Problema com a entrada DVI

[Frenzy]

Ola a todos ! Td bom ? Comprei um monitor novo e liguei ele de forma digital (DVI), so que quando vai aparecer a tela de login, o monitor perde o sinal, fica dizendo "Verifique o cabo e bla bla..." Ele passa no grup, mostra ele carregando e tudo +, no win, funciona tranquilamente, gostaria da ajuda de vcs, para tentar solucionar esse problema !! Agradeço desde ja !!

[Frenzy]

Meu Xorg

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by failsafeDexconf, using
# values from the debconf database and some overrides to use vesa mode.
#
# You should use dexconf or another such tool for creating a "real" xorg.conf
# For example:
#   sudo dpkg-reconfigure -phigh xserver-xorg
Section "InputDevice"
   Identifier   "Generic Keyboard"
   Driver      "kbd"
   Option      "XkbRules"   "xorg"
   Option      "XkbModel"   "pc105"
   Option      "XkbLayout"   "us"
EndSection

Section "InputDevice"
   Identifier   "Configured Mouse"
   Driver      "mouse"
EndSection

Section "Device"
   Identifier   "Configured Video Device"
   Boardname   "nVidia Corporation GeForce 8400 GS"
   Busid      "PCI:1:0:0"
   Driver      "nvidia"
   Screen   0
   Vendorname   "NVIDIA"
   Option      "NoLogo"   "False"
   Option   "XAANoOffscreenPixmaps" "true"
   Option "Coolbits" "1"
   Option "RenderAccel" "true"
   Option "backingstore" "true"
   Option "AllowGLXWithComposite" "true"
EndSection

Section "Monitor"
    Identifier     "Generic Monitor"
    VendorName     "Samsung"
    ModelName      "Samsung SyncMaster 943BWX"
    HorizSync       30.0 - 81.0
    VertRefresh     56.0 - 60.0
    Gamma           1
    ModeLine       "640x480@60" 25.2 640 656 752 800 480 490 492 525 -hsync -vsync
    ModeLine       "640x480@72" 31.5 640 664 704 832 480 489 491 520 -hsync -vsync
    ModeLine       "640x480@75" 31.5 640 656 720 840 480 481 484 500 -hsync -vsync
    ModeLine       "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
    ModeLine       "800x600@72" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
    ModeLine       "800x600@75" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
    ModeLine       "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
    ModeLine       "832x624@75" 57.3 832 864 928 1152 624 625 628 667 -hsync -vsync
    ModeLine       "1024x768@75" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
    ModeLine       "1024x768@70" 75.0 1024 1048 1184 1328 768 771 777 806 -hsync -vsync
    ModeLine       "1024x768@60" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
    ModeLine       "1152x864@75" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync +vsync
    ModeLine       "1280x1024@75" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
    ModeLine       "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
    ModeLine       "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
    ModeLine       "1280x960@75" 129.9 1280 1368 1504 1728 960 961 964 1002 -hsync +vsync
    ModeLine       "1440x900@60" 122.6 1400 1488 1640 1880 1050 1051 1054 1087 -hsync +vsync
    ModeLine       "1600x1200@65" 175.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
    ModeLine       "1600x1200@60" 162.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
EndSection

Section "Screen"
   Identifier   "Default Screen"
   Device      "Configured Video Device"
   Monitor      "Configured Monitor"
   Defaultdepth   24
   SubSection "Display"
      Virtual     1440 900      
      Depth   24
      Modes      "1440x900" "1024x768" "800x600" "640x480"
      Option         "TVStandard" "PAL-M"
    Option         "TVOutFormat" "SVIDEO"
    Option         "TVOverScan" "1.0"
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT: 1440x900 +0+0, TV: 1024x768 +0+0; CRT: 1024x768 +0+0, TV: 1024x768 +0+0; CRT: 832x624 +0+0, TV: nvidia-auto-select +0+0; CRT: 800x600 +0+0, TV: nvidia-auto-select +0+0; CRT: 640x480 +0+0, TV: nvidia-auto-select +0+0"
   EndSubSection
EndSection

Section "ServerLayout"
   Identifier   "Default Layout"
  screen 0 "Default Screen" 0 0
EndSection
Section "Module"
   Load      "glx"
   #Load      "GLcore"
   #Load      "v4l"
EndSection

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

Section "ServerFlags"
EndSection