I’m bemused

Photoshop: MacOS: Cursor Size Accessibility System Setting Affects Cursor in Photoshop CS6

Today I spent 3 hours on the telephone trying to figure out what was wrong with my new CS6 brush cursor which was twice the size of the brush effect, resulting in poor control of the brush function with a mouse. I run a MacPro Desktop with Mountain Lion. The tech and I went though a full 2 hours of painful searching to find out that the setting of the Cursor Size Slider in Accessibility within Apple System Preferences reaches through into the CS6 application and messes up the cursor in Photoshop. This does not happen in CS3. I just changed over yesterday and I did not have this problem. The tech said he would write it up. Maybe a patch in a future software update??? At any rate, be warned, you who wear glasses and have set the system's cursor size up so that you can see it better--it fouls up your brush cursors in CS6, and it is not readily apparent what the problem might be! I post this just so the info can get out on the blogs. If you are a member of the Adobe Photoshop users group anywhere, you could help by posting for unaware persons to find with a search engine until Adobe addresses this issue, as it can be a real "head scratcher" if you just stumble into it by installing CS6 on your system under your own user name.
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  • I’m indifferent
    I would add for you tech folks that more specifically, the problem is that the cursor size setting in Accessibility in System Preferences messes up the DYNAMIC LINKING OF ON SCREEN SIZE between brush and Photoshop cursor, causing the cursor circle to be larger than the brush's effect when being used and rendering control of the brush in any function (eraser, paint brush, etc.) very difficult to impossible.
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  • Chris Cox (Sr. Computer Scientist) August 29, 2012 04:47
    CS3 used a different API to draw the cursor, and Apple apparently didn't scale cursors drawn with that API.

    And what you're describing is how the OS preference is supposed to work: it increases the size of cursors. We'd have to draw the brush cursors using a different API, or request a new API from Apple to disable their cursor scaling.
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  • Aw so I am not crazy. Not being a tech head and finding little help elsewhere especially on the adobe site I hope that someone out there can help solve this problem. I was going to call adobe but after this story of the two hour phone conversation I believe I will hide in the dark until someone finds a solution.
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  • I’m wordy
    Since I am the one that made the original comment, I will just say that setting the Cursor size to a scale of "1" when using Photoshop is no big deal IF you know that this occurs when the cursor size is set to larger than "1". Chris is right, of course, that the Apple Accessibility Cursor Size feature, put there to aid the visually impaired such as me, is supposed to change the cursor size on the screen. The problem, Chris, is NOT that it happens, the problem is that it happens without one's knowledge, and therefore the CS6 user is left with cruddy functionality until, by hook or crook (as we did on the telephone), they figure out what is happening. It's easy enough to change these settings. What's an API? (Apple programing interface?) It's nice to see from Michael's comment that I am not the only person to experience this "bug-a-boo". It would be infrequent since most folks never use Accessibility options.
    • Chris Cox (Sr. Computer Scientist) November 05, 2012 02:45
      API = application programming interface, code provided by the OS for applications to interact with the OS

      If Apple can inform the application about cursor scaling, then maybe we can provide some warning. But now on Retina displays, everything is being scaled automatically -- so there is no easy way to tell what is OS scaling and what is user requested scaling.
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  • OK so here comes the 64,000 dollar question. How do I correct this. Where do I change all this??!! I have searched everywhere and still no key action, no preference change anywhere that seems available. Is this all Mt Lion because before putting it on my mac I had no problems. If I could go back I would never have upgraded. Where is the Apple Accessibility Cursor Size feature accessed on my computer. I have work to do and this is a real drag. I appreciate you input. At least I have some hope I can correct this with your help.
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  • 1
    OK problem fixed thanks for the help. I do not know if you can change the cursor size with keyboard shortcuts but my cat gets up on my work table at times and in the past has walked across my keyboard and changed several functions on my computer. So this could be the basis for the start of my problem. Again thanks!! At least now I know where to go if this happens again.
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  • Hey I am back. Now no cursor visible except a small cross hatch. Yikes am I going to go back to Universal Access mouse and change the cursor size, and dam things were going to smoothly. Oh well thats computers for you!
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