Woody + X4 debs + DGA = >:|

[Jeremy Nickurak <gehn@email.com>]

Allright, I've been trying to take this up with matroxusers, matrox' technical support people, etc, and I still haven't gotten a straight answer.
Matrox G400 32mb DH card on an up-to-date woody installation, and the most recent 2.4.0-test kernel. The problem described below has appeared for as long as I can remember. (Relatively early in Branden's phase-2 debs)

DGA display does not want to work. Whenever a program attempts to perform a dga operation, the video mode changes, but only a blank screen is displayed. Everything else (sound, input etc) seems to go on, but there's no display whatsoever. Once the program stops using DGA (or successfully terminates, whatever comes first), the display becomes usable again as one might expect.
No errors are reported, by the server, nor on the standard output of the program in question. I've attached my XF86Config-4 file, but I get the impression this isn't going to help much, and I'll tell you why.

I _can_ get DGA working if I switch to Matrox's now-over-2-month-old driver. The only problem with this solution is that it's compiled for DRM1, so using it will kill off my currently working (and very well i should add) GL. I also haven't been able to extract from matrox any information on when they plan to release updated drivers.

I'm not sure of any other information to add, but if there's something you'd like, please go ahead and ask. I also cannot confirm whether or not these symptons exhibit themselves in the current XFree4 CVS. (I'm on a 28.8 modem, and my access to the local T1 is sporadic). Any comment with respect to that would also be greatly appreciated.

-- 
Jeremy Nickurak -= gehn@email.com =-
"Time is infinite. You are finite, Zathras is finite.
 This... this is wrong tool. Very bad. Never use this tool."
	- Zathras, Babylon 5

# XF86Config-4 (XFree86 server configuration file) generated by Dexter, the
# Debian X Configuration tool.
#
# Edit this file with caution, and see the XF86Config manual page.
# (Type "man XF86Config" at the shell prompt.)

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/Speedo"
	FontPath	"/usr/lib/X11/fonts/100dpi"
	FontPath	"/usr/lib/X11/fonts/75dpi"
EndSection

Section "ServerFlags"
EndSection

Section "Module"
	Load	"ddc"
	Load	"GLcore"
	Load	"dbe"
	Load	"dri"
	Load	"extmod"
	Load	"glx"
	Load	"pex5"
	Load	"record"
	Load	"xie"
	Load	"bitmap"
	Load	"freetype"
	Load	"speedo"
	Load	"type1"
	Load	"vbe"
	Load	"int10"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"keyboard"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xfree86"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Generic Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Protocol"		"ImPS/2"
	Option		"Device"		"/dev/input/mice"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "Device"
	Identifier	"Generic Graphics Device"
	Driver "mga"
EndSection

Section "Monitor"
	Identifier	"Generic Monitor"
	HorizSync	30-85
	VertRefresh	50-130
	Option		"DPMS"
EndSection

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

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

Section "DRI"
	Mode	0666
EndSection

# end of XF86Config

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