Display glitch that's been annoying me for a while

[htg]

The display on my Macbook has a minor problem. Quite often, the screen turns VERY dark (you can still see the desktop if you really look). To fix this all I have to do is move the display up and down a bit and the screen returns to how it was before but this problem keeps happening and I was wondering if there was a definitive way to fix it.

Thanks

 

[Menge]

Under Preferences > Displays, do you have automatic display brightness on?
Under Preferences > Energy, do you have "Dim displays before entering sleep" on?

 

[htg]

I don't think that's the problem. Why would my Macbook want to go to sleep when I'm using it? This happens when I'm using it not when I don't use it for a while.

 

[spinnerlys]

I don't think that's the problem. Why would my Macbook want to go to sleep when I'm using it? This happens when I'm using it not when I don't use it for a while.

The brightness setting could be the "problem" though, as it adjusts the brightness according to ambient light, so at least take a look if that may be the issue.

 

[htg]

My brightness setting is at maximum.

 

[Rhalliwell1]

Sounds like the display backlight might be faulty. Can you take it to an apple store?

 

[Menge]

My brightness setting is at maximum.

We're not asking if it's at the maximum. We're asking if it's set to be automatically adjusted, under Preferences > Displays. There's a checkbox there.

 

[htg]

Its not as if its a major problem as I said. If there isn't a quick fix, I probably will just do nothing and use it as it is.

 

[spinnerlys]

Its not as if its a major problem as I said. If there isn't a quick fix, I probably will just do nothing and us it as it is.

So in other words, you didn't look at System Preferences > Displays >

?

Okay.

 

[htg]

I did. I looked before you even posted anything in this thread.

 

[spinnerlys]

I did. I looked before you even posted anything in this thread.

So that is not the problem?

Any other guesses around here?