[Bug 36461] Re: XOrg dualhead regression

[hmathew]

Similar to Ashley, when set up in a Dual Head configuration that worked
in Breezy, I get Blue/Green/Yellow vertical bars on my second screen
(really old nvidia) and Dapper locks.  I reverted to a single head setup
as a workaround.  Below is my xorg.conf file.  You can see my original
configuration commented out in the ServerLayout section.

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/CID"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
        # paths to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/CID"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "Device"
	Identifier	"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Driver		"i810"
	BusID		"PCI:0:2:0"
EndSection

Section "Device"
	Identifier	"Graphics Blaster [Riva TNT]"
	Driver		"nv"
	BusID		"PCI:1:7:0"
	Option		"NvAGP"	"0"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	28-96
	VertRefresh	43-60
	Modeline	"1280x800 at 60" 83.91 1280 1312 1624 1656 800 816 824 841
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device"
	Monitor		"Generic Monitor"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1600x1200"
	EndSubSection
EndSection

Section "Screen"
	Identifier	"Screen2"
	Device		"Graphics Blaster [Riva TNT]"
	Monitor		"Generic Monitor"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1920x1440" "1920x1200" "1856x1392" "1792x1344" "1680x1050" "1600x1200" "1440x900" "1400x1050" "1280x1024" "1280x960" "1280x854" "1280x800" "1280x768" "1200x800" "1152x864" "1152x768" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1600x1200"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
EndSection

#Section "ServerLayout"
#	Identifier	"DualHead Layout"
#	Screen		0 "Default Screen"
#	Screen		1 "Screen2" RightOf "Default Screen"
#
#	Option	    "Xinerama" "on"
#	Option	    "Clone" "on"
#
#	InputDevice	"Generic Keyboard"
#	InputDevice	"Configured Mouse"
#EndSection

Section "DRI"
	Mode	0666
EndSection

-- 
XOrg  dualhead regression
https://launchpad.net/bugs/36461