MacBook Pro 5,4 - Black internal Screen - external display working
Hi everyone, I've recently been donated a MBP that works in every way except the builtin screen is just black. I hope someone can help
I've searched these forums, google, youtube and others and tried all sorts of things but the internal display won't work.
So far:
- SMC / PRAM reset - multiple times
- Replaced display panel. This is LED backlit so no inverter.
- Replaced LVDS cable
- Checked all connections are tight
- RAM has been replaced and checked
- Apple Hardware Test reports a clean bill of health
System Profiler reports 9400M with "No Display Connected" for the internal display but external is fine.
The system runs absolutely fine with the exception that the internal display doesn't work at all.
Can anyone help me? Really hoping "replace the logic board" isn't the only answer.
Many thanks for any clues,
Simeon
Hi Michael, thanks for your reply.
Regarding the GPU failure, I had my doubts about this simply because the external display at any resolution and 'screen share' are fine and that would seem to imply the GPU itself is fine.
I don't have an answer and I suspect it's going to require a new logic board, but from what I know that is an expensive fix and that would be unaffordable meaning the MBP will effectively become a MacMini which I'd really like to avoid.
Is there anything else I can try?
Simeon
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Can see the PC volume from Mac side with files.
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Specs:
2009 Macbook Pro, 3.06 GHz Intel 2 core, Max 10.6.8.
Model Name: MacBook Pro
Model Identifier: MacBookPro5,2
Processor Name: Intel Core 2 Duo
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L2 Cache: 6 MB
Memory: 4 GB
Bus Speed: 1.07 GHz
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Serial Number (system): 7302300GANE
Hardware UUID: B2D4B4B4-CD92-5C7A-BDC2-527D30DD8DF3
Sudden Motion Sensor:
State: EnabledEDIT: RESOLVED
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My new macbook pro has gone black on me three days in a row. is this a chronic problem?
The only way to get it back is a hard reset or let the battery die and then plug in the charger. The brightness is up and the power stays on while screen is black.
This is the second macbook pro i have owned in the past two weeks. I am ready to return it for good if this is a chronic issue. Please help if you have had this same issue.Try a SMC reset:
http://support.apple.com/kb/HT3964
Try a NVRAM/PRAM reset:
http://support.apple.com/kb/HT1379
If no joy, take it back, and take full advantage of your warranty!
You also may want to let Apple know about this as well:
http://www.apple.com/feedback//
I wish you the best -
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http://www.everymac.com/ultimate-mac-lookup/
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Message was edited by: S.U. -
My macbook pro will turn on but screen stays black.
My macbook pro will turn on but screen stays black. There is no sound on start up and keys dont light up. I have done all the resets:
I disconnected the computer from the power cord, and from all other cables.
I held down the power button for several seconds to turn off the computer.
I let it sit 5 minutes.
I restarted the laptop while holding down the Shift key and nothing happened.
Holding down Command, Option, P, and R to reset your PRAM and NVRAM
http://support.apple.com/kb/ht1379The only thing I haven’t tried is “floating” the computer. I’m not ready to heat it up to the melting point.
I need lots of help!!! any ideas? Its a MacBook Pro 15” or 17.5” about 5 years old. Its about 2 updates behind (OS: Snow Leopard)Zane W is giving you good advice. Take it to an Apple store genius bar and have them examine it for free. You then will know what the issues are and then can make informed decisions.
Ciao. -
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Hello nothingissecret
Check out the article below for troubleshooting steps to resolve the issue. One would be to try a different cable or adapter to test with the television.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/ht1573
Thanks for using Apple Support Communities.
Regards,
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HT2494 2012 MacBook Pro - no sound from internal speakers, red light in headphone port
Mid 2012 MacBook Pro 15".
I normally use external speakers plugged into headphone jack.
The other day I unplugged the external speakers and when I re-booted my Mac, I got the start up sound
but I have no sound coming from my internal speakers. In System preferences sound output I see no entry for internal speakers.
I also notice a red light shining in the headphone jack port. I see on youtube that this problem is rather widespread.
Some suggest using a paper clip to try to turn the light out, but I am not doing that.
I have Lion installed, tried using the MIDI-app to reconfigure the speakers, but I only get sound if the headphones are plugged in.
Is this a software or hardware problem?
I have a genius bar appointment today at my local Apple retail store, and my mac is still on warranty but this
is troubling that you spend $2300 for a laptop and after a bit of regular use the internal speakers no longer work.
Any ideas?
thanks.I agree Nick - it is a concern especially on such a basic function (sound) - Linc is right, the issue is microswitch, sounds like a bad design or a huge batch of sub quality switches, checking the forums this issue is common on MBP's.
Judging by the date and lack of further activity I assume you managed to get yours fixed at the genius bar ?
I finally fixed mine myself but posting reply for others who have same issue as this - however buyer beware folks, try this at your own risk !!!
The fix won't be liked by Apple Support, the genius bar, or the repair shops but it worked for me after over 12 months of using headphones / external speakers - WHAT A PIA !
Method -
Held Macbookpro on it's side with screen open and headphone/ audio port facing toward ground.
Took WD40 can with straw dispenser and placed straw inside audio port - sprayed 3 or 4 one second burst of WD40 into port.
Held MBP that way for 30 seconds giving MBP a shake to drain WD40 out
(I performed this whole excercise outside where the WD40 could drain out without an issue ;-)
I then took an old set of headphones and re-inserted / removed them from the audio port approx 20 times in and out with music playing on the MBP - intially when inserted music will only come from headphones then eventually MBP internal speakers start working !
I've tried everything else including the cocktail stick and bent pin inserted inside the port to try and free micro switch - nothing worked it was stuck fast.
As stated, can't endorse this for anybody else - you do so at your own risk - just stating this is what I did to get mine working again ! -
I bought mini-DP to DVI frome Apple several monthes ago and it worked well in that time until yesterday the external monitor show me no signal sign. Other PCs were connected with the same cable and monitor and they are fine. I am wondering there is something wrong in the adaptor or macbook pro. Furthermore I found the external monitor can display nornally when I switched to 9400 graphic card and used mini-DP to VGA adapter. If I switch to 9600GT no signal again. If I switch 9400 using mini-DVI, it is shown on the external screening: Out of range... In a word, In the mode of 9600GT, mac can not recognise external monitor(I can not detect it in the systerm preference even I press detect display buttun) and 9400 works in VGA mode. However when I connect adapter to mac, the screen showed blue flash.
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I do not know whether I shoud change the adapter or the single-link DVI cable to dual-link. Someone said it is useful in their condition. I tried some methods from BBS, such as connected when devices were off and then open, and so on. I failed.
Any suggestion for this problem?
Addition: OS: 10.7.4(Lion)I turns out that the logic board of my MacBook Pro was faulty (despite being brand new).
I took it to the Apple Store, presented the problem, and one of the Tech's came to the same conclusion that I had -- hardware failure. Phone support was no help in the matter (and even told me that what I was trying to do wasn't a supported option, which is rediculous). However, the Genius Bar did take care of the problem, and my MacBook Pro was back to me with a replaced logic board within a few days.
Hope that htis helps. -
I want to remove the monitor from my 17" Macbook Pro 2008 to use as an external for my Macbook Pro 15" 2012. How can I convert lvds to Thunderbolt and power the monitor?
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