Hi, I have installed ubuntu 9.10 on my laptop. In System-Display, the best resolution I allow me to use is 1280x700. But my laptop can support 1600x900. So how can i change it? I tried adding xrandr --newmode "1600x900_60.00" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync and in /etc/gdm/Init/Default But that does not help.