Arch Linux

joe

Member

From: Folsom, CA

Registered: 2004-07-27

Posts: 51

Website

Dual Display - only clone is working?

I'm using the testing repo and have Intel X3100 graphics with a dual head DVI card (ADD2 PCI-E).  I've been searching on how to get the display to work scross both monitors, rather than just a clone display.  All documentation says that using xrandr is the way to go with the new Intel graphics/xorg.

Unfortuantely, it does nothing:

$ xrandr --output TDMS-1 --left-of TDMS-2

$ xrandr
Screen 0: minimum 320 x 200, current 1680 x 1050, maximum 3360 x 1050
VGA disconnected (normal left inverted right x axis y axis)
TMDS-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 434mm x 270mm
   1680x1050      59.9*+
   1280x1024      75.0     59.9  
   1152x864       74.8  
   1024x768       75.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  
TMDS-2 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 434mm x 270mm
   1680x1050      59.9*+
   1280x1024      75.0     59.9  
   1152x864       74.8  
   1024x768       75.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1

Any help would be most appreciated!

joe

Member

From: Folsom, CA

Registered: 2004-07-27

Posts: 51

Website

Re: Dual Display - only clone is working?

Also, here is my relevant sections of xorg.conf:

Section "Monitor"
    Identifier  "dvi1"
    Option "DPMS"
EndSection

Section "Monitor"
    Identifier  "dvi2"
    Option "DPMS"
EndSection

Section "Device"
    Identifier  "Intelx3100"
    VendorName  "Intel"
    BoardName   "Intel"
    Driver     "intel"
    Option     "monitor-TDMS-1" "dvi1"
    Option     "monitor-TDMS-2" "dvi2"
EndSection

Section "Screen"
    Identifier  "Screen 0"
    Device      "Intelx3100"
    Monitor     "dvi1"
    DefaultDepth 24
    Subsection "Display"
        Depth       24
        Virtual 3360 1050
    EndSubsection
EndSection

# **********************************************************************

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