People, I finally found a real workaround.
using the official nvidia driver, I installed the package nvidia-bl-dkms from the Mactel PPA (https://launchpad.net/~mactel-support/+archive/ppa)
Now I can control the backlight perfectly. Not even with the noveau driver I could control it with this much precision.
Just to remember, I´m using the nVidia Corporation GT218 [GeForce 310M] (rev a2) on a Sony Vaio VPCCW21FX.
People, I finally found a real workaround.
using the official nvidia driver, I installed the package nvidia-bl-dkms from the Mactel PPA (https:/ /launchpad. net/~mactel- support/ +archive/ ppa)
Now I can control the backlight perfectly. Not even with the noveau driver I could control it with this much precision.
Just to remember, I´m using the nVidia Corporation GT218 [GeForce 310M] (rev a2) on a Sony Vaio VPCCW21FX.