graphic output problems in most programs - triangles ...

Question

- often at scrolling in the Finder

- it appears spontaniously and dissappers/flicker if mouse is moving ...

- in some programs it is permanent for example 3D Coat

- different often and strong in different programs - in some there is no problem (5% - for example ZBrush)

- Mountain Lion does not fix it - only some changes - for example Quicktime (not Fullscreen) a big triangle in the down left

- little greeen/red pionts, like defect Pixels, in little groups are appearing too! - Photoshop, Final Cut Video Output...

Mac Pro, OS X Mountain Lion

Posted on Aug 17, 2012 10:40 AM

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Answer 1

That sure looks like a graphics card problem to me.

What aftermarket add-ons are you using? could one of them be causing a problem?

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Answer 2

The Mac is pur original. So you mean a change of the grafic card will fix it?!

It's not clear for me why I can screenshot a hardware-output-problem!

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Answer 3

A screenshot give you a copy of what is actually sitting in the screen buffer.

So this is not an "output" problem. That stuff has been messed up in the screen buffer.

to draw the mouse cursor, the area around the pointer must be re-constructed. That is why moving the mouse cursor seems to "repair" it.

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