[plug] xorg on a laptop (radeon) - how do I preset the external monitor resolution

[Carl Gherardi]

On Thu, 17 Feb 2005 07:12:50 +0800, William Kenworthy
<billk at iinet.net.au> wrote:
> xorg.conf can be found at: http://wdk.dyndns.org/xorg.conf.html
> The difficulty is that if I start X, and have lots of windows open, I
> have to shut them all down, stop X, plug in the monitor and restart X,
> then reopen all my apps.  Not good, especially when arriving to give
> lecture and (publicly) having to waste time making xorg get its act
> together if I forget to prepare it ahead of time.  XFree86 didnt have
> this problem, so I am sure there is some work around that I have not
> discovered yet.  Can anyone suggest what I need to do?

I think you need a second device for busid pci1:0:0 called ATI1.

Trimmed a bit but "should work"

Section "Device"
    Identifier  "ATI0"
    Driver      "radeon"
    Option      "AGPMode"               "4"
    Option      "AGPFastWrite"          "1"
    Option      "BusType"               "AGP"
    Option      "MonitorLayout"         "LVDS, CRT"
    Option      "DynamicClocks"         "on" 
    Option      "DPMS"                  "on"
    BusID       "PCI:1:0:0" 
EndSection

Section "Device"
    Identifier  "ATI1"
    Driver      "radeon"
    Option      "DynamicClocks"         "on" 
    Option      "DPMS"                  "on"
    BusID       "PCI:1:0:0"
    Option "hw cursor" "off"
    Screen 1
EndSection


# **********************************************************************
# Screen sections
# **********************************************************************

Section "Screen"
    Identifier  "Screen0"
    Device      "ATI0"
    Monitor     "Monitor0"
    DefaultDepth 16

    Subsection "Display"
        Depth       16
        Modes       "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
EndSection

Section "Screen"
    Identifier  "Screen1"
    Device      "ATI1"
    Monitor     "Monitor1"
    DefaultDepth 16

    Subsection "Display"
        Depth       16
        Modes       "1600x1200" "1280x1024" "1024x768" "800x600" "640x480"
        ViewPort    0 0
    EndSubsection
EndSection