Sucess with dual monitors

phenix777 ulist at gs1.ubuntuforums.org
Sat Jun 24 21:22:12 UTC 2006


Marius Gedminas Wrote:

>If your two monitors show the same picture, then enabling/disabling

>Xinerama will do nothing -- you need to tell X to use two screens
first.

>

>(There's an alternative way called MergedFB, but it is supported only
by

>some of the video drivers, e.g. radeon.  i810 does not support it.)

>

>The easiest way to achieve this is to find someone who has the same

>video card, has dual-head configured, and runs the same version of

>Ubuntu, and ask them for their xorg.conf file.



Regardin xorg.conf:

I have 2 Devices set

I have 2 Monitors set

I have 2 Screens set



These all work fine.  X froze on me a few times but now it's running
fine.  However, what I have is two mirrored monitors.  I also added the
following to xorg.conf:



=====

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.



BTW, I have googled for my video card but have come up empty.



If it helps, here is the relevant portion of xorg.conf:

=====

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



Section "Monitor"

	Identifier	"BenQ FP757-12 Primary"

	Option		"DPMS"

	HorizSync	30-65

	VertRefresh	50-75

EndSection



Section "Monitor"

	Identifier	"BenQ FP757-12 Secondary"

	Option		"DPMS"

	HorizSync	30-65

	VertRefresh	50-75

EndSection



Section "Screen"

	Identifier	"Primary"

	Device		"ATI Technologies, Inc. RV350 AP [Radeon 9600]"

	Monitor		"BenQ FP757-12 Primary"

	DefaultDepth	24

	SubSection "Display"

		Depth		1

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		4

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		8

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		15

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		16

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		24

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

EndSection



Section "Screen"

	Identifier	"Secondary"

	Device		"ATI Technologies, Inc. RV350 AP [Radeon 9600] Secondary"

	Monitor		"BenQ FP757-12 Secondary"

	DefaultDepth	24

	SubSection "Display"

		Depth		1

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		4

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		8

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		15

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		16

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

	SubSection "Display"

		Depth		24

		Modes		"1280x1024" "1152x864" "1024x768" "800x600" "640x480"

	EndSubSection

EndSection


-- 
phenix777




More information about the ubuntu-users mailing list