my xorg.conf -- in case one of the options is uncommon...

xorg.conf.382-13.1-dgpu (text/plain), 1.06 KB, created by Mark Dominik Bürkle on 2013-03-09 11:25:19 UTC

Section "ServerLayout"
	Identifier     "aticonfig Layout"
	Screen      0  "aticonfig-Screen[0]-0" 0 0
EndSection

Section "Module"
EndSection

Section "Monitor"
	Identifier   "aticonfig-Monitor[0]-0"
	Option	    "VendorName" "ATI Proprietary Driver"
	Option	    "ModelName" "Generic Autodetecting Monitor"
	Option	    "DPMS" "true"
EndSection

Section "Device"
	Identifier  "aticonfig-Device[0]-0"
	Driver      "fglrx"
	BusID       "PCI:1:0:0"
	Option "VideoOverlay" "on"
	Option "TexturedVideo" "on"
	Option "AccelMethod" "UXA"
EndSection

Section "Screen"
	Identifier "aticonfig-Screen[0]-0"
	Device     "aticonfig-Device[0]-0"
	Monitor    "aticonfig-Monitor[0]-0"
	DefaultDepth     24
	SubSection "Display"
		Viewport   0 0
		Depth     24
	EndSubSection
EndSection

Section "dri"
  Group "video"
  Mode 0660
EndSection

Section "Extensions"
        Option        "Composite"        "Enable"
        #Option        "XVideo"           "Disable"
	Option	      "XAANoOffscreenPixmaps" "true"
EndSection

Section "ServerFlags"
        Option        "AIGLX"            "On"
EndSection