Getting DRI to work on a beige PowerMac G3

[David Deans <david.deans@gmail.com>]

Right, this is driving me crazy. I'm currently running sarge and I'm
trying to get DRI to work on a beige PowerMac G3, equipped with a ATI
Rage Pro 3D (Mach64) with 2Meg (sigh) of VRAM. I'm not expecting it to
do amazing things, but atm it doesnt even seem to be starting. Every
time I run a DRI app, I get this complaint in console that the display
cannot be found:

Xlib:  extension "XFree86-DRI" missing on display ":0.0".

What could be causing this? Could there be a module that I have should
have loaded that isn't set up properly? Or is DRI support for Mach64
ATI chipsets broken?

Here's my X486Config-4:
Section "Files"
	FontPath	"unix/:7100"			# local font server
	# if the local font server has problems, we can fall back on these
	FontPath	"/usr/lib/X11/fonts/misc"
	FontPath	"/usr/lib/X11/fonts/cyrillic"
	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/CID"
	FontPath	"/usr/lib/X11/fonts/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
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"	"macintosh"
	Option		"XkbLayout"	"gb"
EndSection

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

Section "Device"
	Identifier	"Generic Video Card"
	Driver		"ati"
#	VideoRam	2048
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	HorizSync	28-38
	VertRefresh	43-72
	Option		"DPMS"
EndSection

Section "Screen"
	Identifier	"Default Screen"
	Device		"Generic Video Card"
	Monitor		"Generic Monitor"
	DefaultDepth	15
#	You might need these, one day....
#	Option		"XaaNoCPUToScreenColorExpandFill"
#	Option		"XaaNoColor8x8PatternFillRect"
#	Option		"XaaNoColor8x8PatternFillTrap"
#	Option		"XaaNoOffscreenPixmaps"
#	Option		"XaaNoPixmapCache"
#	Option		"XaaNoScanlineCPUToScreenColorExpandFill"
#	Option		"XaaNoScreenToScreenColorExpandFill"
	Option		"XaaNoScreenToScreenCopy"
# 	Option		"XaaNoSolidBresenhamLine"
#	Option		"XaaNoSolidHorVertLine"
#	Option		"XaaNoSolidTwoPointLine"
#	Option		"XaaNoSolidFillTrap"
#	Option		"XaaNoSolidFillRect"
	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		"800x600" "640x480"
#	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

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The Delgados R.I.P
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