Direct rendering

[joker <slava-t@gorodok.net>]

У меня стоит xserver - Xorg. Я не понимаю, почему для моей видеокарты intel 
82865G не работает direct rendering, и малое количество fps на glxgears.
Вот конфигурация xorg.conf:
# XF86Config-4 (XFree86 X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the XF86Config-4 manual page.
# (Type "man XF86Config-4" at the shell prompt.)
#
# This file is automatically updated on xserver-xfree86 package upgrades 
*only*
# if it has not been modified since the last upgrade of the xserver-xfree86
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following commands as root:
#
#   cp /etc/X11/XF86Config-4 /etc/X11/XF86Config-4.custom
#   md5sum /etc/X11/XF86Config-4 >/var/lib/xfree86/XF86Config-4.md5sum
#   dpkg-reconfigure xserver-xfree86

Section "Files"
	# if the local font server has problems, we can fall back on these
    FontPath 	"unix/:7100"
    FontPath 	"/usr/lib/X11/fonts/misc"
    FontPath 	"/usr/lib/X11/fonts/100dpi:unscaled"
    FontPath 	"/usr/lib/X11/fonts/75dpi:unscaled"
    FontPath 	"/usr/lib/X11/fonts/Type1"
    FontPath 	"/usr/lib/X11/fonts/Speedo"
    FontPath 	"/usr/local/share/fonts"
    FontPath 	"/usr/share/fonts"
    FontPath 	"/usr/X11R6/lib/X11/fonts"
    FontPath 	"/usr/share/fonts/truetype"
    FontPath 	"/usr/share/fonts/type1"
    FontPath 	"/usr/X11R6/lib/X11/fonts/100dpi"
    FontPath 	"/usr/X11R6/lib/X11/fonts/75dpi"
    FontPath 	"/usr/X11R6/lib/X11/fonts/misc"
    FontPath 	"/usr/X11R6/lib/X11/fonts/Speedo"
    FontPath 	"/usr/X11R6/lib/X11/fonts/Type1"
EndSection

Section "Module"
	Load	"GLcore"
	Load	"bitmap"
	Load	"dbe"
	Load	"ddc"
	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"record"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc105"
	Option		"XkbLayout"	"us,ru"
	Option		"XkbOptions"	"grp:ctrl_shift_toggle,grp_led:scroll"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/psaux"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection
Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"SendCoreEvents"	"true"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ImPS/2"
	Option		"Emulate3Buttons"	"true"
	Option		"ZAxisMapping"		"4 5"
EndSection

Section "Device"
	Identifier	"Generic Video Card"
	Driver		"i810"
EndSection

Section "Monitor"
	Identifier	"SyncMaster"
	HorizSync	30-96
	VertRefresh	50-160
	Option		"DPMS"
  Gamma   1.00  1.00  1.00  # created by KGamma
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"SyncMaster"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1024x768" "1280x1024"
	EndSubSection
EndSection

Section "ServerLayout"
	Identifier	"Default Layout"
	Screen		"Default Screen"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	InputDevice	"Generic Mouse"
EndSection

Section "DRI"
	Mode	0666
EndSection