ubuntu下调节分辨率

sudo gedit /etc/X11/xorg.conf

Section "Device"
   Identifier    "Configured Video Device"
EndSection

Section "Monitor"
   Identifier    "Configured Monitor"
   Horizsync 30-81
   Vertrefresh 56-75
EndSection

Section "Screen"
   Identifier    "Default Screen"
   Monitor        "Configured Monitor"
   Device        "Configured Video Device"
   SubSection "Display"
   Modes "1280x1024" "1024x768" "1152x864"
   EndSubSection
EndSection