[SOLVED] Dual-head works... until I start GNOME.

Renan Birck · 2009-03-23 20:00:19

Hello,

I have a 15" monitor laying here unused, so I wish to use it a dual-head with my laptop (which uses Intel i965 video). It works on GDM (I get a gray screen on the 2nd monitor), but when I enter GNOME it disappears. Changing resolution options on the GNOME has nil effect.

The laptop uses 1440x900 while the monitor uses 1024x768. My xorg.conf is:

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
    InputDevice    "Mouse0" "CorePointer"
    InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "ServerFlags"
    Option "AutoAddDevices" "False"
    Option "DontZap" "false"
EndSection

Section "Files"
    ModulePath   "/usr/lib/xorg/modules"
    FontPath     "/usr/share/fonts/misc"
    FontPath     "/usr/share/fonts/100dpi:unscaled"
    FontPath     "/usr/share/fonts/75dpi:unscaled"
    FontPath     "/usr/share/fonts/TTF"
    FontPath     "/usr/share/fonts/Type1"
EndSection

Section "Module"
    Load  "xtrap"
    Load  "dbe"
    Load  "dri"
    Load  "glx"
    Load  "extmod"
    Load  "freetype"
    Load "synaptics"
EndSection

Section "InputDevice"
    Identifier  "Keyboard0"
    Driver      "kbd"
    Option "XkbRules" "xorg"
    Option "XkbModel" "abnt2"
    Option "XkbLayout" "br"
EndSection

Section "InputDevice"
    Identifier  "Mouse0"
    Driver      "mouse"
    Option        "Protocol" "auto"
    Option        "Device" "/dev/input/mice"
    Option        "ZAxisMapping" "4 5"
EndSection




Section "Device"
    Identifier  "Card0"
    Driver      "intel"
    VendorName  "Intel Corporation"
    BoardName   "Mobile GM965/GL960 Integrated Graphics Controller"
    BusID       "PCI:0:2:0"
    option "monitor-VGA" "Tela15"
    option "monitor-LVDS" "Notebook"
EndSection

Section "Monitor"
    #DisplaySize      370   230    # mm
    Identifier   "Notebook"
    VendorName   "AUO"
    ModelName    "6287"
EndSection

Section "Monitor"
    Identifier "Tela15"
    VendorName "AOC"
    ModelName "LM520"
    Option "RightOf" "Notebook"
EndSection

Section "Screen"
    Identifier "Screen0"
    Device     "Card0"
    Monitor    "Notebook"
    SubSection "Display"
        Viewport   0 0
        Depth     1
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     4
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     8
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     15
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     16
    EndSubSection
    SubSection "Display"
        Viewport   0 0
        Depth     24
    EndSubSection
    Virtual 2464 900
EndSection

Any clues on how to fix such problem? Thanks!

Last edited by Renan Birck (2009-03-23 21:02:43)

schuay · 2009-03-23 20:21:38

try

xrandr --auto

Renan Birck · 2009-03-23 20:29:39

schuay wrote:

try

xrandr --auto

It clones the screen, which is not what I want, I want the 2nd monitor to be an extension of the first.

schuay · 2009-03-23 20:46:17

take a look at the xrandr manpages.

--left-of, --right-of, --above, --below, --same-as <another output>
Use one of these options to position the output relative to the position of another output.
This allows convenient tiling of outputs within the screen. The position is always com‐
puted relative to the new position of the other output, so it is not valid to say --output
a --left-of b --output b --left-of a.

Last edited by schuay (2009-03-23 20:46:42)

Renan Birck · 2009-03-23 21:02:19

This seems to do it.

#!/bin/bash
xrandr --auto
xrandr --output VGA --right-of LVDS

Will try and read more about xrandr.

Arch Linux

#1 2009-03-23 20:00:19

[SOLVED] Dual-head works... until I start GNOME.

#2 2009-03-23 20:21:38

Re: [SOLVED] Dual-head works... until I start GNOME.

#3 2009-03-23 20:29:39

Re: [SOLVED] Dual-head works... until I start GNOME.

#4 2009-03-23 20:46:17

Re: [SOLVED] Dual-head works... until I start GNOME.

#5 2009-03-23 21:02:19

Re: [SOLVED] Dual-head works... until I start GNOME.

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