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Old 02-05-2007, 11:20 PM   #1
Phoenix_Zero
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Help requested getting two Dell LCD monitors working with Debian Etch running KDE


Hi, I'm trying to get dual lcd monitors working with debian etch running kde. I'm trying to get a Dell 2407wfp and a 1707fp running together and able to configure the resolutions independently. I am not looking for cloning here. I'm not really sure what to call it, I would like to be able to drag a window to the other monitor. Or, hell, what are some other possibilities? Thank you very much,
Phoenix
 
Old 02-06-2007, 09:43 AM   #2
JoeDuncan
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What you need to do is edit your /etc/X11/xorg.conf file.

I am using Debian Etch with KDE as well, and have dual head working just fine. You need to have xinerama installed first, so install it in your preferred manner (apt-get install libxinerama1 or whatever...).

So first off you have to add your second video card to the xorg file, this is what I have:
Code:
Section "Device"
        Identifier      "Intel i915GM - Internal"
        Driver          "i810"
        Option          "DRI" "true"
        Option          "MonitorLayout" "CRT,LFP"
        Screen          0
EndSection
For two desktop LCDs you should probably use this line:

Option "MonitorLayout" "TMDS,TMDS"

The important part is the Screen option, because you need to number your video cards. My second video card looks like so:
Code:
Section "Device"
        Identifier      "Intel i915GM - External"
        Driver          "i810"
        Option          "DRI" "true"
        Option          "MonitorLayout" "CRT,LFP"
        Screen          1
EndSection
Again, modify the MonitorLayout for yours.

Next you need to provide a section for each monitor similar to mine:
Code:
Section "Monitor"
        Identifier      "CPT:a613"
        HorizSync       28-49
        VertRefresh     43-72
        Option          "DPMS"
EndSection

Section "Monitor"
        Identifier      "Dell 1907FP"
        HorizSync       30-81
        VertRefresh     56-76
        Option          "DPMS"
EndSection
Then you need to specify two screen sections to specify resolutions etc... This is just like in a normal xorg.conf file, but the important part is that it links video cards to monitors:
Code:
Section "Screen"
        Identifier      "LCD Screen"
        Device          "Intel i915GM - Internal"
        Monitor         "CPT:a613"
        ...etc...
EndSection

Section "Screen"
       Identifier      "External Screen"
       Device          "Intel i915GM - External"
       Monitor         "Dell 1907FP"
       ...etc...
EndSection
Lastly you need to add a "ServerLayout" section and a "ServerFlags" section with Xinerama enabled:
Code:
Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          0       "LCD Screen"
        Screen          1       "External Screen" RightOf "LCD Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
EndSection

Section "ServerFlags"
# comment out this line to stop using xinerama (dual head)
        Option "Xinerama" "true"
EndSection
(make sure the InputDevice lines match your actual devices)

Xinerama is what will allow you to move windows between screens. Without it, you will still get a dual-headed computer, but each screen will be it's own separate KDE desktop. After you have modified the xorg.conf file reboot and then you can do further desktop configuration by right clcking on the KDE desktop and choosing "Configure Desktop".

Let me know if that works.

One note, with Xinerama installed you will not get 3D acceleration. You can get it with two separate desktops on each screen, but not with a shared desktop between two screens.

Good luck!
 
Old 02-07-2007, 02:06 PM   #3
Phoenix_Zero
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Hmm....3d acceleration matters to me.
How would two separate desktops behave?
I'm very unused to altering the xorg.conf file and am rather unfamiliar with its contents. Would it be ok if I posted the xorg.conf here for you to give me some specific pointers on for how to do this?
The graphics card is an nvidia 7950 and I'm using the nvidia proprietary driver in case that affects anything.

Last edited by Phoenix_Zero; 02-07-2007 at 02:07 PM.
 
Old 02-07-2007, 02:50 PM   #4
JoeDuncan
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Two separate desktops just means you have two separate kicker panels and you can't move applications or windows from one desktop to the other, but they both take input from the same mouse and keyboard.

Go ahead and post your xorg.conf and I'll see what I can do to help. I'm assuming your video card has two outputs?

I'm not familiar with nvidia, but it shouldn't really matter if you already have the driver working.

If you don't want Xinerama, then you won't need to install anything to get this working.
 
Old 02-07-2007, 03:24 PM   #5
Phoenix_Zero
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Here is my xorg.conf

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/fonts/X11/misc"
	FontPath	"/usr/X11R6/lib/X11/fonts/misc"
	FontPath	"/usr/share/fonts/X11/cyrillic"
	FontPath	"/usr/X11R6/lib/X11/fonts/cyrillic"
	FontPath	"/usr/share/fonts/X11/100dpi/:unscaled"
	FontPath	"/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/fonts/X11/75dpi/:unscaled"
	FontPath	"/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/fonts/X11/Type1"
	FontPath	"/usr/X11R6/lib/X11/fonts/Type1"
	FontPath	"/usr/share/fonts/X11/100dpi"
	FontPath	"/usr/X11R6/lib/X11/fonts/100dpi"
	FontPath	"/usr/share/fonts/X11/75dpi"
	FontPath	"/usr/X11R6/lib/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	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"
EndSection

Section "Device"
	Identifier	"nVidia Corporation NVIDIA Default Card"
	Driver		"nvidia"
	BusID		"PCI:7:0:0"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	Option		"DPMS"
	HorizSync	28-96
	VertRefresh	43-60
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"nVidia Corporation NVIDIA Default Card"
	Monitor		"Generic Monitor"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

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

Section "DRI"
	Mode	0666
EndSection

Section "Extensions"
	Option "Composite" "Enabled"
EndSection
Ok, I think I like the idea of xinerama. If I needed 3d at some point for some reason (which I have working now) I could just keep this copy of my xorg.conf and switch back to it if I need 3d right?
Thanks for the help so far. I can't wait to see this =)
 
Old 02-07-2007, 08:06 PM   #6
JoeDuncan
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Ok, first off, backup you xorg.conf. Then try this one:

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/fonts/X11/misc"
	FontPath	"/usr/X11R6/lib/X11/fonts/misc"
	FontPath	"/usr/share/fonts/X11/cyrillic"
	FontPath	"/usr/X11R6/lib/X11/fonts/cyrillic"
	FontPath	"/usr/share/fonts/X11/100dpi/:unscaled"
	FontPath	"/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/fonts/X11/75dpi/:unscaled"
	FontPath	"/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/fonts/X11/Type1"
	FontPath	"/usr/X11R6/lib/X11/fonts/Type1"
	FontPath	"/usr/share/fonts/X11/100dpi"
	FontPath	"/usr/X11R6/lib/X11/fonts/100dpi"
	FontPath	"/usr/share/fonts/X11/75dpi"
	FontPath	"/usr/X11R6/lib/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	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"
EndSection

Section "Device"
	Identifier	"nVidia1"
	Driver		"nvidia"
	BusID		"PCI:7:0:0"
        Option          "MonitorLayout" "TMDS,TMDS"
EndSection

Section "Device"
	Identifier	"nVidia2"
	Driver		"nvidia"
	BusID		"PCI:7:0:0"
        Option          "MonitorLayout" "TMDS,TMDS"
EndSection

Section "Monitor"
	Identifier	"Monitor1"
	Option		"DPMS"
	HorizSync	28-96
	VertRefresh	43-60
EndSection

Section "Monitor"
	Identifier	"Monitor2"
	Option		"DPMS"
	HorizSync	28-96
	VertRefresh	43-60
EndSection

Section "Screen"
	Identifier	"Screen1"
	Device		"nVidia1"
	Monitor		"Monitor1"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

Section "Screen"
	Identifier	"Screen2"
	Device		"nVidia2"
	Monitor		"Monitor2"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1920x1200" "1680x1050" "1440x900" "1280x800" "1024x768" "800x600" "640x480"
	EndSubSection
EndSection

Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          0       "Screen1"
        Screen          1       "Screen2" RightOf "Screen1"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
EndSection

Section "ServerFlags"
# comment out this line to stop using xinerama (dual head)
        Option "Xinerama" "true"
EndSection

Section "DRI"
	Mode	0666
EndSection

Section "Extensions"
	Option "Composite" "Enabled"
EndSection
Now, I have made some assumptions here, like both your monitors take the same parameters. If it doesn't work, we'll have to find parameters specific to yor monitor. Give this a try and see what you get (also remember to install xinerama - you should be able to do this with Synaptic or as root with the command line I gave earlier).
 
Old 02-09-2007, 02:20 PM   #7
JoeDuncan
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Did it work?
 
Old 02-09-2007, 04:59 PM   #8
HappyTux
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Try using my file as a guide for yours it is setup for two different resolutions separate screens.

Edit: Make sure to have the Load "xtrap" this is what allows the mouse to move between the screens.

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

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

Section "Module"
        Load    "bitmap"
        Load    "dbe"
        Load    "ddc"
#       Load    "dri"
        Load    "extmod"
        Load    "freetype"
        Load    "glx"
        Load    "int10"
        Load    "record"
        Load    "type1"
        Load    "vbe"
        Load    "xtrap"
EndSection

Section "InputDevice"
        Identifier      "Keyboard0"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc105"
        Option          "XkbLayout"     "us"
EndSection

Section "InputDevice"
        Identifier      "Mouse0"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ExplorerPS/2"
#       Option          "Buttons"               "9"
        Option          "Emulate3Buttons"       "true"
        Option          "ZAxisMapping"          "4 5"
#       Option          "ButtonMapping" "1 2 3 6 7 10 11"
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     "SWcursor"                  # [<bool>]
        #Option     "HWcursor"                  # [<bool>]
        #Option     "NoAccel"                   # [<bool>]
        #Option     "ShowCache"                 # [<bool>]
        #Option     "ShadowFB"                  # [<bool>]
        #Option     "UseFBDev"                  # [<bool>]
        #Option     "Rotate"                    # [<str>]
        #Option     "VideoKey"                  # <i>
        #Option     "FlatPanel"                 # [<bool>]
        #Option     "FPDither"                  # [<bool>]
        #Option     "CrtcNumber"                # <i>
        Identifier  "Card0"
        Driver      "nvidia"
        Option      "NoLogo" "on"
        Option      "NvAgp"  "3"
        Option      "RenderAccel" "true"
        Option      "BackingStore" "On"
        Option      "DPI" "100x100"
#       Option      "IgnoreEDID"  "on"
        Option      "IgnoreDisplayDevices"  "TV"
#       Option      "NoBandWidthTest" "1"
#       Option      "AllowGLXWithComposite" "true"
        Screen       0
        VendorName  "PNY"
        BoardName   "Verto 5900SE NV35 [GeForce FX 5900SE]"
        BusID       "PCI:1:0:0"
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     "accel"                     # [<bool>]
        #Option     "crt_display"               # [<bool>]
        #Option     "composite_sync"            # [<bool>]
        #Option     "hw_cursor"                 # [<bool>]
        #Option     "linear"                    # [<bool>]
        #Option     "mmio_cache"                # [<bool>]
        #Option     "panel_display"             # [<bool>]
        #Option     "probe_clocks"              # [<bool>]
        #Option     "reference_clock"           # <freq>
        #Option     "shadow_fb"                 # [<bool>]
        #Option     "sw_cursor"                 # [<bool>]
        Identifier  "Card1"
        Driver      "nvidia"
        Option      "NoLogo" "on"
        Option      "NvAgp"  "3"
        Option      "RenderAccel" "true"
        Option      "BackingStore" "On"
        Option      "DPI" "100x100"
#       Option      "IgnoreEDID" "on"
#       Option      "NoBandWidthTest" "1"
#       Option      "AllowGLXWithComposite" "true"
        Screen      1
        Option      "IgnoreDisplayDevices"  "TV"
        VendorName  "PNY"
        BoardName   "Verto 5900SE NV35 [GeForce FX 5900SE]"
        BusID       "PCI:1:0:0"
EndSection


# NEC P1250 +
Section "Monitor"
       DisplaySize      384   288     # mm
       Identifier   "Monitor0"
       VendorName   "NEC"
       ModelName    "P1250 +"
       HorizSync    31-110 # DDC-probed
       VertRefresh  55-160 # DDC-probed
       Option       "DPMS"  "true"
       Option       "BackingStore" "On"
EndSection

# Samsung 955DF
Section "Monitor"
        DisplaySize       360   270     # mm
        Identifier   "Monitor1"
        VendorName   "OEC"
        ModelName    "15db"
        HorizSync   30-85    #30-69
        VertRefresh 50-160   #40-120
        Option      "DPMS"
        Option      "BackingStore" "On"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Card0"
        Monitor    "Monitor0"
        DefaultDepth  24
        SubSection "Display"
                Depth     24
                Modes     "1600x1200"
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "Card1"
        Monitor    "Monitor1"
        DefaultDepth 24
        SubSection "Display"
                Depth     24
                Modes     "1280x1024" "800x600"
        EndSubSection
EndSection



Section "ServerLayout"
        Identifier      "DualHead"
        Screen      0  "Screen0" 0 0
        Screen      1  "Screen1" LeftOf "Screen0"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection
 
Old 02-09-2007, 10:22 PM   #9
Phoenix_Zero
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JoeDuncan,
I tried the xorg.conf file with minor edits for resolution on the 1707fp. When I restarted the x server only one screen was active, the larger one, the 2407wfp was not displaying anything. Also, how do I determine which head on my graphics card is being seen as which device in the xorg.conf?
Thank you,
Phoenix
 
Old 02-09-2007, 10:28 PM   #10
HappyTux
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Quote:
Originally Posted by Phoenix_Zero
JoeDuncan,
I tried the xorg.conf file with minor edits for resolution on the 1707fp. When I restarted the x server only one screen was active, the larger one, the 2407wfp was not displaying anything. Also, how do I determine which head on my graphics card is being seen as which device in the xorg.conf?
Thank you,
Phoenix
The connector on the bottom next to the motherboard is usually the first one, 0 in my file. Can you post the xorg.conf you are using and the /var/log/Xorg.0.log file (put this in two posts it is rather big) make sure to copy the file to a backup before starting X again with a working file as it is rather big.
 
Old 02-09-2007, 10:51 PM   #11
Phoenix_Zero
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which one is which if the two heads are on the same graphics card and the motherboard has no video out on its own?
nvidia 7950
will post that info tomorrow,
I'm away from the machine for the night.
Thank you all again for the help so far
 
Old 02-09-2007, 11:19 PM   #12
HappyTux
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Quote:
Originally Posted by Phoenix_Zero
which one is which if the two heads are on the same graphics card and the motherboard has no video out on its own?
nvidia 7950
will post that info tomorrow,
I'm away from the machine for the night.
Thank you all again for the help so far
As I said above the connector at the bottom next to the motherboard is the first one at least that is how it has been on the two cards I have owned. The motherboard having video on it would not matter anyways because the BusID numbers tell X which card you are talking too and the Screen 0 or Screen 1 tells X which connector to use for the display.
 
Old 02-09-2007, 11:24 PM   #13
Phoenix_Zero
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ok. i'll post that info tomorrow.
thanks
 
  


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