P: Inaccurate selections with Radeon graphics cards on Mac OS

AMD Radeon HD 6490M 256 MB

I don't have access to my home machine. It's a couple years older so it's almost certainly a different card.

Seconded. I see the issue exactly as I video-captured (above) on my 2.13 GHz Late 2010 MacBook Air with an NVIDIA GeForce 320M 256 MB card. That makes two machines for me as well, with different graphics card manufacturers.

Chris, I think what we're all hoping for here is that, if it's an Apple bug that's affecting Photoshop, we'd like to see Adobe work with Apple to get the issue resolved. And if it's not an Apple bug, we'd like a fix from Adobe for the issue.

*Give me your graphics card name, not the physical card itself. 🙂

For rectangular marquee? If you give me your graphics card I can see if I can reproduce that. That would be a slightly different behavior from what's mentioned here. The final drawn marquee should still be drawing at the crosshairs of the cursor position on mouse up.

So.. Why does the problem only occur in Photoshop?

You're complaining about an Apple video driver bug....

Actually, it doesn't. That's the problem...

Hi,

We're investigating this issue. As a workaround, if you base your selection on the cursor position instead of the marching ants positions, the selection should still be faithful to the cursor position on mouse-up.

Same problem here, on both an iMac and a Mac Pro with an NVIDIA card. It's not limited to Radeons.
Adobe, get on it.

This is so crazy there is a topic for this, I just assumed it was broken on my machine, but the fact that so many users are having issues with it, well, it's kind disheartening. I'm a designer so when things are inaccurate my work suffers, if my work suffers I don't get paid, ipso facto, I get hungry. Little help adobe! Your products rock!