Fedora 5
My Fedora Core 5 install would lock up hard, seemingly at random. Everything would stop and I couldn't even SSH in. It looks like there are some problems with the Radeon driver in FC5:https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=186269.
Commenting out 'Load "dri"' from my xorg.conf seems to have stopped the hanging.
Fedora 12
To use the nvidia driver, you need to disable nouveau. Add the following to the kernel line in grub.conf:
rdblacklist=nouveau vga=0x318
nvidia twin-view setup
# Xorg configuration for nvidia twin-view
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen0" LeftOf "Screen1"
Screen 1 "Screen1" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "off"
Option "Clone" "off"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules/extensions/nvidia"
ModulePath "/usr/lib/xorg/modules"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "gb"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
EndSection
Section "Monitor"
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Del E176FP"
DisplaySize 340 270
### Comment all HorizSync and VertSync values to use DDC:
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 75.0
Option "dpms"
EndSection
Section "Monitor"
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor1"
VendorName "Monitor Vendor"
ModelName "Dell E176FP"
DisplaySize 340 270
### Comment all HorizSync and VertSync values to use DDC:
HorizSync 31.0 - 80.0
VertRefresh 56.0 - 75.0
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "nvidia"
VendorName "Videocard Vendor"
BoardName "nVidia Corporation NV44 [Quadro NVS 285]"
Option "TwinView" "True"
Option "AddARGBGLXVisuals" "True"
BusID "PCI:1:0:0"
EndSection
Section "Device"
Identifier "Videocard1"
Driver "nvidia"
VendorName "Videocard Vendor"
BoardName "nVidia Corporation NV44 [Quadro NVS 285]"
Option "AddARGBGLXVisuals" "True"
BusID "PCI:1:0:0"
Screen 1
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024" "800x600" "640x480"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Videocard1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024" "800x600" "640x480"
EndSubSection
EndSection