Sucess with dual monitors

[Jean Hollis Weber]

phenix777 wrote:
> Section "ServerLayout"
> 	Identifier	"Dual-Monitor Layout"
> 	Screen		"Primary"
> 	Screen		"Secondary" RightOf "Primary"
> 	InputDevice	"Generic Keyboard"
> 	InputDevice	"Configured Mouse"
> 	InputDevice     "stylus" "SendCoreEvents"
> 	InputDevice     "cursor" "SendCoreEvents"
> 	InputDevice     "eraser" "SendCoreEvents"
> EndSection
> 
> Section "ServerFlags"
> 	Option 	"xinerama"	"on"
> 	Option 	"DefaultServerLayout"	"Dual-Monitor Layout"
> EndSection
> 
> As far as I know how, xinerama is enabled.  Why am I getting two
> mirrored monitors?  I want one large desktop.  I'm at a total loss.
> 
> =====
> 
> Section "Device"
> 	Identifier	"ATI Technologies, Inc. RV350 AP [Radeon 9600]"
> 	Driver		"ati"
> 	BusID		"PCI:01:00:0"
> 	Screen 0
> 	Option		"UseFBDev"	"true"
> EndSection
> 
> Section "Device"
> 	Identifier	"ATI Technologies, Inc. RV350 AP [Radeon 9600] Secondary"
> 	Driver		"ati"
> 	BusID		"PCI:01:00:1"
> 	Screen 1
> 	Option		"UseFBDev"	"true"
> EndSection
> 

I don't know if this is relevant, but this is how my "Server 
Layout" section looks. I don't have a "Server Flags" section.

Section "ServerLayout"
   Identifier	"Dual-monitor Layout"
   Screen	0  "Laptop Screen"	0	0
   Screen	1  "Secondary Screen"	LeftOf	"Laptop Screen"
# Option	"Clone" "On"
   Option	"Xinerama" "On"
   InputDevice	"Generic Keyboard"
   InputDevice	"Configured Mouse"
   InputDevice	"Synaptics Touchpad"
EndSection

Of possible relevance is that in each "Device" section I added 
this line:

   Option	"MonitorLayout" "CRT,LFP"

I have no idea what that Option does. All I know is that the dual 
screen worked for me after I added that line, and it didn't work 
before. BTW, my conf file does not have this line:
   Option	"UseFBDev"	"true"

If it's any consolation, this drove me nuts for quite awhile 
before I stumbled on something that worked. Of course, what works 
for my setup may not work for yours. Good luck!

--Jean