I installed Solaris in Fusion and the Solaris tools created a file that was so complete I copied it over to my Parallels installation of Solaris. You might want to try that.
Edit: or try this. It's that file without the comments. Take care with any lines that wrap:
Section "ServerLayout"
Identifier "Simple Layout"
Screen "Screen 1" 0 0
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
EndSection
Section "Files"
RgbPath "/usr/X11/lib/X11/rgb"
FontPath "/usr/X11/lib/X11/fonts/TrueType/"
FontPath "/usr/X11/lib/X11/fonts/Type1/"
FontPath "/usr/X11/lib/X11/fonts/Type1/sun/"
FontPath "/usr/X11/lib/X11/fonts/F3bitmaps/"
FontPath "/usr/X11/lib/X11/fonts/misc/"
FontPath "/usr/X11/lib/X11/fonts/100dpi/"
FontPath "/usr/X11/lib/X11/fonts/75dpi/"
EndSection
Section "Module"
SubSection "extmod"
EndSubSection
Load "bitstream"
Load "type1"
Load "IA"
Load "glx"
EndSection
Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
Option "AutoRepeat" "500 30"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Device" "/dev/kdmouse"
Option "ZAxisMapping" "4 5 6 7"
Option "Emulate3Buttons"
EndSection
Section "Monitor"
Identifier "apple"
HorizSync 31.5 - 79.0
VertRefresh 50.0 - 100.0
Modeline "1440x800_60.00" 93.80 1440 1512 1664 1888 800 801 804 828 -HSync +Vsync
EndSection
Section "Device"
Identifier "Standard VGA"
Driver "vga"
VendorName "Unknown"
BoardName "Unknown"
Option "DPMS"
EndSection
Section "Device"
Identifier "* Generic VESA compatible"
Driver "vesa"
EndSection
Section "Screen"
Identifier "Screen 1"
Device "* Generic VESA compatible"
Monitor "apple"
DefaultDepth 16
SubSection "Display"
Viewport 0 0
Depth 8
Modes "1440x800" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1440x800" "1024x768" "800x600" "640x480"
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1440x800" "1024x768" "800x600" "640x480"
EndSubSection
EndSection
Section "DRI"
Group 0
EndSection
Last edited: Jun 14, 2007