[Intel-gfx] Ill behaved dual-head

[Mark Knecht]

Hello,
   I'm running am Intel DH55HC motherboard with the Core i5-661
processor in a dual head configuration patched together from the info
I find on the Intel Linux Graphics web site. I've attached my
xorg.conf file at the end. The system is running 2.6.32-gentoo-r2,
xorg-server-1.6.5-r1, xorg-drivers-1.6 and xf86-video-intel-2.9.1 -
all what Gentoo considers stable.

  Things are working pretty nicely overall but I have one problem I'd
very much like to solve. I'm set up with my main desktop is in front
of me and a secondary desktop is to the right. My main desktop is
attached to the VGA output on the motherboard and the secondary is on
one of the digital outputs. This works fine as I can run Gentoo on the
main screen and VMWare running XP on the larger digital monitor to the
right. Both desktops have different wallpaper and different files and
stuff on them. I.e. - they look quite different.

   The problem occurs when I run tux-racer. The system switches to
some mode where it displays the game on both monitors. The game works
OK - I don't know how to measure how well but it's playable by a putz
like me. Should the game be on both monitors? I don't think so.

   The bigger problem occurs when exiting the game. What happens is
both desktops start using the wallpaper from the second desktop, but
they also use all the file and launcher placements from the first
desktop. Essentially the system is acting sort of like there is now
one combined desktop.

   Is this caused by an oversight in my xorg.conf file somehow, or is
it a real bug? If it's a bug and fixed in a later version then that's
fine. It will trickle down to me eventually.

Thanks,
Mark
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Section "Files"
	ModulePath   "/usr/lib64/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  "extmod"
	Load  "glx"
	Load  "dri"
	Load  "dbe"
	Load  "dri2"
	Load  "record"
EndSection

Section "DRI"
	Mode 0666
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 "Extensions"
	Option "Composite" "Enable"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
        ### [arg]: arg optional
        #Option     "NoAccel"            	# [<bool>]
        #Option     "SWcursor"           	# [<bool>]
        #Option     "ColorKey"           	# <i>
        #Option     "CacheLines"         	# <i>
        #Option     "Dac6Bit"            	# [<bool>]
        #Option     "DRI"                	# [<bool>]
        #Option     "NoDDC"              	# [<bool>]
        #Option     "ShowCache"          	# [<bool>]
        #Option     "XvMCSurfaces"       	# <i>
        #Option     "PageFlip"           	# [<bool>]
	Identifier  "Card0"
	Driver      "intel"
	VendorName  "Intel Corporation"
	BoardName   "Clarkdale Integrated Graphics Controller"
	BusID       "PCI:0:2:0"
	Option	    "monitor-VGA1" "Samsung172s"
	Option      "monitor-HDMI2" "Samsung226bw"
EndSection

Section "ServerLayout"
	Identifier     "Mark_DualHead"
	Screen      0  "Screen0" 0 0
	InputDevice    "Mouse0" "CorePointer"
	InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Monitor"
	Identifier   "Samsung172s"
	VendorName   "Samsung"
	ModelName    "172s"
	Option 	     "PreferredMode" "1280x1024"
	HorizSync    30-81
        VertRefresh  56-75
EndSection

Section "Monitor"
	Identifier   "Samsung226bw"
	VendorName   "Samsung"
	ModelName    "226bw"
	Option 	     "PreferredMode" "1680x1050"
	HorizSync    30-81
        VertRefresh  56-75
	Option       "RightOf" "Samsung172s"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "Samsung172s"
	DefaultDepth 24
	SubSection "Display"
		Viewport   0 0
		Depth     8
		Modes         "1280x1024"  "1024x768"   "800x600"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
		Modes         "1280x1024"  "1024x768"   "800x600"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes         "1280x1024"  "1024x768"   "800x600"
	EndSubSection
EndSection

Section "Screen"
	Identifier "Screen1"
#	Device     "Card0"
	Monitor    "Samsung226bw"
	DefaultDepth 24
	SubSection "Display"
		Viewport   0 0
		Depth     8
		Modes         "1680x1050"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
		Modes         "1680x1050"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes         "1680x1050"
	EndSubSection
EndSection