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Inspiring
August 3, 2011

P: Inaccurate selections with Radeon graphics cards on Mac OS

  • August 3, 2011
  • 116 replies
  • 1299 views

After installing Lion, selections with the Rectangular Marquee Tool generally are reduced by one pixel when the mouse button is released. For example, dragging a 25x25px square results in a 24x25px selection.

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116 replies

Inspiring
January 13, 2012
thanks Michael, found your workaround suggestion for the selection tool and it's doing the trick just fine. Much appreciated.
Inspiring
January 13, 2012
Bingo.
January 13, 2012
Thanks, Chris. So basically, everyone waits for an OSX, not Adobe CS update?
Inspiring
January 13, 2012
Yes, we know about that and similar problems (cursor is not in the right place, shifts, etc.). Apple is continuing to work on their driver bugs in 10.7.
January 13, 2012
Here's video explaining the part about color picker.
You have to try to pick color of a particular pixel from area with a lot of different colors in it (text with anti-aliasing is a good example). You'll see that when I pick color and release mouse button, cursor changes to a circle and a different color is selected.

http://youtu.be/l_63dIYKGlo

Similar trouble with the selection tool.
January 12, 2012
As it was mentioned above, the selection tool is not the only one affected.

When using color picker and dragging cursor to pick color from a certain point, on mouse release, cursor changes from eyedropper to a brush-like circle, and shifts 1px to the left.

So annoying.

MacBookPro
AMD Radeon HD 6490M
MacOSX 10.7.2
Inspiring
January 11, 2012
I have this same issue on Windows 7 running a Radeon HD 6800 card.

It's annoying, but Michael's suggestion above to make selections based on actual cursor position rather than the actual selection box/line/marching ants works like a charm.
December 9, 2011
Thanks for taking the time to reply. I hope we can get this sorted out!

Shot in the dark here, but, I if there are any interim work arounds that you guys have come across or that might be worth trying, i'm happy to be the guinea pig. Just let me know.
Inspiring
December 9, 2011
You are reading things into my replies that simply do not exist. I'm giving you the facts - that is all.
Participating Frequently
December 9, 2011
Michael- I just needed a little clarification, so thanks.

Chris- Your attitude toward people who are taking the time to provide feedback about Adobe's products is insulting.