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  1. #1
    Changes made in Safe Boot (automatic graphics switching)

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    Jun 29, 2013
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    Changes made in Safe Boot (automatic graphics switching)
    I am trying to disable Automatic graphics switching pre-boot. That way I would not have to make the change within Mac OS, I currently have a hardware issue that im working around. My main question is can I make change sin safe boot and have them apply to normal boot or is there a way to literally make the normal boot almost identical to safe boot, specifically preference settings and startup items?

    Thanks for any help.

  2. #2
    Changes made in Safe Boot (automatic graphics switching)
    chscag's Avatar
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    Welcome to the Mac Forums.

    Download and install the free "gfxCardStatus" utility which will allow you to lock the graphics to either give you more power or better battery life. Download LINK

  3. #3
    Changes made in Safe Boot (automatic graphics switching)

    Member Since
    Jun 29, 2013
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    Ok I think what I need to do is change values with pmset in Terminal. Specifically related to gpuswitch, I want it to only use NVidia GPU instead of Intel and I do not want to have to change this within the OS or have a program do it for me.

  4. #4
    Changes made in Safe Boot (automatic graphics switching)
    chscag's Avatar
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    Well, you can give what you want to do a try, but the program I suggested to you makes the change on a low level hardware basis. In other words, it accomplishes the same thing. Anyway, since it's free, what have you got to lose by trying it?

  5. #5
    Changes made in Safe Boot (automatic graphics switching)

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    Jun 29, 2013
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    Thanks yeah I posted real quick before I saw your last post and I should have mentioned in my original post that I had already downloaded gfxCardStatus. My MBP shutsdown instantly when I attempt to use either discrete or intel via the program. In safe boot it runs as discrete and everything works fine, all of my programs that would cause the system to crash operate as they should. It seems that once that "switch" happens is where my issue is. The permanent solution is a logic board replacement or fix (which would involve reballing GPU and possibly reflowing other components at the least) but I would like to work around that for now.

  6. #6
    Changes made in Safe Boot (automatic graphics switching)
    chscag's Avatar
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    The permanent solution is a logic board replacement or fix (which would involve reballing GPU and possibly reflowing other components at the least) but I would like to work around that for now.
    Yeah, that's going to be an expensive fix. You can give the reflow a try but others who have been successful at a reflow said that it wound up being a temporary fix. I would try to find a logic board either on eBay or maybe from someone who has a broken machine that they would let go very cheap. Of course it should have a good working logic board.

  7. #7
    Changes made in Safe Boot (automatic graphics switching)

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    Jun 29, 2013
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    I have tried to set it in safe mode with the gfxCardStatus and have it boot on startup. Gfx boots on startup but it doesnt use the settings I had in safeboot, discrete only. It always switches back to dynamic switching and starts with the Intel graphics. Any other ideas? Also im not too familiar with terminal commands would you happen to know what the values mean.

    For example when I do pmset -g disk I get a value of 1 for gpuswitch on battery and 0 for ac adapter.
    How would I change those values myself and what do they all mean?

  8. #8
    Changes made in Safe Boot (automatic graphics switching)
    chscag's Avatar
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    Sorry, I'm not very good at terminal commands but we have a few folks who are expert at it. Hopefully they'll see this thread and respond. But since today is Saturday most folks are up and about doing things. As a matter of fact, my wife is already giving me the two minute warning about taking her shopping.

  9. #9
    Changes made in Safe Boot (automatic graphics switching)

    Member Since
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    Quote Originally Posted by chscag View Post
    Yeah, that's going to be an expensive fix. You can give the reflow a try but others who have been successful at a reflow said that it wound up being a temporary fix. I would try to find a logic board either on eBay or maybe from someone who has a broken machine that they would let go very cheap. Of course it should have a good working logic board.
    Yeah I repair a lot of motherboards, PC, Mac, Game consoles, etc. and I have my own SMD rework station but I would prefer to use just the nvidia drivers anyway and have the performance increase I dont care about battery life or energy saving in this scenario. Mine is just over 3 years so Apple wont replace it for free like they have with similar models, I may be able to complain enough to get them too but Im not that kinda guy and it wastes too much energy ill just rework it myself if I have to i the end and take it from there.

  10. #10
    Changes made in Safe Boot (automatic graphics switching)

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    Quote Originally Posted by chscag View Post
    Sorry, I'm not very good at terminal commands but we have a few folks who are expert at it. Hopefully they'll see this thread and respond. But since today is Saturday most folks are up and about doing things. As a matter of fact, my wife is already giving me the two minute warning about taking her shopping.
    Haha sorry to hear that! Have fun.

  11. #11
    Changes made in Safe Boot (automatic graphics switching)
    Slydude's Avatar
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    Quote Originally Posted by chscag View Post
    As a matter of fact, my wife is already giving me the two minute warning about taking her shopping.
    Since you have been given the two minute warning invoke normal NFL procedures With a few false starts (almost getting out the door, etc) and incompletions (oops forgot something) and similar tactics you could probably delay things till sometime tomorrow. Or at least till the stores close.

    Of course if you follow this advice you might be sleeping on the couch for a long time.
    Sylvester Roque Former Contributing Editor About This Particular Macintosh

    "Got Time to breathe. You got time for music." Denver Pyle as Briscoe Darling

  12. #12
    Changes made in Safe Boot (automatic graphics switching)

    Member Since
    Jun 29, 2013
    Posts
    7
    Besides gfx anyone know of a script I could set to run on startup to disable the Automatic Graphics Switching function of energy saver? Or is there another way to disable this preboot? As long as I can get it disabled somehow before the OS loads ill be fine.

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