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#1 2006-12-16 03:55:08

Arch
Member
Registered: 2005-11-05
Posts: 37

Need help with dual monitor setup for KDE 3.5.5.

Here's my hardware:
NEC MultiSync LCD 1530V:  1024x768 (analog)
Samsung SyncMaster 941BW: 1440x900 (digital)
nVidia Dual head AGP video card.

The dual monitor works under dual-boot Windows, boot up and pure Linux console.  I've googled around for help, changed my xorg.conf file accordingly to some sites, but it wasn't much help. 

Here's my working xorg.conf:

Section "ServerLayout"

    Identifier     "Simple Layout"
    Screen         "Screen 1" 0 0
    InputDevice    "Mouse1" "CorePointer"
    InputDevice    "Keyboard1" "CoreKeyboard"
EndSection

Section "Files"
    FontPath        "/usr/share/fonts/misc"
    FontPath        "/usr/share/fonts/75dpi"
    FontPath        "/usr/share/fonts/100dpi"
    FontPath        "/usr/share/fonts/Type1"
EndSection

Section "Module"

    Load           "dbe"      # Double buffer extension
    SubSection     "extmod"
        Option         "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection
    Load           "freetype"
    Load           "glx"
EndSection

Section "InputDevice"

    Identifier     "Keyboard1"
    Driver         "kbd"
    Option         "AutoRepeat" "500 30"
    Option         "XkbRules" "xorg"
    Option         "XkbModel" "pc101"
    Option         "XkbLayout" "us"
EndSection

Section "InputDevice"

    Identifier     "Mouse1"
    Driver         "mouse"
    Option         "Protocol" "Auto"    # Auto detect
    Option         "Device" "/dev/input/mice"
EndSection

Section "Monitor"

    Identifier     "NEC LCD1530V"
    HorizSync       31.5 - 48.5
    VertRefresh     50.0 - 70.0
EndSection

Section "Device"

    Identifier     "Standard VGA"
    Driver         "vga"
    VendorName     "Unknown"
    BoardName      "Unknown"
EndSection

Section "Device"

    Identifier     "NVIDIA GeForce"
    Driver         "nvidia"
    Option "NoLogo" "true"        
    EndSection

Section "Screen"
    Identifier     "Screen 1"
    Device         "NVIDIA GeForce"
    Monitor        "NEC LCD1530V"
    DefaultDepth    24
    SubSection     "Display"
        Viewport    0 0
        Depth       8
        Modes      "1024x768"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       16
        Modes      "1024x768"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       24
        Modes      "1024x768"
    EndSubSection
EndSection

Using this xorg.conf file, only my NEC LCD analog monitor could display KDE while the Samsung digital can't.

Any suggestions?   sad

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#2 2006-12-19 02:12:05

thewonka
Member
From: San Diego, CA
Registered: 2006-11-05
Posts: 13
Website

Re: Need help with dual monitor setup for KDE 3.5.5.

Try adding the second monitor identifier and another screen with the second monitor identifier assigned. I have not done it with a dual card so i am not sure if you will require something more

Guillermo A. Amaral, CSE

Site: http://www.guillermoamaral.com/
Blog: http://blog.guillermoamaral.com/

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#3 2006-12-19 23:54:13

somairotevoli
Member
Registered: 2006-05-23
Posts: 335

Re: Need help with dual monitor setup for KDE 3.5.5.

under section "Device"

Section "Device"

Identifier "NVIDIA GeForce" 
Driver "nvidia" 
Option "NoLogo" "true" 
Option "TwinView"                  "true"
Option "TwinViewOrientation" "RightOf"
#Option "SecondMonitorHorizSync"    "30-50"
#Option "SecondMonitorVertRefresh"  "60"

EndSection

change refresh rates accordingly and uncomment, also delete 

Section "Device" 

Identifier "Standard VGA" 
Driver "vga" 
VendorName "Unknown" 
BoardName "Unknown" 
EndSection

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#4 2006-12-20 22:58:14

Pajaro
Member
Registered: 2004-04-21
Posts: 884

Re: Need help with dual monitor setup for KDE 3.5.5.

somairotevoli wrote:
Option "TwinView"                  "true"
Option "TwinViewOrientation" "RightOf"
#Option "SecondMonitorHorizSync"    "30-50"
#Option "SecondMonitorVertRefresh"  "60"

In my laptop this goes in the Screen section.

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#5 2007-01-01 02:43:52

Arch
Member
Registered: 2005-11-05
Posts: 37

Re: Need help with dual monitor setup for KDE 3.5.5.

Thanks for your help guys, I'm halfway there.

The second monitor shows the KDE desktop, but it isn't exactly what I expected.  Right now, both monitors display at 1024x768 (each) or 2048x768 (total).  The larger monitor stretches and distorts the display of 1024x768 to its natural resolution at 1440x900 and it isn't what I wanted.  Other than that, the dual desktop setup behaves what I expected to.

Here's a snippet of my xorg.conf that currently works: 

Section "Monitor"

    Identifier     "NEC LCD1530V"
    HorizSync       31.5 - 48.5
    VertRefresh     50.0 - 70.0
EndSection

Section "Monitor"
    Identifier    "Samsung SyncMaster"
    HorizSync    31.5 - 60
    VertRefresh    60.0 - 70.0
EndSection


Section "Device"

    #VideoRam    131072
    # Insert Clocks lines here if appropriate
    Identifier     "NVIDIA GeForce"
    Driver         "nvidia"
    Option "NoLogo" "true"         
    Option "TwinView"    "true"
    Option "TwinViewOrientation" "LeftOf"
    Option "SecondMonitorHorizSync" "30-50"
    Option "SecondMonitorVertRefresh" "60"
    # Option "MetaModes" "1440x900, 1440x900; 1024x768, 1024x768"
        EndSection

Section "Screen"
    Identifier     "Screen 1"
    Device         "NVIDIA GeForce"
    Monitor        "NEC LCD1530V"
    DefaultDepth    24
    SubSection     "Display"
        Viewport    0 0
        Depth       8
        Modes      "1024x768"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       16
        Modes      "1024x768"
    EndSubSection
    SubSection     "Display"
        Viewport    0 0
        Depth       24
        Modes      "1024x768"
    EndSubSection
EndSection

Section "Screen"
    Identifier    "Screen 2"
    Device        "NVIDIA GeForce"
    Monitor        "Samsung SyncMaster"
    DefaultDepth    24
    SubSection    "Display"
        Viewport 0 0
        Depth 8
        Modes "1440x900"
    EndSubSection
EndSection

Anyone have an idea?

EDIT:  Oh snaps.  I just did a pacman -Syu and it upgraded Arch Linux to 0.8 and the 2nd monitor stopped working.

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#6 2007-01-01 04:03:24

skottish
Forum Fellow
From: Here
Registered: 2006-06-16
Posts: 7,942

Re: Need help with dual monitor setup for KDE 3.5.5.

Mine is working fine. I noticed some differences in out xorg.conf file. You have the "twinview" stuff in your 'Device' section. On my machine it is in the second monitor (screen1) section: 

Section "Screen"
    Identifier     "screen1"
    Device         "device1"
    Monitor        "monitor1"
    DefaultDepth    24
    Option         "MetaModes" "1280x1024,1280x1024"
    Option         "DPMS"
    # Option         "TwinViewOrientation" "LeftOf"
    Option         "TwinView" "True"
    SubSection     "Display"
        Depth       24
        Modes      "1280x1024"
    EndSubSection
    SubSection     "Display"
        Depth       16
        Modes      "1280x1024"
    EndSubSection

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