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xorg.conf und Netzproblem

Ich bin vor ein paar Tagen auf ein seltsames Problem gestossen. Nach Veränderungen an xorg.conf, die vor allem Grafikkarte & Monitor betreffen habe ich keinen Netzzugang mehr. Mir verschliesst sich noch der Zusammenhang zwischen beiden Elementen; ich würde gern wissen, worauf ich bei Manipulationen an der xorg.conf achten muss um das Problem zukünftig zu vermeiden.


System:

* openSUSE 10.2 auf Acer Aspire 1602LC
* Netzzugang über TCP ins hiesige Campusnetz
* Konfiguration der Netzwerkkarte erfolgt über DHCP


Ablauf:

* Netz geht

~> init 3
~> sax2 -r -m 0=radeon
~> init 5

* Netz geht nicht mehr (kein DHCP etc.), Neustart hilft nix

~> init 3
~> mv xorg.conf.backup xorg.conf
~> init 5

* Netz geht nicht
* nach Neustart geht es wieder

[edit]
Das Problem besteht auch, wenn ich nur die Zeile 'Load "dri"' unter Module hinzufüge.

Hier die funktionierende (alte) Konfigurationsdatei und das diff zur Neuen.

Code:
# /.../
# SaX generated X11 config file
# Created on: 2007-02-22T10:33:56+0100.
#
# Version: 8.1
# Contact: Marcus Schaefer <sax@suse.de>, 2005
# Contact: SaX-User list <https://lists.berlios.de/mailman/listinfo/sax-users>
#
# Automatically generated by [ISaX] (8.1)
# PLEASE DO NOT EDIT THIS FILE!
#

Section "Files"
  FontPath     "/usr/share/fonts/misc:unscaled"
  FontPath     "/usr/share/fonts/local"
  FontPath     "/usr/share/fonts/75dpi:unscaled"
  FontPath     "/usr/share/fonts/100dpi:unscaled"
  FontPath     "/usr/share/fonts/Type1"
  FontPath     "/usr/share/fonts/URW"
  FontPath     "/usr/share/fonts/Speedo"
  FontPath     "/usr/share/fonts/PEX"
  FontPath     "/usr/share/fonts/cyrillic"
  FontPath     "/usr/share/fonts/latin2/misc:unscaled"
  FontPath     "/usr/share/fonts/latin2/75dpi:unscaled"
  FontPath     "/usr/share/fonts/latin2/100dpi:unscaled"
  FontPath     "/usr/share/fonts/latin2/Type1"
  FontPath     "/usr/share/fonts/latin7/75dpi:unscaled"
  FontPath     "/usr/share/fonts/baekmuk:unscaled"
  FontPath     "/usr/share/fonts/japanese:unscaled"
  FontPath     "/usr/share/fonts/kwintv"
  FontPath     "/usr/share/fonts/truetype"
  FontPath     "/usr/share/fonts/uni:unscaled"
  FontPath     "/usr/share/fonts/CID"
  FontPath     "/usr/share/fonts/ucs/misc:unscaled"
  FontPath     "/usr/share/fonts/ucs/75dpi:unscaled"
  FontPath     "/usr/share/fonts/ucs/100dpi:unscaled"
  FontPath     "/usr/share/fonts/hellas/misc:unscaled"
  FontPath     "/usr/share/fonts/hellas/75dpi:unscaled"
  FontPath     "/usr/share/fonts/hellas/100dpi:unscaled"
  FontPath     "/usr/share/fonts/hellas/Type1"
  FontPath     "/usr/share/fonts/misc/sgi:unscaled"
  FontPath     "/usr/share/fonts/xtest"
  FontPath     "/opt/kde3/share/fonts"
  FontPath     "unix/:7100"
  InputDevices "/dev/gpmdata"
  InputDevices "/dev/input/mice"
EndSection

Section "ServerFlags"
  Option       "AllowMouseOpenFail" "on"
EndSection

Section "Module"
  Load         "dbe"
  Load         "type1"
  Load         "freetype"
  Load         "extmod"
  Load         "glx"
  Load         "v4l"
EndSection

Section "InputDevice"
  Driver       "kbd"
  Identifier   "Keyboard[0]"
  Option       "Protocol" "Standard"
  Option       "XkbLayout" "de"
  Option       "XkbModel" "microsoftpro"
  Option       "XkbRules" "xfree86"
  Option       "XkbVariant" "nodeadkeys"
EndSection


Section "InputDevice"
  Driver       "mouse"
  Identifier   "Mouse[1]"
  Option       "Buttons" "5"
  Option       "Device" "/dev/input/mice"
  Option       "Name" "Logitech USB-PS/2 Optical Mouse"
  Option       "Protocol" "explorerps/2"
  Option       "Vendor" "Sysp"
  Option       "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"
  Driver       "synaptics"
  Identifier   "Mouse[3]"
  Option       "Buttons" "5"
  Option       "Device" "/dev/input/mice"
  Option       "Emulate3Buttons" "on"
  Option       "HorizScrollDelta" "0"
  Option       "InputFashion" "Mouse"
  Option       "Name" "Synaptics;Touchpad"
  Option       "Protocol" "explorerps/2"
  Option       "SHMConfig" "on"
  Option       "Vendor" "Sysp"
  Option       "ZAxisMapping" "4 5"
EndSection


Section "Monitor"
  HorizSync    31-60
  Identifier   "Monitor[0]"
  ModelName    "1024X768@60HZ"
  Option       "DPMS"
  VendorName   "--> LCD"
  VertRefresh  30-60
  UseModes     "Modes[0]"
EndSection


Section "Modes"
  Identifier   "Modes[0]"
  Modeline 	"1024x768" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
  Modeline 	"1024x768" 64.11 1024 1080 1184 1344 768 769 772 795
  Modeline 	"1024x768" 55.00 1024 1072 1104 1184 768 771 775 790 +HSync -Vsync
EndSection


Section "Screen"
  DefaultDepth 24
  SubSection "Display"
    Depth      15
    Modes      "1024x768" 
  EndSubSection
  SubSection "Display"
    Depth      16
    Modes      "1024x768" 
  EndSubSection
  SubSection "Display"
    Depth      24
    Modes      "1024x768" 
  EndSubSection
  SubSection "Display"
    Depth      8
    Modes      "1024x768" 
  EndSubSection
  Device       "Device[0]"
  Identifier   "Screen[0]"
  Monitor      "Monitor[0]"
EndSection


Section "Device"
  BoardName    "RV250 Lf"
  BusID        "1:0:0"
  Driver       "radeon"
  Identifier   "Device[0]"
  Option       "CRT2HSync" "31-48"
  Option       "CRT2Position" "Clone"
  Option       "SaXDualMonitorVendor" "--> VESA"
  Option       "SaXDualOrientation" "LeftOf"
  Option       "SaXDualResolution" "1024x768"
  Option       "SaXDualVSync" "50-60"
  Option       "CRT2VRefresh" "50-60"
  Option       "IgnoreEDID" "yes"
  Option       "MergedFB" "yes"
  Option       "SaXDualHSync" "31-48"
  Option       "MetaModes" "1024x768,1024x768;1024x768,1024x768"
  Option       "SaXDualHead" ""
  Option       "SaXDualMode" "Clone"
  Option       "SaXDualMonitorModel" "1024X768@60HZ"
  VendorName   "ATI"
EndSection


Section "ServerLayout"
  Identifier   "Layout[all]"
  InputDevice  "Keyboard[0]" "CoreKeyboard"
  InputDevice  "Mouse[1]" "CorePointer"
  InputDevice  "Mouse[3]" "SendCoreEvents"
  Option       "Clone" "off"
  Option       "Xinerama" "off"
  Screen       "Screen[0]"
EndSection


Section "DRI"
    Group      "video"
    Mode       0660
EndSection

Section "Extensions"
EndSection
Code:
3c3
< # Created on: 2007-02-22T10:33:56+0100.
---
> # Created on: 2007-03-31T10:17:23+0200.
12d11
< 
59a59
>   Load         "dri"
72d71
< 
99d97
< 
101c99,100
<   HorizSync    31-60
---
>   DisplaySize  305 230
>   HorizSync    29-60
110d108
< 
113d110
<   Modeline    "1024x768" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
115c112,121
<   Modeline    "1024x768" 55.00 1024 1072 1104 1184 768 771 775 790 +HSync -Vsync
---
>   Modeline    "1024x768" 55.00 1024 1072 1104 1184 768 771 775 790 +HSync -VSync
>   Modeline    "1024x600" 48.96 1024 1064 1168 1312 600 601 604 622
>   Modeline    "1024x600" 43.00 1024 1072 1104 1184 600 603 613 619 +HSync -VSync
>   Modeline    "800x600" 38.22 800 832 912 1024 600 601 604 622
>   Modeline    "800x600" 34.75 800 848 880 960 600 603 607 617 +HSync -VSync
>   Modeline    "768x576" 34.96 768 792 872 976 576 577 580 597
>   Modeline    "768x576" 32.25 768 816 848 928 576 579 583 593 +HSync -VSync
>   Modeline    "640x480" 23.86 640 656 720 800 480 481 484 497
>   Modeline    "640x480" 23.25 640 688 720 800 480 483 487 494 +HSync -VSync
>   Modeline    "1024x768" 65.00 1024 1048 1184 1344 768 771 777 806 -HSync -VSync
118d123
< 
123c128
<     Modes      "1024x768" 
---
>     Modes      "1024x768" "1024x600" "800x600" "768x576" "640x480" 
127c132
<     Modes      "1024x768" 
---
>     Modes      "1024x768" "1024x600" "800x600" "768x576" "640x480" 
131c136
<     Modes      "1024x768" 
---
>     Modes      "1024x768" "1024x600" "800x600" "768x576" "640x480" 
135c140
<     Modes      "1024x768" 
---
>     Modes      "1024x768" "1024x600" "800x600" "768x576" "640x480" 
142d146
< 
148,161d151
<   Option       "CRT2HSync" "31-48"
<   Option       "CRT2Position" "Clone"
<   Option       "SaXDualMonitorVendor" "--> VESA"
<   Option       "SaXDualOrientation" "LeftOf"
<   Option       "SaXDualResolution" "1024x768"
<   Option       "SaXDualVSync" "50-60"
<   Option       "CRT2VRefresh" "50-60"
<   Option       "IgnoreEDID" "yes"
<   Option       "MergedFB" "yes"
<   Option       "SaXDualHSync" "31-48"
<   Option       "MetaModes" "1024x768,1024x768;1024x768,1024x768"
<   Option       "SaXDualHead" ""
<   Option       "SaXDualMode" "Clone"
<   Option       "SaXDualMonitorModel" "1024X768@60HZ"
165d154
< 
176d164
<
 
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