Turn on laptop and see if it works.
Very Noticable details:
7. Since on of the rare fixes requires to move the lid i tried shaking the screen a bit or pushing it slightly to different directions. This actually does the trick and turns the screen back on ( i am right now typing this after using this "trick"
So, with this one as a hint there are a couple of stuff i have in mind but i am not sure and need help since i am not a technician.
a) There is a loose LCD cable and when i type a little vibration moves it and ends up in a black screen.
b) I read that if you use a flashlight and you cant see your desktop it means its a bad inverter.
c) Can the inverter have a lose cabe instead of the lcd ?
That's all the feedback i could give you that i can recall now.
Currecntly the screen looks ok ( maybe its the certain angle it has after i moved it so i would aprecciate a fast reply before it goes black again
EDIT: Tried to play a game for a few mins and i got the black screen again. Closed the lid so the laptop goes in sleep mode then opened it and it worked. Just for the records.
EDIT#2: Just tried to play a game again. got the blackscreen, shaked the screen a bit and it worked but for the 1st time i get the message " Application has been blocked from accessing graphics hardware" , Can it be that its the GPU after all or maybe drivers?
EDIT#3: Tried to play a game again and it seem to trigger the issue . ( i am currently running the laptop with only the intel drivers installed)
thanks in advance
Sincerely,
Ntas
P.S. Please feel free to ask me any question if you need more information, i am not a laptop expert but i know more than the average person
This question was solved.
View Solution.

Hi @Ntas
I have read through your post and it seems there are a couple of possibilities, and I noted that you have already tried several of the things I would normally suggest.
I will however post some of those links anyway for you to review, it is always possible there may be something in one of them that may have been missed or may inspire an idea of the cause. Since you mentioned that sometimes just moving the screen will cause the problem or make it disappear, that does seem like either a loose connection or maybe something like pressure on a part of the display causing the issue. Of course that last part may just mean the display is on its last legs, but hopefully not.
First I will give you a link to the service manual, to help you check the connections. Just be careful to read the sections on precautions, to protect yourself and to prevent any other damage.This manual is also useful in that it lists all the compatible parts, so if the display is defective you could use this guide to help order a compatible replacement if you choose to do so. HP Pavilion dv6 Notebook PC - Maintenance and Service Guide
Here are some other sources, that may be helpful to you.
Resolving Problems with Notebook Displays (Windows 7 and Windows 8)
Diagnosing a Liquid Crystal Display (LCD) for Damage
Also for your convenience here is the drivers page for your notebook.
HP Pavilion dv6-6160se Entertainment Notebook PC Drivers
I hope this all helps.
Malygris1
I work on behalf of HP
Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution.
Click Kudos Thumbs Up on the right to say “Thanks” for helping!

My iPhone's screen black, it does not work and I tied to hold press power and home press but it did not work? By the way for seconds I saw iTunes cabal simple, but unfortunately, I do not have backup for my iPhone in my mac, so how can I restore my iphon

My iPhone's screen black, it does not work and I tied to hold press power and home press but it did not work? By the way for seconds I saw iTunes cabal simple, but unfortunately, I do not have backup for my iPhone in my mac, so how can I restore my iphone without loss my date?
Thanks

lbryan1987 wrote:
I dont want the button problem solved i need to know how to restore the phone without using that button or going into settings
You don't in the condition it's in. You will either have to get the phone replaced by Apple or pay a 3rd party to repair it.
there seriously should be more than two ways to solve this other wise apple is useless and we will never buy another apple product.
Seriously? It's physically broken!

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I have to believe this has something to do with iOS 7 issues. I have taken my screen blacked out 5s twice to the Genius Bar and the found a bunch of system apps had crashed. So if this is the case, is iOS7 the problem?

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http://ipad.about.com/od/iPad_Troubleshooting/ss/What-To-Do-When-Your-Ipad-Wo-No t-Turn-On.htm
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http://support.apple.com/kb/TS3281
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http://ipadacademy.com/2010/11/ipad-frozen-how-to-force-quit-an-app-reset-or-res tart-your-ipad
iPad: Basic troubleshooting
http://support.apple.com/kb/TS3274
 Cheers, Tom

When starting Firefox 36 I Sometimes Get a Full Screen Black Screen

OK, I have NEVER before had this iisue with Firefox. ONLY after the use of Firefox 36 has it been happening.
I have seen similar issues mentioned on some other web sites, but no real answers.
What happens is after I have been surfing, a while, I shut down Firefox, and there are NO issues.
When I restart Firefox, it will sometimes come up with the ENTIRE screen black. The monitor power LED indicates I have signal and all that but nothing on screen I have to try various things and then I get my screen back. Now, as I stated, I have seen mention of this on other sites, BUT, no solid usable answers to how to fix let alone why it happens. They seem to mention that with as they call it "some types of web sites" cause some sort of issue with FF. Oh and it always was with older versions of FF (usually from FF 28 to FF 33) which also claim that "this issue should be cleared up with the next release".
Now, I do NOT have use hardware acceleration checked as I know it is an issue on my machine.
And NO safe mode does not appear to anything, but may ahve to do a bit more research.
BUT, what I really would like to know is if it is an addon, why is this issue SO random. I can surf a bunch of sites and quit FF, and restart FF and no issue, yet other times black screen again. This is why I am leaning toward it NOT being an addon, but instead something else. As to what? I have NO clue.
That is why I am posting here to see if any useful ideas crop up.

''FredMcD [[#answer-698567|said]]''
<blockquote>
You are talking about the whole screen, not just the Firefox window, yes?
Do you keep FF full screen? Try using the '''Restore Down''' (next to the
red X) to have FF in a smaller window. Then close / reopen.
Check this:
* see if there are updates for your graphics drive drivers
'''https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration'''
* disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
'''https://forums.adobe.com/message/4468493#TemporaryWorkaround'''
* disable hardware acceleration in the Flash plugin
'''https://forums.adobe.com/thread/891337'''
See also:
* '''http://kb.mozillazine.org/Flash#Troubleshooting'''
</blockquote>
OK, first item, NO I never use FF fullscreen EVER.
Second. I am using a nVidia GeForce FX 5200 PCI 128MB card. I have the last driver EVER released for it installed.
Third hardware acceleration is OFF in Flash as well as FF.
And lastly, the items I see listed in the FAQ for Flash Protected Mode DO NOT apply to me as this is when starting FF not when viewing YouTube videos.
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Screen blacking out?

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