Comment 8 for bug 555122

I just finished upgrading from Koala to Lynx. With koala the brightness was so bright that I needed to turn it down. With Lynx the brightness is very dim. The Fn keys and power management brightness controls are not working properly now. Let me describe the unusual effect.

With the Fn key at the maximum it is very dim. When I use the Fn dimmer is becomes slightly brighter then it begins to dim once again. Similar behavior occurs with the power management slider as described below.

With the power management slider, it starts off dim at 100% and becomes darker as I approach 93%.
Between 93% and 79% it is black.
79% is actually brighter than 100%.
From 79% to 40% it dims as normal.
From 40% to 32% it is black.
At 32% it is once again the same as 78% again (which is brighter than 100%).
From 32% down to 0% the dimmer works again as normal.

This is very odd behavior.