gistfile1.txt

Section "Screen"
  Identifier	"Default Screen"
  DefaultDepth	24
EndSection

Section "Module"
  Load	"glx"
EndSection

Section "Device"
  Identifier  "Ati Radeon"
  Driver      "radeon"
  Option      "DRI" "on" 
  Option      "ForceLowPowerMode" "on"
  Option      "DynamicPM" "on"      # Dynamic powersaving.
  Option      "ClockGating" "on"    # Assisting option for powersaving.
  Option      "AccelMethod" "EXA"   # EXA should fit most cases.
  Option      "ColorTilling" "on"   # Hopefully a better performance
  Option      "EXAVSync" "on"       # Sync to lcd controller
  Option      "DMAForXv" "on"       # Forced option in order to enable Xv overlay.
  #Option      "ScalerWidth" "2048"  # That should fix some very rare bugs.
  Option      "EnablePageFlip" "on" # It will not be enabled on R5xx cards.
  Option      "RenderAccel" "on"    # Optional. It should be enabled by default.
  Option      "AccelDFS" "on"       # Optional. See the man page.
  #BusID       "PCI:1:0:0"
EndSection