About two updates ago, everything with brightness was working perfect!
But since then, the Function keys for brightness(Fn + up and Fn + down) are not working... I mean the brightness reduces only till 1 step using the keys and after that its locked.
Also, when I go to the brightness settings and reduce the brightness, this is what happens:
- The brightness is reduced. I close the settings.
- When I start brightness settings again, the brightness is at the set level BUT the arrow on the scroller/scale is at full!
- I click anywhere on the scale, the brightness suddenly increases to full and then starts reducing.
Also the brightness level is not remembered after restarting from Hibernation and/or suspend. What is wrong all of a sudden? I am using Ubuntu 12.04 LTS with Unity 3D on Samsung NP-RV 509
And I have Samsung slow down manager and Samsung tools installed. (They make the function keys and stuff work on Samsung hardware properly. It is similar to the software provided by Samsung for windows.)