P: Inaccurate selections with Radeon graphics cards on Mac OS

[FeedbackCommunityMember]

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.

[Guest]

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

[Guest]

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.

[FeedbackCommunityMember]

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.

[Guest]

Thanks, Chris. So basically, everyone waits for an OSX, not Adobe CS update?

[FeedbackCommunityMember]

Bingo.

[FeedbackCommunityMember]

thanks Michael, found your workaround suggestion for the selection tool and it's doing the trick just fine. Much appreciated.

[Lars Holmgaard]

I have the exact same problem on my iMac with OSX 10.7.2 and Photoshop CS5 v12.1. Immensely annoying and time consuming.

Apple, hurry up!

[Guest]

By the way, I'm just wondering -- do Adobe developers report all these issues to Apple? I mean, Mac has reputation of a preferred platform for all kinds of designers, so I was wondering if Apple is aware of this platform's conflicts with Adobe products.

[FeedbackCommunityMember]

Yes, we do. But Apple really needs to hear it from end users.

[Lars Holmgaard]

You are right. I have just submitted the bug via Apples Feedback and encourages everyone else with the problem to do the same:
http://www.apple.com/feedback/

I just heard from two of my friends that they have the same problem on a brand new iMac bought after Lion was released, a 1,5 year old iMac i7 and my own iMac from 2007.

On my Mac it does not make any difference if I turn off the OpenGL settings on the performance tab in Photoshops preferences.

[FeedbackCommunityMember]

Experiencing the same here with the selection tool, until I disabled OpenGL Drawing and relaunched Photoshop. I still see that sometimes when I drag, the marching ants no longer line up perfectly with the cursor. When I release the mouse, the selection is based on where the cursor is. I guess this is what Michael meant above. Thanks.

MacBook Pro
AMD Radeon HD 6770M 1024MB
Mac OS X Lion 10.7.2

[iirsharp]

I believe there's a regression in Photoshop CS5 (and maybe CS4?) in that at 100% zoom, attempting to marquee an exact rectangle will often result in the marquee being off by a pixel in either dimension. Extremely frustrating. I'm using a standard Apple wired mouse and in any other application, I can marquee with single pixel accuracy. Only workaround that exists (which hurts productivity) is to zoom in at least 200% (but 300% or higher works even better).

Specific example: Have an image of say 1020 by 768 at 100% zoom. Attempt to marquee a middle area of 200 by 100. When the mouse is still down, the Info inspector will show you that the area is indeed 200 by 100. Releasing the mouse button will then often end up giving you a marquee of 199 by 100, 200 by 99, etc.

[hl-jaxxon]

Exactly!! I have to try 4 or 5 times, often, to get the marquee or shape later to draw to the pixel size when the mouse button is released. If you watch the dimensions in the Info box, you will see this for sure. It's incredibly annoying.

Something new: when using the eye dropper, when you drag over an area with the mouse down, watching the color selection change, when you let go of the button, it often jumps to a neighboring pixel. This is most notable on edges. Say you want to sample a color on the very edge of a gradient. It often grabs a pixel near by.

Come on guys. Let's get this working.

[hl-jaxxon]

All that you describe is exactly what I'm experiencing MANY times per day on a daily basis. It's infuriating. 😞

[hl-jaxxon]

Actually the eye dropper isn't new. Several people above has mentioned it.

[hl-jaxxon]

Any progress on this? It's beyond frustrating at this point!

[Guest]

Well, I just did the same. Let's just hope it's one of the priority bug fixes in Apple for the upcoming release.

[FeedbackCommunityMember]

Are any of you getting this with other tools? I'm experiencing all the above, but also something similar when moving layers http://feedback.photoshop.com/photosh... Am wondering if it might be related.

[Guest]

Now that's a new one.
Zoom, make multiple selections, move document to the left or to the right.
And voila :-)

MacBookPro
AMD Radeon HD 6490M
MacOSX 10.7.3

[FeedbackCommunityMember]

OK, Apple has not yet fixed all the video driver bugs on MacOS 10.7. Please let Apple know that this is important to you, so they'll give a higher priority to fixing these bugs.

[FeedbackCommunityMember]

Having the same issues - switched from pc to mac and now I want to go back 😞

[FeedbackCommunityMember]

just turned off my OpenGL and it is working much better...too bad, cause now the program isn't as smooth

[FeedbackCommunityMember]

This is pathetic. Eight months since being reported, and no solution in sight. I have the same problem on a mid-2009 17" MacBook Pro. Marquee selections and slider adjustments are both unreliable. This is completely unacceptable. To top things off, the only reason I upgraded from CS4 to CS5.5 late last year is because, at the time, Adobe said you would have to pay full price to get CS6 if you weren’t upgrading from CS5.x. I know Adobe has since changed course on this (thankfully) but I’m still out the roughly $500 I spent for the upgrade and will have to spend another $500 or so to get CS6, which will hopefully fix the issue. No other graphics app on my Mac has these kinds of problems. Seriously, screw Adobe.

[commandtab]

I just tried out the Photoshop CS6 beta on my MacBook Air, and the bug appears to be fixed or worked around, because selections are dead-on, with or without OpenGL. This fix, plus the other additions to CS6 (in particular, the Layers panel improvements) will make this a must-have upgrade for me!

[FeedbackCommunityMember]

We have a couple of workarounds for Apple driver bugs in CS6.

Apple is slowly fixing driver bugs in 10.7, but hasn't gotten them all yet.