Macbook boot up problem

[jasonizz]

Hi. I have a Mac Pro 2012 with Yosemite installed.

Recently on boot up, I get a screen full of crazy colours and lines (can supply a picture if required).

I adjust the screen either up or down slightly and it seems to right itself.

Could this be the result of a loose or faulty graphics card/cable?

I did an extended Apple Hardware Test (AHT) and it came back with no errors.

Thanks.

 

[macmannate]

It's your monitor one of my screens does that at random also

 

[jasonizz]

So what's the solution?

It's a new (enough) computer- surely it's a fault of some kind.

 

[flowrider]

You say MacBook in the Title and Mac Pro in the text. What are we talking ab out here?

Lou

 

[jasonizz]

It's a Macbook Pro. Model A1278.

Sorry maybe I've posted this in the wrong forum.

 

[flowrider]

^^^^Yep, you should be here:

https://forums.macrumors.com/forums/90/

Lou