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manleyd
n00b
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Joined: 23 Jul 2003
Posts: 61
Location: England

PostPosted: Wed Jan 16, 2008 3:26 pm    Post subject: xorg screen configuration Reply with quote

I have a monitor which has both a VGA and a DVI connector and allows switching between the two sources. I would like to be able to connect it to my notebook and to my my desk computer.

The notebook has a VGA port only.

The desk computer has an ASUS nVidia Geforce 8500GT which has two ports, the first is a VGA and the second a DVI. If I can get it to use the second port my problem is solved.

It boots up fine on the DVI cable but as soon as Xorg starts the screen goes blank. X comes up if I switch to VGA.

I have tried inserting Screen = 1 in the Device section of xorg.conf but then X crashes with Screen 0 deleted because of no matching config section and then no screens found.

Does anyone have a working Xorg setup that uses the second port only? If so can you please post your xorg.conf so that I can model my configuration on yours?

Thanks
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absoluteflatness
Tux's lil' helper
Tux's lil' helper


Joined: 21 Jan 2007
Posts: 138
Location: Blacksburg or Falls Church, VA

PostPosted: Wed Jan 16, 2008 6:48 pm    Post subject: Reply with quote

Putting a
Code:
Option "ConnectedMonitor" "DFP"

line in the device section of your xorg.conf should force the nvidia driver to use the DVI port.
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manleyd
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Joined: 23 Jul 2003
Posts: 61
Location: England

PostPosted: Wed Jan 16, 2008 7:19 pm    Post subject: Reply with quote

Thanks for the tip absoluteflatness. Xorg now comes up on the DVI port. However it comes up at a lousy 640x480 resolution. It ignores my screen modes.

Here is my xorg.conf:

Code:
Section "ServerLayout"
    Identifier     "Layout"
    Screen         "Screen0" 0 0
    InputDevice    "Keyboard" "CoreKeyboard"
    InputDevice    "Mouse" "CorePointer"
EndSection

Section "Files"
    FontPath        "/usr/share/fonts/misc:unscaled"
    FontPath        "/usr/share/fonts/75dpi:unscaled"
    FontPath        "/usr/share/fonts/100dpi:unscaled"
    FontPath        "/usr/share/fonts/cyrillic"
    FontPath        "/usr/share/fonts/util"
EndSection

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

Section "ServerFlags"
    Option         "AllowMouseOpenFail" "on"
    Option         "blank time" "10"
    Option         "standby time" "20"
    Option         "suspend time" "30"
    Option         "off time" "60"
EndSection

Section "InputDevice"
    Identifier     "Keyboard"
    Driver         "kbd"
    Option         "Protocol" "Standard"
    Option         "XkbModel" "pc105"
    Option         "XkbLayout" "gb"
EndSection

Section "InputDevice"
    Identifier     "Mouse"
    Driver         "mouse"
    Option         "Protocol" "IMPS/2"
    Option         "Device" "/dev/input/mice"
    Option         "ZAxisMapping" "4 5"
    Option         "Buttons" "5"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    ModelName      "hanns"
    DisplaySize     304    228
    HorizSync       31.0 - 80.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "VGA"
    Driver         "vga"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    Option         "ConnectedMonitor" "DFP"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    SubSection     "Display"
        Viewport    0 0
        Depth       8
        Modes      "1440x900"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       16
        Modes      "1440x900"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       24
        Modes      "1440x900"
    EndSubSection
EndSection

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

Any suggestions?
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