Fn key not working properly in Dell Inspiron 1420 with Ubuntu 8.04
In Dell 1420 Laptop, Fn + up arrow/down arrow increases or decreases the display brightness level step-by-step. One step for one pressing.
After I installed Ubuntu 8.04; I found that once I press the keys one time, the brightness level change by more than one step. Like 3 or 4 times a time. So, I am not possible to adjust the brightness satisfyingly.
Help me solve this problem.