xavier@Xavier:~$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09)

xavier@Xavier:~$ grep MemTotal /proc/meminfo
MemTotal:        4063044 kB

xavier@Xavier:~$ lscpu | grep "MHz"
CPU MHz:               1000.000

$ sudo gedit /etc/X11/xorg.conf

Section "Monitor"
    Identifier  "Samsung SyncMaster 171N"
    Modeline    "1280x1024_60.09"  109.25  1280 1368 1496 1712  1024 1027 1034 1063 -hsync +vsync
    Option      "PreferredMode" "1280x1024_60.09"
EndSection

Section "Device"
    Identifier  "Intel"
    Driver      "intel"
EndSection

Section "Screen"
    Identifier "Default Screen"
    Monitor     "Samsung SyncMaster 171N"
    Device      "Intel"
    Defaultdepth 24
    SubSection  "Display"
        Modes   "1280x1024_60.09"
    EndSubSection
EndSection

Section "ServerLayout"
    Identifier  "Default Layout"
    Screen      "Default Screen"
EndSection