If this doesnt work, then maybe try the 500 series driver like the GT 555m and see if you can get that to work, however going with prior series drivers you can run into other problems as well as lack of support for certain features that the 650m has that the prior series GPUs lacked such as shaders etc. If 378.66 works then you can update the driver until you find which specific one breaks this and then open a ticket with nVidia to check into it, or just stick with older driver that works and just remember to save a copy of this driver someplace safe in case you ever need it again in future and Nvidia no longer has it available. NVidia has drivers here going back to Feb release of this year for the GT 650m GPU, have you tried the oldest here to see if you get the functionality back.

So what I'm wondering is, is there a way to get Nvidia's older drivers so I can find the latest working driver that doesn't break the brightness setting?Īny suggestions and or help would GREATLY be appreciated.

The last time I ran windows flawlessly on this with updated graphics was back in December. However now, when I update the driver, it kills the ability to change brightness, both using the bootcamp utility, and even the one windows has built in! Since I have a beefier older MacBook Pro I always update the GPU drivers as I'm running a 1gb Nvidia Geforce GT 650M. When you install windows on a Mac, you bring in apples bootcamp drivers which allow you to control the brightness and volume and right click on a trackpad with one click etc. I have tried this on windows 7 pro, 8.1 pro and windows 10 pro to all duplicate the exact same issue. I'm having a rather annoying driver issue with Nvidia and would like some assistance in getting it fixed or perhaps a by pass! Please bear with me as this is technically a Bootcamp MacBook Pro I'm working on, but it is a Nvidia driver issue.

Nvidia bootcamp drivers windows 10