dual head

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 09)

Section "Module"                                                                                                    
    Load  "glx"                                                                                                     
    Load  "extmod"                                                                                                  
    Load  "xtrap"                                                                                                   
    Load  "dbe"                                                                                                     
    Load  "dri"                                                                                                     
    Load  "freetype"                                                                                                
EndSection                                                                                                          

Section "InputDevice"
        Identifier "Generic Keyboard"
        Driver     "kbd"             
        Option     "XkbRules"   "xorg"
        Option     "XkbModel"   "pc105"
        Option     "XkbLayout"  "us,ru(winkeys)"
        Option     "XkbOptions" "grp:ctrl_shift_toggle"
EndSection                                             

Section "InputDevice"
        Identifier "Configured Mouse"
        Driver     "mouse"           
EndSection                           

Section "Device"
        Identifier  "Configured Video Device"
        Driver      "intel"                  
        BusID       "PCI:0:2:0"              
        VendorName  "Intel Corporation"      
        BoardName   "Mobile 4 Series Chipset Integrated Graphics Controller"
        Option "MonitorLayout" "CRT,LFP"                                    
        Screen 0                                                            
EndSection                                                                  

Section "Device"
        Identifier  "External Video Device"
        Driver      "intel"                
        BusID       "PCI:0:2:0"            
        VendorName  "Intel Corporation"    
        BoardName   "Mobile 4 Series Chipset Integrated Graphics Controller"
        Option "MonitorLayout" "CRT,LFP"                                    
        Screen 1                                                            
EndSection                                                                  

Section "Monitor"
    Identifier  "Configured Monitor"
    Option      "DPMS" "true"       
    HorizSync   30-82               
    Vertrefresh 56-76               
    Modeline "1360x768@75" 111.93 1360 1392 1816 1848 768 782 792 807 -HSync +VSync
EndSection

Section "Monitor"
    Identifier  "External Monitor"
    Option      "DPMS" "true"
EndSection

Section "Screen"
        Identifier     "Default Screen"
        Monitor        "Configured Monitor"
        Device         "Configured Video Device"
        DefaultDepth    24

        SubSection     "Display"
            Depth       24
            Modes      "1366x768" "800x600" "640x480"
        EndSubSection
EndSection

Section "Screen"
        Identifier     "External Screen"
        Monitor        "External Monitor"
        Device         "External Video Device"
        DefaultDepth    24

        SubSection     "Display"
            Depth       24
            Modes      "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

Section "ServerLayout"
    Identifier  "Default Layout"
#    Option      "Xinerama" "true"
    Screen       0 "Default Screen"
    Screen       1 "External Screen" RightOf "Default Screen"
    InputDevice "Generic Keyboard"
    InputDevice "Configured Mouse"
EndSection

Section "DRI"
    Mode 0666
EndSection

(II) [drm] loaded kernel module for "i915" driver.
(II) [drm] DRM interface version 1.3
(II) [drm] DRM open master succeeded.
(II) intel(0): [drm] Using the DRM lock SAREA also for drawables.
(II) intel(0): [drm] framebuffer mapped by ddx driver
(II) intel(0): [drm] added 1 reserved context for kernel
(II) intel(0): X context handle = 0x1
(II) intel(0): [drm] installed DRM signal handler
(**) intel(0): Framebuffer compression disabled
(**) intel(0): Tiling enabled
(==) intel(0): VideoRam: 262144 KB
(II) intel(0): Attempting memory allocation with tiled buffers.

Backtrace:
0: /usr/bin/X(xf86SigHandler+0x7e) [0x80c91ce]
1: [0xb77fe400]
2: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb73826d6]
3: /usr/lib/xorg/modules/drivers//intel_drv.so(i830_allocate_2d_memory+0x184) [0xb7382964]
4: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb7377090]
5: /usr/lib/xorg/modules/drivers//intel_drv.so [0xb737c82d]
6: /usr/bin/X(AddScreen+0x1f7) [0x8073db7]
7: /usr/bin/X(InitOutput+0x236) [0x80aac26]
8: /usr/bin/X(main+0x2b1) [0x8074591]
9: /lib/i686/cmov/libc.so.6(__libc_start_main+0xe5) [0xb7574455]
10: /usr/bin/X(FontFileCompleteXLFD+0x21d) [0x8073a81]

Fatal server error:
Caught signal 11.  Server aborting