(WW) The directory "/usr/share/fonts/Speedo/" does not exist.
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
(WW) fglrx: No matching Device section for instance (BusID PCI:5:0:1) found
(WW) fglrx(0): Option "(null)" is not used
(WW) fglrx(0): Option "PowerState" is not used
(WW) fglrx(0): Option "XAANoOffscreenPixmaps" is not used
(II) Loading extension MIT-SCREEN-SAVER
(EE) AIGLX error: dlsym for __driCreateNewScreen_20050727 failed (/usr/lib/dri/fglrx_dri.so: undefined symbol: __driCreateNewScreen_20050727)
(EE) AIGLX: reverting to software rendering
(EE) Error loading keymap /usr/share/X11/xkb/compiled/server-0.xkm

And this is my xorg.conf

Section "ServerLayout"
	Identifier     "Server Layout"
	Screen         "Screen0" 0 0
	InputDevice    "Mouse1" "CorePointer"
	InputDevice    "Keyboard1" "CoreKeyboard"
	Option         "AIGLX" "true"
EndSection

Section "Files"
	FontPath     "/usr/share/fonts/misc/"
	FontPath     "/usr/share/fonts/75dpi/:unscaled"
	FontPath     "/usr/share/fonts/100dpi/:unscaled"
	FontPath     "/usr/share/fonts/Type1/"
	FontPath     "/usr/share/fonts/Speedo/"
	FontPath     "/usr/share/fonts/75dpi/"
	FontPath     "/usr/share/fonts/100dpi/"
EndSection

Section "Module"
	Load  "dbe"  	# Double buffer extension
	Load  "extmod"
	Load  "type1"
	Load  "freetype"
	Load  "glx"   # libglx.a
	Load  "dri"   # libdri.a
EndSection

Section "InputDevice"
	Identifier  "Keyboard1"
	Driver      "kbd"
	Option	    "AutoRepeat" "500 30"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "de"
	Option	    "XkbVariant" "nodeadkeys"
EndSection

#Section "Extensions"
#             Option         "Composite"   "Enable"
#EndSection

Section "InputDevice"
	Identifier  "Mouse1"
	Driver      "mouse"
	Option	    "Protocol" "ExplorerPS/2"
	Option	    "Device" "/dev/input/mice"
	Option	    "Buttons" "9"
	Option	    "ZAxismapping" "8 9"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	HorizSync    30.0 - 98.0
	VertRefresh  50.0 - 160.0
	Option	    "DPMS"
EndSection

Section "Device"
	Identifier  "ATI Graphics Adapter"
	Driver      "fglrx"
	Option	    "(null)"
	Option	    "PowerState" "3"
	Option	    "OverlayOnCRTC2" "1"
	Option	    "VideoOverlay" "on"
	Option	    "OpenGLOverlay" "off"
	Option	"UseInternalAGPGART" "no"
	Option      "XAANoOffscreenPixmaps" "true"
	Option      "DRI"     "true"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "ATI Graphics Adapter"
	Monitor    "Monitor0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

Section "DRI"
	Group 0
	Mode         0666
EndSection