MacBook mb402ll/a screen display
Hey guys,
My MacBook I just bought is having an issue so when I turn it on you can barely barely see the screen but it does produce a image I belevel it is the back light on the screen? What do you think is wrong and how do I fix this?
Hi paulethe3rd,
If you are having an issue with the display of your MacBook, I would suggest that you troubleshoot using the steps in this article -
Apple computers: Troubleshooting issues with video on internal or external displays - Apple Support
Thanks for using Apple Support Communities.
Sincerely,
Brett L
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http://www.screencast.com/t/WhG1h5dBh
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Thanks!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, or by corruption of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
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Welcome to the Support Communities!
Resetting your computer's PRAM should restore your Macbook Pro's screen appearance.
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
This article may provide some information about your Mini DisplayPort to AVI adapter. Have you tried to connect a different VGA monitor to your Macbook to see if you get the same results?
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
http://support.apple.com/kb/HT3382
18. What is the maximum resolution available for use with the Apple Mini DisplayPort to VGA adapter?
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Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573#5
How can I detect displays?
If the detect displays option is not available, hold down the Option key while you are in the Display pane.
How do I select additional resolutions on my display?
You can use the Display pane of System Preferences to specify how your display works. Not all options appear for all display models. By default the best resolution for your display will already be selected in System Preferences.
To select a different resolution, use the Scaled option. Some additional resolutions may be available when you hold the Option button.
I hope this information helps ....
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When I try to check for the display model with he command
ioreg -lw0 | grep "EDID" | sed "/[^<]*</s///" | xxd -p -r | strings -6
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@.`0 6
Color LCD
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Manufacturer: 00000610
Model: 0000A020
Manufacture Date:CD238700
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I brought it to apple customer service and they cant duplicate the issue. I told them its random and they should wait for it. They said theyve been watching tv shows in full scrn for 2 days already and it didnt happen. I even showed them video clips - I record the tiny dot flickering using my iPhone - but still they cant reproduce the issue. After I brought it back home, I immediately watch a TV show and see it once again. It dosappears once you minimize it and returning to full scrn mode the flickering disappears.
So I thought Why would it disappear once I minimize it? If its hardware then it should be there all the time! and so I use VLC player instead to check if it would happen as well. for sevral days, I used vlc player to watch all movies/videos and IT DID NOT HAPPEN AT ALL! There is no tiny white dot flickering with VLC! and so I thought maybe this is firmware or driver...and so when the macbook pro has an update recently about 2.0 something...I thought it would resolve the issue but it didnt.
I have inserted a copy of the flickering tiny white dot... -
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Model Name: MacBook
Model Identifier: MacBook4,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 3 MB
Memory: 4 GB
Bus Speed: 800 MHz
Boot ROM Version: MB41.00C1.B00
SMC Version (system): 1.31f1
Sudden Motion Sensor:
State: Enabled
Chipset Model: GMA X3100
Type: GPU
Bus: Built-In
VRAM (Total): 144 MB
Vendor: Intel (0x8086)
Device ID: 0x2a02
Revision ID: 0x0003
Displays:
Color LCD:
Resolution: 1280 x 800
Pixel Depth: 32-Bit Color (ARGB8888)
Mirror: On
Mirror Status: Hardware Mirror
Online: Yes
Built-In: Yes
Philips 191EL:
Resolution: 1366 x 768 @ 60 Hz
Pixel Depth: 32-Bit Color (ARGB8888)
Display Serial Number: AU11103006796
Main Display: Yes
Mirror: On
Mirror Status: Master Mirror
Online: Yes
Rotation: SupportedHi, firetiger.... i have the EXACT same problem!!! i have the same Macbook aluminum unibody screen also. I have no idea how to fix it. I'm also out of warranty and i've tried everything... resetting the pram, trying to restart in safe mode, trying to boot from a cd... .NOTHING WORKS!!! i can still control brightness itself but ive never tried attaching to an external monitor. I know everything is loaded correctly... i just don't know whats wrong. If you have any ideas.. please let me know. Also, I think apple will fix the macbook pros with a similar issue for free http://support.apple.com/kb/TS2377 but i know this doesnt apply for me. hopefully they work something out because I really love that computer!!!
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Call your local Apple Store and ask them. Or take it in and they will give you an estimate. Cost depends on what is actually wrong.
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[email protected]Maybe this will help +Use a MacBook with the main display off+:
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NVRAM reset is command, option, P and R.
Restart the computer and immediately hold the four keys down. Keep holding the keys down, and let the Mac chime three times, then release the keys. Be patient it could take some time.
That being said what you describe may be a hardware issue, so the NVRAM reset probably won't work.
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