Before I begin: I'd like to trouble people to cc me directly on any responses. As I'm sure you're all aware, this is a fairly high-volume list and it's easy for a message to get lost in the crowd. I have a MacBook Pro. Love the hardware to death, and I also love that it is mostly supported under FC6. (Admittedly, I need some help from livna, with madwifi and the fglrx drivers.) I can get X running just fine in nonaccelerated mode, which confuses me, because I've got fglrx loaded as a module, along with dri and everything else I can see that needs loading. Below, you'll find a copy of my (minimalist) xorg.conf. Can anyone point out to me what incredibly obvious thing I'm overlooking that will lead to fgl_glxgears running? (I don't have GLcore loaded because attempting to load it causes a bomb, since it can't find a symbol that it's looking for.) If it helps, fgl_glxgears goes through one frame of animation and then bombs. This gets printed to the console: X Error of failed request: GLXUnsupportedPrivateRequest Major opcode of failed request: 142 (GLX) Minor opcode of failed request: 16 (X_GLXVendorPrivate) Serial number of failed request: 27 Current serial number in output stream: 29 The xorg.conf file follows. It was originally taken from a Debianista, and suitably changed for use with FC6. ===== Section "Files" FontPath "/usr/share/X11/fonts/100dpi" FontPath "/usr/share/X11/fonts/75dpi" FontPath "/usr/share/X11/fonts/encodings" FontPath "/usr/share/X11/fonts/misc" FontPath "/usr/share/X11/fonts/Type1" FontPath "/usr/share/X11/fonts/TTF" FontPath "/usr/share/X11/fonts/util" EndSection Section "Module" # Load "GLcore" Load "i2c" Load "bitmap" Load "ddc" Load "dri" Load "extmod" Load "freetype" Load "glx" Load "int10" Load "type1" Load "vbe" EndSection Section "InputDevice" Identifier "Generic Keyboard" Driver "kbd" Option "CoreKeyboard" Option "XkbRules" "xorg" Option "XkbModel" "pc104" Option "XkbLayout" "us" Option "XkbOptions" "ctrl:nocaps" #Option "XkbOptions" "ctrl:swapcaps" EndSection Section "InputDevice" Identifier "Configured Mouse" Driver "mouse" Option "CorePointer" Option "Device" "/dev/input/mice" Option "Protocol" "ImPS/2" Option "Emulate3Buttons" "true" Option "ZAxisMapping" "4 5" Option "TapButton1" "0" EndSection Section "Monitor" Identifier "Monitor0" Option "DPMS" EndSection Section "Monitor" Identifier "Monitor1" HorizSync 30-111 VertRefresh 50-160 Option "DPMS" EndSection Section "Device" Identifier "ATI Technologies, Inc. FireGL Mobility T2 (M10 NT)" Driver "fglrx" BusID "PCI:1:0:0" Option "backingstore" "true" Option "RenderAccel" "true" Option "DesktopSetup" "0x00000100" # clone Option "MonitorLayout" "LVDS,CRT" Option "MetaModes" "1600x1200-1024x768 1600x1200-1280x1024 1600x1200-1600x1200" EndSection Section "Screen" Identifier "Screen0" Device "ATI Technologies, Inc. FireGL Mobility T2 (M10 NT)" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1440x900" EndSubSection SubSection "Display" Depth 4 Modes "1440x900" EndSubSection SubSection "Display" Depth 8 Modes "1440x900" EndSubSection SubSection "Display" Depth 15 Modes "1440x900" EndSubSection SubSection "Display" Depth 16 Modes "1440x900" EndSubSection SubSection "Display" Depth 24 Modes "1440x900" "1024x768" EndSubSection EndSection Section "Screen" Identifier "Screen1" Device "ATI Technologies, Inc. FireGL Mobility T2 (M10 NT)" Monitor "Monitor1" DefaultDepth 24 SubSection "Display" Depth 1 Modes "1024x768" EndSubSection SubSection "Display" Depth 4 Modes "1024x768" EndSubSection SubSection "Display" Depth 8 Modes "1024x768" EndSubSection SubSection "Display" Depth 15 Modes "1024x768" EndSubSection SubSection "Display" Depth 16 Modes "1024x768" EndSubSection SubSection "Display" Depth 24 Modes "1024x768" EndSubSection EndSection Section "ServerLayout" Identifier "Default Layout" Screen "Screen0" InputDevice "Generic Keyboard" InputDevice "Configured Mouse" EndSection Section "DRI" Mode 0666 EndSection