iMac 2010 no backlight

[miticoandre]

Hello everyone, i have imac 2010 27 with nvidia gtx770m bios mod macOS big sur, but no backlight control, how can i do?

 

[Nguyen Duc Hieu]

Hello everyone, i have imac 2010 27 with nvidia gtx770m bios mod macOS big sur, but no backlight control, how can i do?

Make a manual control board.

 

[miticoandre]

thanks for the answer, I have an app in manual, but the fan at the maximum of the gpu and does not mark degrees as if it were not a sensor, how do I solve?

Make a manual control board.

 

[Nguyen Duc Hieu]

thanks for the answer, I have an app in manual, but the fan at the maximum of the gpu and does not mark degrees as if it were not a sensor, how do I solve?

Fan speed can be controlled with Mac Fan Control App.
By "manual control", I mean you have to add an extra LED control board, and adjust the board (by a screw driver) to get the screen brightness you want.