Problems with Video Display on a new Aluminum iMac

[drh64]

I have had this happen on two different IMacs and only when we run AC 11.

It seems to be triggered by Itunes running at the same time.

Has anyone else witnessed this before? Any suggestions?


http://www.connect-arch.com/graphics-problem/scatter.mov

[Dwight]

Hence: your cranial flare. Should we call John Wayne's Hellfighters?

How about this for a weird problem:

Now having the Pieces of Eight Cores machine myself since Friday morning, with the Oldsmobile 8800 card [512 cu. in. video], in cover flow view, when a large preview crossfades across, the entire screen "winks."

But only when the display is rotated 90 degrees.
Hahaha,
And so it goes.

[Anonymous]

FWIW we have the same problem (the Zaha-jaggy display) on two machines - Core2Duo MacBookPro and one of the new iMacs.

Ditto what he said: "and so it goes".

[Andy Thomson]

So it appears that this thread is not resolved yet? many users in our little part of the world are complaining about this issue. Seems to be more of a problem on the iMacs - both old and new. Switching apps (cmd+tab) temprarily remedies, restart makes it go away - for a while. The problem does not seem to limit itself to applications, but it does seem more prone to misbehaviour when switching into OpenGL 3D in AC.

Does anyone know how to resolve this problem for good? It lurks now even as I post this!

[Karl Ottenstein]

I had the worst case of this yet last night on my Mac Pro - and this after the recent Apple firmware update for the ATI 2600.

See the attached (low res) QuickTime movie from my cell phone with Time Machine open. Instead of a moving starfield, the polygons are flashing all over the place.

The lousy cell phone video compression makes it look like things are pixelated, but the polygons were clear, sharp triangles (typically) as in the other screenshots here.

Had to restart the machine to get things back to normal.

Karl

[drh64]

I have had the problem occur ONCE in the past month+ since receiving a new video card and power supply. So my problem seems to be fixed for now.

Knock on wood: now that I post this, it will probably happen tomorrow!

[Karl Ottenstein]

I contacted Apple and was told that this is in their bug database as bug 5531392. Hopefully we will see a fix soon - whether it is hardware, firmware or OS.

Karl

[Anonymous]

5531392

that's a lot of bugs

[Anonymous]

I just noticed "Leopard Graphics Update" in my software update window. Perhaps this is the fix we have all been waiting for.

[Karl Ottenstein]

Matthew wrote:
I just noticed "Leopard Graphics Update" in my software update window. Perhaps this is the fix we have all been waiting for.

Weird that you're just seeing that update, Matthew. It came out on February 11th:
http://www.apple.com/support/downloads/leopardgraphicsupdate10.html

unless this is a new one that applies to MBP? (Nothing newer shows up for me on Mac Pro.)


If it is the Feb 11 update ... it did not fix the problem for iMac or Mac Pro folks.

Off topic: a Mac Pro firmware update released on Friday seems to have fixed the reboot-on-wake problem with the new Mac Pros. Very happy about that one!

Cheers,
Karl

[Karl Ottenstein]

leporello wrote:
5531392

that's a lot of bugs

Let's hope that the digits are a code that includes OS version and other stuff and not an actual numerical count. That would indeed be scary!


Cheers,
Karl