Запарился уже... Пытаюсь врубить аппаратное ускорение на своем мандрейке 10.0 (видео Sapphire Radeon 9800 Pro 128 MB AGP), полдня сегодня просидел и ни черта не добился. Скачал: дрова, новые. fglrx. Поставил. Точно так как написано на сайте ATI. После этого по их же рекомендации запустил fglrxinfo, который выдал следующее: 
 
Loading required GL library /usr/lib/libGL.so.1 
Xlib:  extension "XFree86-DRI" missing on display ":0.0". 
display: :0.0  screen: 0 
OpenGL vendor string: Mesa project: www.mesa3d.org 
OpenGL renderer string: Mesa GLX Indirect 
OpenGL version string: 1.3 Mesa 4.0.4 
 
Вот. Вообще индикатором того, что дрова правильно встали и верно сконфигурированы, является строчка "OpenGL vendor string: ATI Technologies Inc." Пробовал деинсталить месу, ноль реакции.  
 
Конфигуратор дописал кучу байды в XFree86Config-4, а именно следующее: 
 
# === ATI device section === 
 
Section "Device" 
    Identifier "ATI Graphics Adapter" 
    Driver "ati" 
    Screen 0 
    BusID "PCI:3:0:0"    # vendor=1002, device=4e48 
    Option "FSAAMSPosY1" "0.000000" 
    Option "StereoSyncEnable" "1" 
     
    # ChipSet                             "ati" 
    # ### generic DRI settings ### 
    # === disable PnP Monitor  === 
    #Option "NoDDC" 
    Option "FSAAMSPosX5" "0.000000" 
    Option "FSAAMSPosY4" "0.000000" 
    Option "FSAAMSPosX2" "0.000000" 
     
    # === Pseudo Color Visuals (8-bit visuals) === 
    Option "PseudoColorVisuals" "off" 
    Option "FSAAMSPosX4" "0.000000" 
    Option "FSAAMSPosY0" "0.000000" 
    Option "FSAADisableGamma" "no" 
    # === Video Overlay for the Xv extension === 
    Option "VideoOverlay" "on" 
    Option "ForceGenericCPU" "no" 
    Option "GammaCorrectionII" "0x00000000" 
     
    # === misc DRI settings === 
    Option "mtrr" "off" # disable DRI mtrr mapper, driver has its own code for mtrr 
    Option "VRefresh2" "unspecified" 
    Option "FSAAMSPosY5" "0.000000" 
     
    # === Center Mode (Laptops only) === 
    Option "CenterMode" "off" 
    Option "IgnoreEDID" "off" 
     
    # === OpenGL Overlay === 
    # Note: When OpenGL Overlay is enabled, Video Overlay 
    # will be disabled automatically 
    Option "OpenGLOverlay" "off" 
    Option "FSAACustomizeMSPos" "no" 
    Option "FSAAScale" "1" 
     
    # ### FireGL DDX driver module specific settings ### 
    # === Screen Management === 
    Option "DesktopSetup" "0x00000000" 
    Option "HSync2" "unspecified" 
    Option "TVHStartAdj" "0" 
     
    # === FSAA Management === 
    Option "FSAAEnable" "no" 
    Option "FSAAMSPosX0" "0.000000" 
    Option "no_dri" "no" 
    Option "GammaCorrectionI" "0x00000000" 
    Option "UseInternalAGPGART" "yes" 
    Option "BlockSignalsOnLock" "on" 
    Option "FSAAMSPosX1" "0.000000" 
    Option "MonitorLayout" "AUTO, AUTO" 
     
    # === Misc Options === 
    Option "UseFastTLS" "0" 
     
    # === disable/enable XAA/DRI === 
    Option "no_accel" "no" 
    Option "FSAAMSPosY3" "0.000000" 
     
    # === OpenGL specific profiles/settings === 
    Option "Capabilities" "0x00008000" 
    Option "TVStandard" "NTSC-M" 
    Option "TVVPosAdj" "0" 
    Option "TVColorAdj" "0" 
    Option "FSAAMSPosY2" "0.000000" 
     
    # === TV-out Management === 
    Option "NoTV" "yes" 
    Option "TVHPosAdj" "0" 
    Option "TVHSizeAdj" "0" 
    Option "ScreenOverlap" "0" 
     
    # === QBS Management === 
    Option "Stereo" "off" 
    Option "FSAAMSPosX3" "0.000000" 
    Option "TVVSizeAdj" "0" 
EndSection 
#  ************************************************************ ********** 
# Screen sections 
#  ************************************************************ ********** 
 
# Any number of screen sections may be present.  Each describes 
# the configuration of a single screen.  A single specific screen section 
# may be specified from the X server command line with the "-screen" 
# option. 
 
Section "Screen" 
    Identifier "Screen0" 
    Device "ATI Graphics Adapter" 
    Monitor "Monitor0" 
    #Option "backingstore" 
     
    Subsection "Display" 
        Depth 24 
        Modes "1280x1024" "1024x768" "800x600" 
        ViewPort 0 0  # initial origin if mode is smaller than desktop 
        Option "XFree86-DRI" "on" 
	# Virtual     1280 1024 
    EndSubsection 
    DefaultDepth 24 
EndSection 
#  ************************************************************ ********** 
# ServerLayout sections. 
#  ************************************************************ ********** 
 
# Any number of ServerLayout sections may be present.  Each describes 
# the way multiple screens are organised.  A specific ServerLayout 
# section may be specified from the X server command line with the 
# "-layout" option.  In the absence of this, the first section is used. 
# When now ServerLayout section is present, the first Screen section 
# is used alone. 
 
Section "ServerLayout" 
    # The Identifier line must be present 
    Identifier "Server Layout" 
     
    # Each InputDevice line specifies an InputDevice section name and 
    # optionally some options to specify the way the device is to be 
    # used.  Those options include "CorePointer", "CoreKeyboard" and 
    # "SendCoreEvents". 
     
    InputDevice "Mouse1" "CorePointer" 
    InputDevice "Keyboard1" "CoreKeyboard" 
     
    # Each Screen line specifies a Screen section name, and optionally 
    # the relative position of other screens.  The four names after 
    # primary screen name are the screens to the top, bottom, left and right 
    # of the primary screen. 
     
    Screen "Screen0" 
EndSection 
 
У меня подозрения как раз на нем - может подскажет кто-нибудь, в чем может быть дело?