Ubuntu 12.04 startet nicht mehr

[   290.880] 
X.Org X Server 1.11.3
Release Date: 2011-12-16
[   290.884] X Protocol Version 11, Revision 0
[   290.886] Build Operating System: Linux 2.6.42-26-generic i686 Ubuntu
[   290.888] Current Operating System: Linux saphir-TravelMate-5742G 3.2.0-29-generic-pae #46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686
[   290.888] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic-pae root=UUID=7b2fca47-6f85-4e3f-82db-9e245aafb120 ro quiet splash vt.handoff=7
[   290.892] Build Date: 04 August 2012  01:51:24AM
[   290.894] xorg-server 2:1.11.4-0ubuntu10.7 (For technical support please see http://www.ubuntu.com/support) 
[   290.894] Current version of pixman: 0.24.4
[   290.896] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[   290.896] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   290.899] (==) Log file: "/var/log/Xorg.0.log", Time: Tue Aug 21 19:45:45 2012
[   290.900] (==) Using config file: "/etc/X11/xorg.conf"
[   290.901] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   290.901] (==) No Layout section.  Using the first Screen section.
[   290.901] (**) |-->Screen "Default Screen" (0)
[   290.901] (**) |   |-->Monitor "Configured Monitor"
[   290.901] (**) |   |-->Device "Configured Video Device"
[   290.901] (==) Automatically adding devices
[   290.901] (==) Automatically enabling devices
[   290.901] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist.
[   290.901] 	Entry deleted from font path.
[   290.901] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist.
[   290.901] 	Entry deleted from font path.
[   290.901] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist.
[   290.901] 	Entry deleted from font path.
[   290.901] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist.
[   290.901] 	Entry deleted from font path.
[   290.901] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist.
[   290.901] 	Entry deleted from font path.
[   290.901] (==) FontPath set to:
	/usr/share/fonts/X11/misc,
	/usr/share/fonts/X11/Type1,
	/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType,
	built-ins
[   290.901] (==) ModulePath set to "/usr/lib/i386-linux-gnu/xorg/extra-modules,/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules"
[   290.901] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[   290.901] (II) Loader magic: 0xb77855a0
[   290.901] (II) Module ABI versions:
[   290.901] 	X.Org ANSI C Emulation: 0.4
[   290.901] 	X.Org Video Driver: 11.0
[   290.901] 	X.Org XInput driver : 16.0
[   290.901] 	X.Org Server Extension : 6.0
[   290.902] (--) PCI:*(0:1:0:0) 10de:0df4:1025:0487 rev 161, Mem @ 0xb2000000/16777216, 0xa0000000/268435456, 0xb0000000/33554432, I/O @ 0x00003000/128, BIOS @ 0x????????/524288
[   290.902] (II) Open ACPI successful (/var/run/acpid.socket)
[   290.902] (II) LoadModule: "extmod"
[   290.902] (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so
[   290.902] (II) Module extmod: vendor="X.Org Foundation"
[   290.902] 	compiled for 1.11.3, module version = 1.0.0
[   290.902] 	Module class: X.Org Server Extension
[   290.902] 	ABI class: X.Org Server Extension, version 6.0
[   290.902] (II) Loading extension MIT-SCREEN-SAVER
[   290.902] (II) Loading extension XFree86-VidModeExtension
[   290.902] (II) Loading extension XFree86-DGA
[   290.902] (II) Loading extension DPMS
[   290.902] (II) Loading extension XVideo
[   290.902] (II) Loading extension XVideo-MotionCompensation
[   290.902] (II) Loading extension X-Resource
[   290.902] (II) LoadModule: "dbe"
[   290.903] (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so
[   290.903] (II) Module dbe: vendor="X.Org Foundation"
[   290.903] 	compiled for 1.11.3, module version = 1.0.0
[   290.903] 	Module class: X.Org Server Extension
[   290.903] 	ABI class: X.Org Server Extension, version 6.0
[   290.903] (II) Loading extension DOUBLE-BUFFER
[   290.903] (II) LoadModule: "glx"
[   290.903] (II) Loading /usr/lib/i386-linux-gnu/xorg/extra-modules/libglx.so
[   290.912] (II) Module glx: vendor="NVIDIA Corporation"
[   290.912] 	compiled for 4.0.2, module version = 1.0.0
[   290.912] 	Module class: X.Org Server Extension
[   290.912] (II) NVIDIA GLX Module  173.14.35  Thu May 31 12:34:02 PDT 2012
[   290.912] (II) Loading extension GLX
[   290.912] (II) LoadModule: "record"
[   290.912] (II) Loading /usr/lib/xorg/modules/extensions/librecord.so
[   290.912] (II) Module record: vendor="X.Org Foundation"
[   290.912] 	compiled for 1.11.3, module version = 1.13.0
[   290.912] 	Module class: X.Org Server Extension
[   290.912] 	ABI class: X.Org Server Extension, version 6.0
[   290.912] (II) Loading extension RECORD
[   290.912] (II) LoadModule: "dri"
[   290.913] (II) Loading /usr/lib/xorg/modules/extensions/libdri.so
[   290.913] (II) Module dri: vendor="X.Org Foundation"
[   290.913] 	compiled for 1.11.3, module version = 1.0.0
[   290.913] 	ABI class: X.Org Server Extension, version 6.0
[   290.913] (II) Loading extension XFree86-DRI
[   290.913] (II) LoadModule: "dri2"
[   290.913] (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so
[   290.913] (II) Module dri2: vendor="X.Org Foundation"
[   290.913] 	compiled for 1.11.3, module version = 1.2.0
[   290.913] 	ABI class: X.Org Server Extension, version 6.0
[   290.913] (II) Loading extension DRI2
[   290.913] (II) LoadModule: "vesa"
[   290.913] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[   290.913] (II) Module vesa: vendor="X.Org Foundation"
[   290.913] 	compiled for 1.11.3, module version = 2.3.0
[   290.913] 	Module class: X.Org Video Driver
[   290.913] 	ABI class: X.Org Video Driver, version 11.0
[   290.913] (II) VESA: driver for VESA chipsets: vesa
[   290.913] (--) using VT number 7

[   290.915] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[   290.915] vesa: Ignoring device with a bound kernel driver
[   290.915] (WW) Falling back to old probe method for vesa
[   290.915] (II) UnloadModule: "vesa"
[   290.915] (II) Unloading vesa
[   290.915] (EE) Screen(s) found, but none have a usable configuration.
[   290.915] 
Fatal server error:
[   290.915] no screens found
[   290.915] 
Please consult the The X.Org Foundation support 
	 at http://wiki.x.org
 for help. 
[   290.915] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[   290.915] 
[   290.922]  ddxSigGiveUp: Closing log
[   290.923] Server terminated with error (1). Closing log file.