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I installed elementary os Loki on my MacBook Pro which has Nvidia graphics card.
With a fresh installation I can change the brightness with the brightness keys from keyboard. But if I install the Nvidia drivers then the brightness is not changing even if I change it from the power settings.
How to solve this?
I tried the solution given in Loki - MBPr 15 - Screen Brightness doesn't work it does not works for me.
I have MacBook Pro 13 Inch 2009 model.
Note : I tried updating the graphics driver to the latest one but all I got was a blank screen after reboot.