Macbook screen suddenly becomes DARK!!

I have never had this problem before and I have had my macbook for a little more than a year. Just the past week, the same thing happened for about 5 times. My macbook's screen would suddenly turn dim that I can hardly see anything on the screen. And it also won't respond to the button to turn the screen bright and stayed very dark. I would then have to restart the computer once or sometimes even TWICE. I am not sure if it is a software problem of the OS or it's a hardware problem. Does anyone have the same problem and is this problem fixable by myself?? Thanks in advance for the help!

Macbook 2GHz, Mac OS X (10.4.11)

Posted on Aug 9, 2008 10:48 PM

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11 replies

Sep 17, 2008 11:00 PM in response to Angie Chong

I've had my macbook 15" for 2 weeks and it suddenly went dark. I could barely make out the screen to restart my computer. It was like searching in the dark for a needle!! When I restarted it was fine but I don't want to have to worry about it. Is there a certain setting that I need to change???? HELP! Battery was plugged in when this happened.

Sep 29, 2008 9:50 AM in response to Angie Chong

Some feedback for anyone that has this same problem.
OK, the problem I had with the screen and dimming was resolved by Apple. I took it to Apple service this weekend and they took care of the problem within a couple of minutes and now no more problems. All they did was reset the System Management and sapped the PRAM. See the attached link for resetting the System Management Controller..... http://support.apple.com/kb/HT1411
They did this and then sapped the PRAM and no more problem. Hope this helps. Nice to have a screen that doesn't dim anymore!

Oct 31, 2008 11:40 AM in response to hmcmorran

EDIT: to my above post, I realised that the screen would only go dark in the middle of importing music from cd. There would be a definite click, the screen would darken to its lowest setting and the import would be frozen. Now this only started occurring after the migration and dvd/cd sharing update 1.1. So what I did was shutdown and disconnect all power from my computer including the battery and restart. note the post here: http://discussions.apple.com/thread.jspa?messageID=8323351&#8323351. Everything seems fine so far.

Sep 19, 2008 3:15 PM in response to BazookkaJoe

im no expert could you see anything at all on the screen. the backlight might not be working or something. or what i sometimes do is turn the brightness on my screen right down so you basically can't see anything. try that and see if it replicates what you all saw when the screen randomly went down. sometimes the computer puts the hardisk to sleep whenever possible on the battery settings but i doubt that you wouldn't have notices that before. i dont see if this can help but its to the best of my knolledge

Oct 11, 2008 8:38 AM in response to DRL49

and even some more feedback - hopefully it will be helpful for someone.
in my case it turned out that i accidentally messed up my 'energy saver' settings. The display was set on 'go to sleep' when the computer was inactive for 1 minute which could have caused the strange behavior. since i have changed the settings i had no problems so far.

Oct 25, 2008 6:18 AM in response to Guyana

I have just had this problem. I have had this macbook 2 years and have had no problems before. The screen went to its darkest setting. What I did was turn the brightness buttons to minimum brightness then the screen caught up with them. But it happened again, then again then the computer forced shutdown by itself. Reasons? I had been importing a lot of CD's. The problem occurred when the disk drive was being used i.e. importing the CD into itunes. The CPU temperature was above 60 degrees celsius and 80 degrees at one point. more than 110 percent of RAM was being used out of 200 percent. Are these helpful factors? I was using only mains power set to 'better performance'. When the Disk Drive is running fans don't exceed 3000rpm to cool the CPU. Any suggestions?

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Macbook screen suddenly becomes DARK!!

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