Arch Linux

edsonv1984

Member

Registered: 2013-10-15

Posts: 1

After upgrade, options in xorg.conf seem to be ignored

I have a dual-monitor configuration. Although similar, both screens are not identical, so I wanted the slightly larger screen to be the primary screen, and on the left side.

After the installation of Arch Linux, the default configuration was the opposite, i.e. the smaller screen, which is on my right, was identified as the primary screen, and displayed the left part of the desktop. So, I looked for some solution, and I came up with the options "RightOf" and "Primary" which I wrote in the xorg.conf file.

The contents of that file are below:

Section "ServerLayout"
	Identifier     "X.org Configured"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
	ModulePath   "/usr/lib/xorg/modules"
	FontPath     "/usr/share/fonts/misc/"
	FontPath     "/usr/share/fonts/TTF/"
	FontPath     "/usr/share/fonts/OTF/"
	FontPath     "/usr/share/fonts/Type1/"
	FontPath     "/usr/share/fonts/100dpi/"
	FontPath     "/usr/share/fonts/75dpi/"
EndSection

Section "Module"
	Load  "glx"
EndSection

Section "InputDevice"
	Identifier  "Keyboard0"
	Driver      "kbd"
EndSection

Section "InputDevice"
	Identifier  "Mouse0"
	Driver      "mouse"
	Option	    "Protocol" "auto"
	Option	    "Device" "/dev/input/mice"
	Option	    "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
	Identifier   "DVI-0"
	VendorName   "Dell"
	ModelName    "P2210"
	Option	     "Primary" "true"
EndSection

Section "Monitor"
	Identifier   "DisplayPort-0"
	VendorName   "Dell"
	ModelName    "P2211H"
	Option	     "RightOf" "DVI-0"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
        ### <percent>: "<f>%"
        ### [arg]: arg optional
        #Option     "NoAccel"            	# [<bool>]
        #Option     "SWcursor"           	# [<bool>]
        #Option     "EnablePageFlip"     	# [<bool>]
        #Option     "ColorTiling"        	# [<bool>]
        #Option     "ColorTiling2D"      	# [<bool>]
        #Option     "RenderAccel"        	# [<bool>]
        #Option     "SubPixelOrder"      	# [<str>]
        #Option     "AccelMethod"        	# <str>
        #Option     "EXAVSync"           	# [<bool>]
        #Option     "EXAPixmaps"         	# [<bool>]
        #Option     "ZaphodHeads"        	# <str>
        #Option     "EnablePageFlip"     	# [<bool>]
        #Option     "SwapbuffersWait"    	# [<bool>]
	Identifier  "Card0"
	Driver      "ati"
	BusID       "PCI:1:0:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Monitor0"
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

I had not had any problem upgrading Arch, until today that I upgraded my system, and the configuration seems to be ignored, since the screens were switched.

If I manually execute the command:

xrandr --output DisplayPort-0 --right-of DVI-0

I get the configuration I want, so it seems that either the options "RightOf" and "Primary" are being ignored or the entire file /etc/X11/xorg.conf is ignored.

As extra information, I leave information on my system

$ lspci | grep VGA
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV710 [Radeon HD 4550]

$ xrandr -q
Screen 0: minimum 320 x 200, current 3600 x 1080, maximum 8192 x 8192
DisplayPort-0 connected primary 1920x1080+1680+0 (normal left inverted right x axis y axis) 477mm x 268mm
   1920x1080      60.0*+
   1280x1024      75.0     60.0  
   1152x864       75.0  
   1024x768       75.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  
DVI-0 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 474mm x 296mm
   1680x1050      59.9*+
   1280x1024      75.0     60.0  
   1152x864       75.0  
   1024x768       75.1     60.0  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  

Thanks in advance for your help.