Problems with ati driver on Tibook

[philo N]

hi,
i can to try 1024x768 mode, but i connot calculate modelines ....etc...

********************* this is my 
xorg.conf*****************************************
>
>   
> Section "ServerLayout"
>     Identifier     "X.org Configured"
>     Screen      0  "Screen0" 0 0
>     InputDevice    "Mouse0" "CorePointer"
>     InputDevice    "Keyboard0" "CoreKeyboard"
> EndSection
>
> Section "Files"
>     RgbPath      "/etc/X11/rgb"
>     ModulePath   "/usr/lib/xorg/modules"
>     FontPath     "/usr/share/fonts/X11/misc"
>     FontPath     "/usr/share/fonts/X11/cyrillic"
>     FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"
>     FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"
>     FontPath     "/usr/share/fonts/X11/Type1"
>     FontPath     "/usr/share/fonts/X11/100dpi"
>     FontPath     "/usr/share/fonts/X11/75dpi"
>     FontPath     "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
> EndSection
>
> Section "Module"
>     Load  "record"
>     Load  "xtrap"
>     Load  "dbe"
>     Load  "dri"
>     Load  "glx"
>     Load  "extmod"
>     Load  "GLcore"
> EndSection
>
> Section "InputDevice"
>     Identifier  "Keyboard0"
>     Driver      "kbd"
> EndSection
>
> Section "InputDevice"
>     Identifier  "Mouse0"
>     Driver      "mouse"
>     Option        "Protocol" "auto"
>     Option        "Device" "/dev/input/mice"
>     Option        "ZAxisMapping" "4 5 6 7"
> EndSection
>
> Section "Monitor"
>     Identifier   "Monitor0"
>     VendorName   "HITACHI"
>     ModelName    "CM769ET"
>     Option        "DPMS"
>     HorizSync    30-96
>     VertRefresh    50-150
>         #DisplaySize     304.8 228.6      # This will make 
> 96dpi at 1152x864  ??????
>     #ModeLine        "1152x864" 144.0 1152 1200 1344 1500 864 870 880 
> 960 ??? can help me
> EndSection
>
> Section "Device"
>         ### Available Driver options are:-
>         ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
>         ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
>         ### [arg]: arg optional
>         #Option     "probe_sparse"           # [<bool>]
>         #Option     "accel"                  # [<bool>]
>         #Option     "crt_display"            # [<bool>]
>         #Option     "composite_sync"         # [<bool>]
>         #Option     "hw_cursor"              # [<bool>]
>         #Option     "force_pci_mode"         # [<bool>]
>         #Option     "dma_mode"               # <str>
>         #Option     "agp_mode"               # <i>
>         #Option     "agp_size"               # <i>
>         #Option     "local_textures"         # [<bool>]
>         #Option     "buffer_size"            # <i>
>         #Option     "mmio_cache"             # [<bool>]
>         #Option     "test_mmio_cache"        # [<bool>]
>         #Option     "panel_display"          # [<bool>]
>         #Option     "reference_clock"        # <freq>
>         #Option     "shadow_fb"              # [<bool>]
>         #Option     "sw_cursor"              # [<bool>]
>         #Option     "AccelMethod"            # <str>
>         #Option     "RenderAccel"            # [<bool>]
>     Identifier  "Card0"
>     Driver      "mach64"
>     VendorName  "ATI Technologies Inc"
>     BoardName   "3D Rage Pro PCI"
>     BusID       "PCI:1:2:0"
> EndSection
>
> Section "Screen"
>     Identifier "Screen0"
>     Device     "Card0"
>     Monitor    "Monitor0"
>     DefaultDepth 24
>     SubSection "Display"
>         Depth        1
>         Modes        "1152x864" "1024x768" "800x600" "640x480"
>     EndSubSection
>     SubSection "Display"
>         Depth        4
>         Modes        "1152x864" "1024x768" "800x600" "640x480"
>     EndSubSection
>     SubSection "Display"
>         Depth        8
>         Modes        "1152x864" "1024x768" "800x600" "640x480"
>     EndSubSection
>     SubSection "Display"
>         Depth        15
>         Modes        "1152x864" "1024x768" "800x600" "640x480"
>     EndSubSection
>     SubSection "Display"
>         Depth        16
>         Modes        "1152x864" "1024x768" "800x600" "640x480"
>     EndSubSection
>     SubSection "Display"
>         Depth        24
>         Modes        "1024x768" "800x600" "640x480"
>     EndSubSection
> EndSection
>
****************************************************************

regards
philo