Switching video cards : "HowTo" ??

[Vincent Trouilliez]

> I resolved this by manually editing the file to select the correct
> driver. This was much simpler and faster than running the reconfigure
> tool. 

Could you take my hand and guide me through the porcedure ?
I tried everything that people suggested, but no luck, the XF86Config-4
file won't be updated. So can yo help me modify it by hand ?
I have attached the file to this mail.
I have already added the 'nvidia' to  /etc/modules.

What sections do I need to modify, "device" and "modules" ?

this is what I tried, but it failed :

current ATI card setup
***********
Section "Device"
	Identifier	"ATI Technologies, Inc. Rage 128 PF/PRO (AGP TMDS)"
	Driver		"ati"
	BusID		"PCI:2:0:0"
	Option		"HWCursor"	"false"
EndSection
******

I changed "Identifier" for a string of my own "NForce NVidia GeForce 2
MX"
Then I I replaced "ati" Driver by "nvidia". Should that be "nv"
instead ?
For "BusID", I let it alone, because I did 'lspci' and apparently the
on-board NVidia chip uses the same address as the AGP slot that the ATI
card is plugged in.
At the top of the file, in the "modules" section, there are lots of
modules loaded. I don't know what they are for. All I did is add
"nvidia" at the end. But maybe I need to remove some modules ? Maybe
some of them are related to the ATI card, which I don't need for the
NVidia chip ?
And the "DRI" section at the very bottom of the file, can I just leave
it as is ?

Maybe, someone uses a Geforce 2 video card or like me, on-board chip
(MSI K7N420 Pro motherboard, NForce chipset), and could send me his
config file so I can copy the 'modules' section ?

Vince
-------------- next part --------------
# XF86Config-4 (XFree86 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 XF86Config-4 manual page.
# (Type "man XF86Config-4" at the shell prompt.)
#
# This file is automatically updated on xserver-xfree86 package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xfree86
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following commands as root:
#
#   cp /etc/X11/XF86Config-4 /etc/X11/XF86Config-4.custom
#   md5sum /etc/X11/XF86Config-4 >/var/lib/xfree86/XF86Config-4.md5sum
#   dpkg-reconfigure xserver-xfree86

Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	FontPath	"/usr/lib/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/lib/X11/fonts/Type1"
	FontPath	"/usr/lib/X11/fonts/CID"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/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	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"v4l"
	Load	"vbe"
	Load	"xtt"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"fr"
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	"ATI Technologies, Inc. Rage 128 PF/PRO (AGP TMDS)"
	Driver		"ati"
	BusID		"PCI:2:0:0"
	Option		"HWCursor"	"false"
EndSection

Section "Monitor"
	Identifier	"NEC M700"
	HorizSync	31-69
	VertRefresh	55-120
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"ATI Technologies, Inc. Rage 128 PF/PRO (AGP TMDS)"
	Monitor		"NEC M700"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "720x400" "640x480"
	EndSubSection
EndSection

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

Section "DRI"
	Mode	0666
EndSection