Hello guys, I thought I should say I got this working, thanks to http://gentoo-wiki.com/HOWTO_X850XT_ATI_Drivers I now have DRI for 3D graphics and xv for mplayer working nicely. I include my xorg.conf, but probably the critical line was: Option "VideoOverlay" "on" Bill # Xorg configuration created by system-config-display Section "ServerLayout" Identifier "aticonfig-Layout[all]" Screen 0 "aticonfig-Screen[0]" 0 0 InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "gb" EndSection Section "Module" Load "glx" Load "dri" Load "extmod" EndSection Section "Monitor" Identifier "aticonfig-Monitor[0]" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" EndSection Section "Device" Identifier "aticonfig-Device[0]" Driver "fglrx" Option "DesktopSetup" "horizontal" Option "OverlayOnCRTC2" "1" BusID "PCI:1:0:0" # Loads of stuff from http://gentoo-wiki.com/HOWTO_X850XT_ATI_Drivers # ### generic DRI settings ### # === disable/enable XAA/DRI === Option "no_accel" "no" Option "no_dri" "no" # === misc DRI settings === Option "mtrr" "off" # disable DRI mtrr mapper, driver has its own code for mtrr # === Screen Management === Option "DesktopSetup" "horizontal" Option "ScreenOverlap" "0" Option "GammaCorrectionI" "0x00000000" Option "GammaCorrectionII" "0x00000000" # === OpenGL specific profiles/settings === Option "Capabilities" "0x00000000" Option "CapabilitiesEx" "0x00000000" # === Video Overlay for the Xv extension === Option "VideoOverlay" "on" # === OpenGL Overlay === # Note: When OpenGL Overlay is enabled, Video Overlay # will be disabled automatically Option "OpenGLOverlay" "off" # === Center Mode (Laptops only) === Option "CenterMode" "off" # === Pseudo Color Visuals (8-bit visuals) === Option "PseudoColorVisuals" "off" # === QBS Management === Option "Stereo" "off" Option "StereoSyncEnable" "1" # === FSAA Management === Option "FSAAEnable" "no" Option "FSAAScale" "1" Option "FSAADisableGamma" "no" Option "FSAACustomizeMSPos" "no" Option "FSAAMSPosX0" "0.000000" Option "FSAAMSPosY0" "0.000000" Option "FSAAMSPosX1" "0.000000" Option "FSAAMSPosY1" "0.000000" Option "FSAAMSPosX2" "0.000000" Option "FSAAMSPosY2" "0.000000" Option "FSAAMSPosX3" "0.000000" Option "FSAAMSPosY3" "0.000000" Option "FSAAMSPosX4" "0.000000" Option "FSAAMSPosY4" "0.000000" Option "FSAAMSPosX5" "0.000000" Option "FSAAMSPosY5" "0.000000" # === Misc Options === Option "UseFastTLS" "0" Option "BlockSignalsOnLock" "on" Option "UseInternalAGPGART" "yes" Option "ForceGenericCPU" "no" EndSection Section "Screen" Identifier "aticonfig-Screen[0]" Device "aticonfig-Device[0]" Monitor "aticonfig-Monitor[0]" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection Section "DRI" Group 0 Mode 0666 EndSection Section "Extensions" Option "Composite" "Disable" EndSection