I think I understood what is happening: As I have two monitors, gksu is fading both of them. So there is a superposition of two semitransparent rectangles, one for the big screen and one for the small. The darker area is due to this superposition.
Notes: I'm using the NVIDEA card.
I think I understood what is happening:
As I have two monitors, gksu is fading both of them. So there is a superposition of two semitransparent rectangles, one for the big screen and one for the small. The darker area is due to this superposition.
Notes:
I'm using the NVIDEA card.