[F9] radeon dual-head display w/Xinerama

Sean Bruno sean.bruno at dsl-only.net
Tue Aug 19 02:27:31 UTC 2008


On Sun, 2008-08-17 at 17:53 +0000, Peter Boy wrote:
> Am Samstag, den 16.08.2008, 10:12 -0700 schrieb Sean Bruno:
> > The desktop area for each monitor, is somehow exceeding the displayable
> > area(I have to move the mouse to the edge of the monitor to make the
> > desktop scroll over to the rest of the desktop).  This only shows up in
> > a dual head configuration.  If I simply comment out the second display,
> > my primary display is sized correctly and all is well.  
> > ....
> > Help?
> 
> 
> When I updated to F9 I had some probs with my ati dual head card. My
> conf file is:
> 
> Section "ServerLayout"
> 	Identifier     "ATI dual head configuration"
> 	Screen      0  "Default Screen" 0 0
> 	InputDevice    "Mouse0" "CorePointer"
> 	InputDevice    "Keyboard0" "CoreKeyboard"
> EndSection
> 
> ... (modules, keyboard, etc)
> 
> Section "Device"
> 
> 	Identifier	"ATI Radeon"
> 	Driver		"radeon"
> 	VendorName	"ATI corp."
> 	BoardName	"ATI Technologies Inc RV350 AP [Radeon 9600]"
> 	BusID		"PCI:1:0:0"
> 	# Option	"AGPFastWrite"  "on"
> 	# Option		"AccelMethod"  "EXA"
> 	Option		"Monitor-DVI-0" "Panel-0"
> 	Option		"Monitor-DVI-1" "Panel-1"
> EndSection
> 
> Section "Monitor"
> 
> 	Identifier   "Panel-1"
> 	VendorName   "Monitor Vendor"
> 	ModelName    "NEC MultiSync LCD1700NX (Digital)"
> 	# Comment all HorizSync and VertSync values to use DDC:
> 	# HorizSync    31.0 - 68.0
> 	# VertRefresh  56.0 - 75.0
> 	# DisplaySize  340	270
> 	Option	"dpms"
> #	Option	"LeftOf" "Panel-0"
> #	Option	"Ignore" "true"
> 
> EndSection
> 
> Section "Monitor"
> 
> 	Identifier   "Panel-0"
> 	VendorName   "Monitor Vendor"
> 	ModelName    "NEC MultiSync LCD1700NX (Digital)"
> 	# Comment all HorizSync and VertSync values to use DDC:
> 	# HorizSync    31.0 - 68.0
> 	# VertRefresh  56.0 - 75.0
> 	Option	    "dpms"
> 	Option	"RightOf" "Panel-1"
> 
> EndSection
> 
> Section "Screen"
> 	Identifier "Default Screen"
> 	Device     "ATI Radeon"
> 	Monitor    "Panel-1"
> 	DefaultDepth     24
> 
> 	SubSection "Display"
> 		Viewport   0 0
> 		Depth     24
> 		# big virtual screen to place the monitors
> 		Virtual   2560 1024
> #		Modes    "1280x1024" "1024x768" "800x600" "640x480"
> 	EndSubSection
> 
> EndSection
> 
> 
> Especially important is the "Virtual" option in section "Screen".
> 
> You may check for a ~/.gnome2/monitors.xml file and remove / rename it
> and check. See https://bugzilla.redhat.com/show_bug.cgi?id=457673 
> 
> 
> Peter
> 
> 
> 
Thanks for the insight.  I came up with the following xorg.conf that
allows me to run dual screens again!

Sean
-------------- next part --------------
# Xorg configuration created by pyxf86config

Section "ServerLayout"
	Identifier     "Default Layout"
	Screen       0  "Screen0" 0 0
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "InputDevice"
# keyboard added by rhpxl
	Identifier  "Keyboard0"
	Driver      "kbd"
	Option	    "XkbModel" "pc105"
	Option	    "XkbLayout" "us"
EndSection

Section "Device"
	Identifier  "Videocard0"
	Driver      "radeon"
	Screen	    0
	Option		"Monitor-DVI-0"	"Monitor0"
	Option		"Monitor-VGA-0"	"Monitor1"
EndSection

Section "Monitor"
	Identifier   "Monitor0"
	ModelName    "LCD Panel 1600x1200"
	HorizSync    31.5 - 74.7
	VertRefresh  56.0 - 65.0
	Option	    "dpms"
EndSection

Section "Monitor"
	Identifier   "Monitor1"
	ModelName    "LCD Panel 1600x1200"
	HorizSync    31.5 - 74.7
	VertRefresh  56.0 - 65.0
	Option	    "dpms"
	Option		"RightOf" "Monitor0"
EndSection


Section "Screen"
	Identifier "Screen0"
	Device     "Videocard0"
	Monitor	   "Monitor 0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
		#Virtual	"2560x1024"
		Modes	"1280x1024"
	EndSubSection
EndSection


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