Niemożliwa zmiana rozdzielczości

[Isilbad]

Mój system to Debian etch. Po włączeniu komputera mam ustawioną rozdzielczość 640x480 i jest to jedyna rozdzielczość jaką system umożliwia mi wybrać (wcześniej wszystko było w porządku i nie wprowadzałem żadnych zmian, które mogły "coś" popsuć).
Plik xorg.conf wydaje się być ok. Oto on:

# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
   FontPath   "/usr/share/fonts/X11/misc"
   FontPath   "/usr/X11R6/lib/X11/fonts/misc"
   FontPath   "/usr/share/fonts/X11/cyrillic"
   FontPath   "/usr/X11R6/lib/X11/fonts/cyrillic"
   FontPath   "/usr/share/fonts/X11/100dpi/:unscaled"
   FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
   FontPath   "/usr/share/fonts/X11/75dpi/:unscaled"
   FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
   FontPath   "/usr/share/fonts/X11/Type1"
   FontPath   "/usr/X11R6/lib/X11/fonts/Type1"
   FontPath   "/usr/share/fonts/X11/100dpi"
   FontPath   "/usr/X11R6/lib/X11/fonts/100dpi"
   FontPath   "/usr/share/fonts/X11/75dpi"
   FontPath   "/usr/X11R6/lib/X11/fonts/75dpi"
   # path to defoma fonts
   FontPath   "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
   Load   "i2c"
   Load   "bitmap"
   Load   "ddc"
   Load   "dri"
   Load   "extmod"
   Load   "freetype"
   Load   "glx"
   Load   "int10"
   Load   "vbe"
EndSection

Section "InputDevice"
   Identifier   "Generic Keyboard"
   Driver      "kbd"
   Option      "CoreKeyboard"
   Option      "XkbRules"   "xorg"
   Option      "XkbModel"   "pc105"
   Option      "XkbLayout"   "pl"
EndSection

Section "InputDevice"
   Identifier   "Configured Mouse"
   Driver      "mouse"
   Option      "CorePointer"
   Option      "Device"      "/dev/input/mice"
   Option      "Protocol"      "ImPS/2"
   Option      "Emulate3Buttons"   "true"
EndSection

Section "Device"
   Identifier   "nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x]"
   Driver      "nv"
   BusID      "PCI:1:0:0"
EndSection

Section "Monitor"
   Identifier   "F790D"
   Option      "DPMS"
EndSection

Section "Screen"
   Identifier   "Default Screen"
   Device      "nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x]"
   Monitor      "F790D"
   DefaultDepth   24
   SubSection "Display"
      Depth      1
      Modes      "1600x1200" "1280x1024" "1152x864" "1024x768" "800x600"

"640x480"
   EndSubSection
   SubSection "Display"
      Depth      4
      Modes      "1600x1200" "1280x1024" "1152x864" "1024x768" "800x600"

"640x480"
   EndSubSection
   SubSection "Display"
      Depth      8
      Modes      "1600x1200" "1280x1024" "1152x864" "1024x768" "800x600"

"640x480"
   EndSubSection
   SubSection "Display"
      Depth      15
      Modes      "1600x1200" "1280x1024" "1152x864" "1024x768" "800x600"

"640x480"
   EndSubSection
   SubSection "Display"
      Depth      16
      Modes      "1600x1200" "1280x1024" "1152x864" "1024x768" "800x600"

"640x480"
   EndSubSection
   SubSection "Display"
      Depth      24
      Modes      "1600x1200" "1280x1024" "1152x864" "1024x768" "800x600"

"640x480"
   EndSubSection
EndSection

Section "ServerLayout"
   Identifier   "Default Layout"
   Screen      "Default Screen"
   InputDevice   "Generic Keyboard"
   InputDevice   "Configured Mouse"
EndSection

Section "DRI"
   Mode   0666
EndSection


Jeśłi ktoś może mi pomóc rozwiązać problem, będę bardzo wdzięczny.

Pozdrawiam

[norbert_ramzes]

W Debianie jest fajny bajer do konfiguracji iXsa:

dpkg-reconfigure xserver-xorg

[chmooreck]

poczytaj logi X'ów (/var/log/Xorg.0.log)

[Isilbad]

dpkg-reconfigure xserver-xorg rozwiązało problem,
dzięki.

Pozdrawiam