I have a Macbook Pro mid 2012 with Nvidia GT 650M, bootcamp with Windows 10 64 bits version 1709. As soon as a Nvidia driver is installed brightness control does not work and I'm stuck on max brightness. Can Apple please fix this as my model is officially supported? Is there a fix I can apply manually? Thank you and best regards,
John
MacBook Pro, Windows 10
I've got an answer. Brace yourself.
I'll start by saying that I have the same specs as you, and the same problem. I tried everything short of uninstalling Windows 10 and trying a fresh partition. Only one thing has worked for me consistently, and it's a pain. If you boot into your Mac partition and open "Bootcamp Assistant," there's an option in a menubar to "Download Windows Support Software." Once you've got the folder, load it onto an external disk and boot up Windows. You'll have to install the software by opening the "Setup.exe" file within one of the folders. It will solve the problem temporarily, but I've been having my Windows brightness control reset every boot. So each time I switch from PC to Mac and then back, it's the same process of running the repair.
I've got an answer. Brace yourself.
I'll start by saying that I have the same specs as you, and the same problem. I tried everything short of uninstalling Windows 10 and trying a fresh partition. Only one thing has worked for me consistently, and it's a pain. If you boot into your Mac partition and open "Bootcamp Assistant," there's an option in a menubar to "Download Windows Support Software." Once you've got the folder, load it onto an external disk and boot up Windows. You'll have to install the software by opening the "Setup.exe" file within one of the folders. It will solve the problem temporarily, but I've been having my Windows brightness control reset every boot. So each time I switch from PC to Mac and then back, it's the same process of running the repair.
Hi guys, here i found the solution!
I've searched around and i found this 2013's webpage, i have followed the registry guide from there and it worked perfectly! hope this also works for you!
here following the link:
http://nikramakrishnan.blogspot.it/2013/03/nvidia-graphics-card-display-brightne ss.html
best regards
Thank you very much! To recap:
Apply registry fix here
http://nikramakrishnan.blogspot.it/2013/03/nvidia-graphics-card-display-brightne ss.html
The step where you should enter "0x800", type only "800" (in hexadecimal, it will add the "0x")
Make sure adaptive brightness is disabled in the advanced power settings.
Problem solved!
Hi guys, here i found the solution!
I've searched around and i found this 2013's webpage, i have followed the registry guide from there and it worked perfectly! hope this also works for you!
here following the link:
http://nikramakrishnan.blogspot.it/2013/03/nvidia-graphics-card-display-brightne ss.html
Hi Schmitozen, for me applying the registry above i can go from 0% to 100% without issues (trust me at 100% is very bright!!!).I don't know if it helps you but i have also installed the latest Nvidia drivers from the website for our Nvidia 650M and disabled the adaptive brightness in power control panel in windows 10.
Check screenshots below:
Best regards
Goodmorning, i have the same macbook pro (mid 2012 2.3 ghz) and like you, i have the same problem with windows 10 1709 and nvidia proprietary drivers that disable the brightness controls.
I hope that apple (or microsoft) will do something in this regards
note that I also tried the newest drivers available from nvidia website for our GFX card (instead of the one that windows automatically install) but without success.
Best regards
Hi stefano_85. First, thank you very much for this help. You're the first person to actually get me closer to a solution.
I applied it, and it restored some brightness control. But the max brightness was about 30-40%, which made my screen too dark. I don't dare modify the registry without understanding what I'm doing. How could I maybe change the values in the registry to improve on this?
Thanks again!
Hi dogimistic, this solution only disables temporarily the proprietary driver, which lets the brightness control work only until windows activates an Nvidia driver within minutes. I prefer to have my screen always at max brightness, but with the full power of the graphics driver. Stefano_85 has a solution that improves the situation, but in my case halves the maximum brightness.
Nvidia GT 650M on Windows 10 64 bits Brightness Control not working
