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netw1z

Member

Registered: 2009-12-13

Posts: 13

Dual screen issues with Twinview - Second screen off center & too big

Here is an image of my setup. My main screen is a 1080i plasma using HDMI, but the secondary is a VGA powered LCD on the box itself.

The main screen is fine, but the LCD isnt so much off center as it is not scaled at all to the screen and seemingly as large as the Plasma screen.
Any ideas how I can fix this?

Here is my current Xorg.conf:

Section "ServerLayout"
    Identifier     "Dual Screen"
    Screen      0  "Screen0" 0 0
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
    Option         "Xinerama" "0"
EndSection

Section "Files"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "CRT-0"
    HorizSync       28.0 - 55.0
    VertRefresh     43.0 - 72.0
    Option         "PreferredMode" "1024x768"
    Option         "Primary" "True"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    Option         "PreferredMode" "1024x768"
    Option         "Primary" "False"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GT 240"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    Screen          1
EndSection

Section "Screen"

# Removed Option "TwinView" "0"
# Removed Option "TwinViewXineramaInfoOrder" "CRT-0"
# Removed Option "metamodes" "CRT: 1024x768 +0+0, DFP: nvidia-auto-select +1024+0"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "1"
    Option         "TwinViewXineramaInfoOrder" "DFP-1"
    Option         "metamodes" "CRT: 1024x768 +0+0, DFP: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

gallow

Member

Registered: 2009-07-12

Posts: 9

Re: Dual screen issues with Twinview - Second screen off center & too big

Rather than blind guess the Xorg.conf settings, have you just played with nvidia-settings to see what works?

I'd guess that CRT-0 shouldn't be offset +1024, but I could be wrong because it doesn't actually look pushed that far over...

anrxc

Member

From: Croatia

Registered: 2008-03-22

Posts: 835

Website

Re: Dual screen issues with Twinview - Second screen off center & too big

Any ideas how I can fix this?

But what are you trying to do? Clone the displays? Produce two independant desktops (with ability to share windows between them)? Why is there TwinView "0" in your Screen section?

Here are some classic settings, you shouldn't need anything more:

    # section "Device"
    # Some nvidia driver versions force bad frequencies and resolutions
    #Option    "UseEDIDDpi"    "FALSE"
    #Option    "UseEDIDFreqs"    "FALSE"
    #Option    "ModeValidation"    "NoEdidModes"

    Option    "ConnectedMonitor"    "CRT-0, DFP-0" 
    Option    "TwinView"    "true"

    # Cloning the desktop
    Option    "TwinViewOrientation"    "Clone"

    # Extending the desktop to the extra display
    #Option    "TwinViewOrientation"    "Right"
    ## ...or be more specific
    ##Option    "TwinViewOrientation"    "CRT-0  RightOf DFP-0"

    Option "MetaModes" "1024x768, 1024x768; 800x600, 800x600; 640x480, 640x480"

Last edited by anrxc (2010-12-15 03:54:22)

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You need to install an RTFM interface.