I installed Xubuntu 16.04 on my MacBook Pro 6,2 (mid 2010 model, so it's old!). I cannot get the brightness keys to work.
After searching for help, I knew to look in
/sys/class/backlight. In it, I found two directories
Here's what I discovered:
- The brightness keys on my keyboard would change the brightness values in
nv_backlight. However, these had no effect on the actual screen brightness.
- If I manually edit the brightness values in
gmux_backlight, then the screen brightness would adjust accordingly.
So this seems to suggest that I need to get the brightness keys to modify the values in
gmux instead of
nv. How should I do this?
(Also, many places suggested installing the Nvidia drivers. However, when I tried that (installing version 340.96) and restarted, I would boot to a blank screen. I had to re-install Xubuntu.)