ubuntu 修改分辨率

buntu:/home/ksgimi# cvt 1280 960  60
# 1280x960 59.94 Hz (CVT 1.23M3) hsync: 59.70 kHz; pclk: 101.25 MHz
Modeline "1280x960_60.00"  101.25  1280 1360 1488 1696  960 963 967 996 -hsync +vsync
root@ksgimi-ubuntu:/home/ksgimi# xrandr --newmode "1280x960_60.00"  101.25  1280 1360 1488 1696  960 963 967 996 -hsync +vsync
root@ksgimi-ubuntu:/home/ksgimi# xrandr --addmode Virtual1  "1280x960_60.00"
root@ksgimi-ubuntu:/home/ksgimi# xrandr -s 1280x960_60.00