MacBook screen goes black while active
Hi, this problem started to show up just about 7 days ago. Periodically, while I am actively using the computer (browsing the web, typing in word, etc.), the screen goes black, as if it is sleeping, but I am in the middle of doing something, the computer is not in idle mode. The only way to "wake it up" is to close the lid (screen) and reopen it, or to continue hitting the brightness button (low brightness) until it reaches this “calibration” point and the press the brightness (high brightness) until the screen becomes normal. The other thing is to turn it off by holding the On/Off button, remove the battery and replace it again. This problem is really annoying. I have been reading about this issue through the weekend and I have tried the following suggested statements which I have found on the Internet.
- Reset PRAM and NVRAM
- Reset the SMC
- Reinstalling MAC OSX (10.5.8)
But nothing helps.
The battery is not low, no warning has come up about using reserve power, or needing to plug in. And I have checked the power options as well.
It is very frustrating!
I have read on Apples page (link below) that this is related to the Nvidias graphic processor released in 2008. But here they only state that the issue is on MacBook Pro. This MacBook is bought in 2009 and I’m facing exactly the same issues as in the description. What to do?
MacBook, Mac OS X (10.5.8)