Esempio di configurazione scheda grafica

Il file di configurazione della scheda grafica si trova nella directory: /etc/X11 e si chiama xorg.conf.
Per configurarlo basta aprirlo con un editor grafica, ad esempio kedit o kwrite, e scrivere le varie sezioni.
Di seguito un esempio di un file di configurazione funzionante con il chip Nvidia:GeForce FX 5200

Come si vede il file viene generato automaticamente in fase di installazione e, se necessario, modificato manualmente in seguito..
Le modifiche che possono rendersi necessarie sono:
La sosttuzione del driver 'nv' col driver 'nvidia' qualora si installi l'accelerazione grafica (drivers nvidia). Tale sotituzione dovrebbe avvenire in automatico, ma è bene controllare che ciò sia avvenuto. Aggiungere anche le due righe:

Option "RenderAccel" "1"
Option "AllowGLXWithComposite" "true"

Aggiungere l'utlima sezione (Section "Extensions") qualora si vogliano le ombre e le trasparenze.

# SaX generated X11 config file
# Created on: 2005-07-02T13:39:41+0200.
#
# Version: 4.8
#
# Automatically generated by [ISaX] (4.8)
# PLEASE DO NOT EDIT THIS FILE!
#
Section "Files"
FontPath "/usr/X11R6/lib/X11/fonts/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/local"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/URW"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo"
FontPath "/usr/X11R6/lib/X11/fonts/PEX"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/latin2/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/latin7/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/baekmuk:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/japanese:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/kwintv"
FontPath "/usr/X11R6/lib/X11/fonts/truetype"
FontPath "/usr/X11R6/lib/X11/fonts/uni:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/CID"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/ucs/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/hellas/Type1"
FontPath "/usr/X11R6/lib/X11/fonts/misc/sgi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/xtest"
FontPath "/opt/kde3/share/fonts"
EndSection

Section "ServerFlags"
Option "AllowMouseOpenFail"
Option "RandR" "on"
EndSection

Section "Module"
Load "v4l"
Load "dbe"
Load "glx"
Load "type1"
Load "freetype"
Load "extmod"
Section "Extensions" EndSection

Section "InputDevice"
Driver "kbd"
Identifier "Keyboard[0]"
Option "Protocol" "Standard"
Option "XkbLayout" "it"
Option "XkbModel" "pc102"
Option "XkbRules" "xfree86"
EndSection

Section "InputDevice"
Driver "mouse"
Identifier "Mouse[1]"
Option "Device" "/dev/input/mice"
Option "Name" "ImPS/2 Generic Wheel Mouse"
Option "Protocol" "explorerps/2"
Option "Vendor" "Sysp"
Option "ZAxisMapping" "4 5"
EndSection

Section "Monitor"
Option "CalcAlgorithm" "CheckDesktopGeometry"
DisplaySize 320 240
HorizSync 28-82
Identifier "Monitor[0]"

ModelName "1280X1024@60HZ"
Option "DPMS"
VendorName "--> LCD"
VertRefresh 40-60
UseModes "Modes[0]"
EndSection

Section "Modes"
Identifier "Modes[0]"
Modeline "1024x768" 61.89 1024 1080 1184 1344 768 769 772 794
Modeline "800x600" 36.88 800 832 912 1024 600 601 604 621
Modeline "768x576" 33.74 768 792 872 976 576 577 580 596
Modeline "640x480" 23.06 640 656 720 800 480 481 484 497
Modeline "1280x1024" 108.00 1280 1328 1440 1688 1024 1025 1028 1066
EndSection

Section "Screen"
DefaultDepth 24
SubSection "Display"
Depth 15
Modes "1280x1024" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024"
EndSubSection
SubSection "Display"
Section "Extensions" Depth 32
Modes "1280x1024" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "768x576" "640x480"
EndSubSection
Device "Device[0]"
Identifier "Screen[0]"
Monitor "Monitor[0]"
EndSection

Section "Device"
BoardName "GeForce FX 5200 (0x0322)"
BusID "1:0:0"
Driver "nvidia"
Identifier "Device[0]"
Option "RenderAccel" "1" Option "AllowGLXWithComposite" "true"
Screen 0
Option "Rotate" "off"
VendorName "NVidia"
EndSection

Section "ServerLayout"
Identifier "Layout[all]"
InputDevice "Keyboard[0]" "CoreKeyboard"
InputDevice "Mouse[1]" "CorePointer"
Option "Clone" "off"
Option "Xinerama" "off"
Screen "Screen[0]"
EndSection

Section "DRI"
Group "video"
Mode 0660
EndSection

Section "Extensions"
Option "Composite" "Enable"
Option "RENDER" "Enable"
EndSection

Indice

Come si configura il sistema ?