Nvidia optimus - Как настроить xserver на двойной экран? [закрыто]

У меня есть ноутбук с технологией nvidia optimus. Я установил шмель, и все, кажется, работает нормально. Проблема в том, что когда я подключил второй монитор к ноутбуку после входа в систему, он работает хорошо, но когда я запускаю ноутбук с подключенным монитором, Xserver не может запуститься. Как настроить xserver, чтобы он работал?

Это моя конфигурация оборудования:

$ xrandr -q
Screen 0: minimum 320 x 200, current 3040 x 900, maximum 8192 x 8192
LVDS1 connected 1600x900+1440+0 (normal left inverted right x axis y axis) 382mm x 214mm
   1600x900       60.0*+
   1440x900       59.9 
   1360x768       59.8     60.0 
   1152x864       60.0 
   1024x768       60.0 
   800x600        60.3     56.2 
   640x480        59.9 
VGA2 connected 1440x900+0+0 (normal left inverted right x axis y axis) 410mm x 256mm
   1440x900       59.9*+
   1280x1024      75.0     60.0 
   1152x864       75.0 
   1280x720       75.0     60.0 
   1024x768       75.1     70.1     60.0 
   832x624        74.6 
   800x600        72.2     75.0     60.3     56.2 
   640x480        72.8     75.0     66.7     60.0 
   720x400        70.1 
HDMI1 disconnected (normal left inverted right x axis y axis)
DP1 disconnected (normal left inverted right x axis y axis)

edit: Вот мой Horg.log

 [    15.921] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Jan  7 23:00:34 2012
[    15.921] (==) Using config file: "/etc/X11/xorg.conf"
[    15.921] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    15.921] (==) No Layout section.  Using the first Screen section.
[    15.921] (==) No screen section available. Using defaults.
[    15.921] (**) |-->Screen "Default Screen Section" (0)
[    15.921] (**) |   |-->Monitor "<default monitor>"
[    15.921] (==) No device specified for screen "Default Screen Section".
    Using the first device section listed.
[    15.921] (**) |   |-->Device "Default Device"
[    15.921] (==) No monitor specified for screen "Default Screen Section".
    Using a default monitor configuration.
[    15.921] (==) Automatically adding devices
[    15.921] (==) Automatically enabling devices
[    15.921] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[    15.921]    Entry deleted from font path.
[    15.921] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[    15.921]    Entry deleted from font path.
[    15.921] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[    15.921]    Entry deleted from font path.
[    15.921] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[    15.921]    Entry deleted from font path.
[    15.921] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[    15.921]    Entry deleted from font path.
[    15.921] (==) FontPath set to:
    /usr/share/fonts/X11/misc,
    /usr/share/fonts/X11/Type1,
    /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
    built-ins
[    15.921] (==) ModulePath set to "/usr/lib/x86_64-linux-gnu/xorg/extra-modules,/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
[    15.921] (II) The server relies on udev to provide the list of input devices.
    If no devices become available, reconfigure udev or disable AutoAddDevices.
[    15.921] (II) Loader magic: 0x7e0220
[    15.921] (II) Module ABI versions:
[    15.921]    X.Org ANSI C Emulation: 0.4
[    15.921]    X.Org Video Driver: 10.0
[    15.921]    X.Org XInput driver : 12.3
[    15.921]    X.Org Server Extension : 5.0

Мой xorg. conf почти пуст:

Section "Device"
    Identifier  "Default Device"
    Option  "NoLogo"    "True"
EndSection

Как настроить Xorg, чтобы он работал?