Do you have gnome-power-manager --sm-disable in your System->Preferences->Session ->Startup programs
And do you have a battery logo in your notification area, which you right click it has Preferences and Hibernation and or Sleep.
Try also going into preferences and adjusting the the brightness there.
Do you have gnome-power-manager --sm-disable in your System- >Preferences- >Session ->Startup programs
And do you have a battery logo in your notification area, which you right click it has Preferences and Hibernation and or Sleep.
Try also going into preferences and adjusting the the brightness there.