Maybe this would do what you want:

http://codykrieger.com/gfxCardStatus/

cheers,

/Patrik

On Wed, May 12, 2010 at 5:23 PM, Christiaan Hofman <cmhof...@gmail.com> wrote:
>
> On May 12, 2010, at 20:36, Matt Mollison wrote:
>
> Since I can't find a way to comment on the bug that I opened and was closed
> almost immediately
> <https://sourceforge.net/tracker/?func=detail&aid=2999543&group_id=192583&atid=941981>,
> I thought I would post this issue to the Skim users list to see if anyone
> else has noticed it and/or has a workaround. Maybe I was wrong to classify
> this as a bug (as hofman seems to think), but I didn't know where else to
> put it—this didn't seem like a feature request when I originally posted it.
> To summarize, I recently bought a new MacBook Pro (released April 2010 with
> the i5 and i7 processors; relevant to the following issues is that they
> switch between built-in and discrete graphics cards on-the-fly, and noticed
> that using the Search PDF function (Option-Command-F) in Skim causes the
> more powerful discrete card to become active. Also, the discrete card also
> stays active after both closing the search pane and closing the PDF. Having
> the discrete card on uses more battery, which is not something that I want
> to happen on a laptop when just reading a PDF.
> The source of the graphics card switch is any use of Core Animation (CA); in
> Skim, CA is used to display the graphical transition to the search results
> pane after using the Search PDF option. Other people have noticed the switch
> with apps that use CA for small UI features
> <http://discussions.apple.com/thread.jspa?messageID=11449395>. It may be a
> bug on Apple's end that the more powerful graphics card always gets invoked
> when CA is used (I have sent feedback to Apple regarding this), and maybe
> they will fix it for cases where the discrete card isn't really needed like
> in Skim's case, but maybe they won't.
> To get to my point, I don't know much about creating GUIs and using CA in OS
> X, but I wonder 1) if it is really necessary for Skim to display the search
> pane transition using CA, and 2) if it is possible to make using CA
> transitions an option. I'm not being angry here, by the way. If it is
> imperative for Skim to use CA for the transition and making CA transitions
> optional is not a possibility, that's fine, I just want to know.
> Thanks for developing such a great PDF reader/annotater. I hope to keep
> using it while running on my laptop's battery!
> Best,
> Matt
>
> First of all, if there's a problem, it's completely Apple's, they decide
> which hardware to use, especially for CA. Skim does not have to use CA, but
> that's not not saying that it shouldn't use it.
> Anyway, I will add a hidden preference to switch off animations, you could
> try and build Skim from source (see the Wiki for details about building and
> about hidden prefs, the relevant key is SKDisableAnimations).
> Christiaan
>
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