[bloodline]

Does anyone else have strange Horizontal GFX glitching when using the 9400 on their MBP?

Here Is a Video I made a moment ago... IT's funny, if I run a Video/DVD the glitching isn't there,but go back to the desktop it comes back... If I put it into the 9600 Mode it goes away... then it comes back if I switch the 9400 on again... What is the deal with that?

This is actually it not being too bad... it can get so bad the screen isn't readable!!!

http://www.youtube.com/watch?v=wIN8C20afmk

I will post a better video if I can later...

[Maflynn]

Sounds like a defective GPU.

I tried watching the video but I'm sure of what to see. I did see some horizontal glitches which I assume that's what you meant. At first it almost looked like glitches from your video camera, but I didn't see anything else occur so I'm figuring that was it.

I'd give apple a call and/or bring it to your local apple store. I've not had any problems running off the 9400 on my MBP.

[bloodline]

Originally Posted by Maflynn 

Sounds like a defective GPU.

I tried watching the video but I'm sure of what to see. I did see some horizontal glitches which I assume that's what you meant. At first it almost looked like glitches from your video camera, but I didn't see anything else occur so I'm figuring that was it.

That's exactly right, You don't really notice it at first, but it gets worse over time... One point it got so bad the screen was unreadable... I'm hopping it does it again when my camera is around so I can film it!

It's very weird as it only happens on the desktop... Quicktime (full screen), DVDplayer (full screen), footballmanager (fullscreen) and Ableton live (fullscreen) don't suffer from this problem... also switching to the 9600 is ok too... which leads me to think it's a driver problem rather than hardware...

I'd give apple a call and/or bring it to your local apple store. I've not had any problems running off the 9400 on my MBP.

Yeah, I think I will... I was hoping for a sotware update to fix it :-(