i810: unable to set refresh rate higher than 85Hz

[Xspooky at gmx.at]

Hello,
I'm using a Acer Notebook with the following video card:
Intel Corp. 82852/855GM Integrated Graphics Device (rev 02)
as XServer I use xorg ver 6.7.0-r2.

Now I wonna use an external monitor (lg flatron 915ft+) with a resolution of
1280x1024.
The problem is, I only get a frequency refresh rate of 85Hz. 
The monitor is able to work with 100Hz, but I can't tell xorg to set a
higher rate than 85Hz.

best regards,
robert

xorg.conf

#Section "InputDevice"
#	Identifier  "Serial Mouse"
#	Driver      "mouse"
#	Option	    "Protocol" "Microsoft"
#	Option	    "Device" "/dev/ttyS0"
#	Option	    "Emulate3Buttons" "true"
#	Option	    "Emulate3Timeout" "70"
#	Option	    "SendCoreEvents" "true"
#EndSection
#Section "InputDevice"
#	Identifier  "USB Mouse"
#	Driver      "mouse"
#	Option	    "Device" "/dev/input/mice"
#	Option	    "SendCoreEvents" "true"
#	Option	    "Protocol" "IMPS/2"
#	Option	    "ZAxisMapping" "4 5"
#	Option	    "Buttons" "5"
#EndSection

Section "ServerLayout"

# Serial Mouse not detected
# USB Mouse not detected
 #"CorePointer"
 #added
	Identifier     "XFree86 Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
	InputDevice    "PS/2 Mouse" "AlwaysCore"
	InputDevice    "Touchpad" "CorePointer"
EndSection

Section "Files"
	RgbPath      "/usr/X11R6/lib/X11/rgb"
	FontPath     "/usr/X11R6/lib/X11/fonts/local/"
	FontPath     "/usr/X11R6/lib/X11/fonts/misc/"
	FontPath     "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
	FontPath     "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
	FontPath     "/usr/X11R6/lib/X11/fonts/Speedo/"
	FontPath     "/usr/X11R6/lib/X11/fonts/Type1/"
	FontPath     "/usr/X11R6/lib/X11/fonts/75dpi/"
	FontPath     "/usr/X11R6/lib/X11/fonts/100dpi/"
EndSection

Section "Module"
	Load  "ddc"  # ddc probing of monitor
	Load  "GLcore"
	Load  "dbe"
	Load  "dri"
	Load  "extmod"
	Load  "glx"
	Load  "bitmap" # bitmap-fonts
	Load  "speedo"
	Load  "type1"
	Load  "freetype"
	Load  "record"
	Load  "synaptics"  # added for touchpad
EndSection

Section "ServerFlags"
	Option	    "AllowMouseOpenFail" "true"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "keyboard"
	Option	    "CoreKeyboard"
	Option	    "XkbRules" "xfree86"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "de"
EndSection

Section "InputDevice"
  #added
	Identifier  "Touchpad"
	Driver      "synaptics"
	Option	    "Protocol" "IMPS/2" #"auto-dev"
	Option	    "Device" "/dev/psaux"
EndSection

Section "InputDevice"
#	Option	    "Emulate3Buttons" "true"
#	Option	    "Emulate3Timeout" "70"
#	Option	    "SendCoreEvents" "true"
	Identifier  "PS/2 Mouse"
	Driver      "mouse"
	Option	    "Protocol" "IMPS/2" #"auto"
	Option	    "ZAxisMapping" "4 5"
	Option	    "Device" "/dev/psaux" #/dev/psaux
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "LG"
	ModelName    "915FT+"
	HorizSync    30 - 110 
	VertRefresh  50 - 200
	Option	     "DPMS" 
EndSection

Section "Device"
	Identifier  "Intel i810"
	Driver      "i810"
	BusID	    "PCI:0:2:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Intel i810"
	Monitor    "Monitor0"
   	DefaultDepth     24
	
	SubSection "Display"
		Viewport 0 0
		Depth     24
		Modes    "1280x1024" 
	EndSubSection

	SubSection "Display"
		Viewport 0 0
		Depth     16
		Modes    "1280x1025"
	EndSubSection
EndSection

Section "DRI"
	Mode         0666
EndSection

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-- 
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