questions on dual monitors

[Jeff.Hodges at KingsMountain.com]

Hi, 

If anyone has a moment to help me out here, I'll appreciate it. 

I'm trying to get at least a external monitor "clone" set up to work. My 
system nominally is: dell d820, nvidia quadro nvs 120m, ubuntu 6.10 (both 
gnome & kde installed).

I have read the "dual monitor"/"second monitor" threads from last year and 
applied that info to my xorg.conf as noted below to no avail. The Xorg display 
server throws a fatal error at startup (I included the complete log file in my 
orig post here: <https://lists.ubuntu.com/archives/ubuntu-users/2007-March/1089
29.html> )

does anyone have any ideas about what might be going on, and perhaps 
suggestions on how to proceed?

thanks,

=JeffH
--------------- original message ---------------------

[search terms: dual monitors/second monitor/external monitor]


I tried to set up my /etc/X11/xorg.conf file in the fashion discussed here..

  https://lists.ubuntu.com/archives/ubuntu-users/2006-June/083092.html

..and using the "nv" driver, but got (from /var/log/Xorg.0.log)..

  Fatal server error:
  Requested Entity already in use!


Relevant xorg.conf portions are..


Section "Device"
	Identifier	"NVIDIA Default Card screen 0"
	Driver		"nv"
	BusID		"PCI:1:0:0"
	Screen		0
	Option          "MonitorLayout" "CRT,LFP"
EndSection

Section "Device"
	Identifier	"NVIDIA Default Card screen 1"
	Driver		"nv"
	BusID		"PCI:1:0:0"
	Screen		1
	Option          "MonitorLayout" "CRT,LFP"
EndSection

Section "Monitor"
	Identifier	"LCD Monitor"
	Option		"DPMS"
EndSection

Section "Monitor"
	Identifier	"External Monitor"
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"LCD Screen"
	Device		"NVIDIA Default Card screen 0"
	Monitor		"LCD Monitor"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1920x1200"
	EndSubSection
EndSection

Section "Screen"
	Identifier	"External Screen"
	Device		"NVIDIA Default Card screen 1"
	Monitor		"External Monitor"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1920x1200"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1920x1200"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Dual-Monitor Layout"
	Screen		0	"LCD Screen"
	Screen		1	"External Screen"
#	Screen		0	"LCD Screen"		0	0
#	Screen		1	"External Screen"	Below	"LCD Screen"
        Option          "Clone" "On"
#       Option          "Xinerama" "On"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice     "stylus" "SendCoreEvents"
	InputDevice     "cursor" "SendCoreEvents"
	InputDevice     "eraser" "SendCoreEvents"
	InputDevice	"Synaptics Touchpad"
EndSection


any thoughts?  thanks,

=JeffH