Hi Bill,
I have a G550 and dual head works just fine with 4.2.x "out of the box".
I've attached my config file for reference.
I tried installing the matrox software the other week and decided to remove
it the next day. I didn't see any difference in Xinerama mode (still no
DRI on the second head). I believe "merged" mode must be a hold over from
pre-Xinerama days. Turning it on seemed to break window positioning in
Xinerama-aware apps. It behaved as if the X-server saw one large pseudo-
monitor that the G550 split across the heads in hardware. Merged mode
also broke openGL apps for me... maybe a bad interaction with my kernel
(2.4.21pre4ac7).
Anyone know what the advantage(s) of merged mode are supposed to be?
FWIW, I use xfce as my window manager. It is fast, gnome-aware, and
handles multiple screens of different sizes better than sawfish and
kwm/kde.
-- Brad
--
Brad Sawatzky <[EMAIL PROTECTED]>
University of Virginia Physics Department
Ph: (434) 924-6580 Fax: (434) 924-4576
Section "Files"
FontPath "unix/:7100" # local font server
# if the local font server has problems, we can fall back on these
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/CID"
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 "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" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
#Option "CorePointer"
Option "Device" "/dev/mouse"
Option "Protocol" "ImPS/2"
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 "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
Identifier "TurboMouse"
Driver "mouse"
Option "CorePointer"
Option "SendCoreEvents" "true"
Option "Device" "/dev/input/mice"
#Option "Protocol" "auto"
#Option "Protocol" "usb"
Option "Protocol" "ImPS/2"
Option "Resolution" "200"
Option "Buttons" "5"
Option "ZAxisMapping" "4 5"
EndSection
Section "Device"
Identifier "Matrox G550-0"
Driver "mga"
Screen 0
BusID "PCI:1:0:0"
Option "AGPMode" "4"
#Option "UseFBDev" "true"
EndSection
Section "Device"
Identifier "Matrox G550-1"
Driver "mga"
Screen 1
BusID "PCI:1:0:0"
Option "AGPMode" "4"
#Option "UseFBDev" "true"
EndSection
Section "Monitor"
Identifier "NEC XV-17"
HorizSync 30-60
VertRefresh 50-75
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Apple 21"
HorizSync 30-130
VertRefresh 60-160
Option "DPMS"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Matrox G550-0"
Monitor "Apple 21"
DefaultDepth 24
SubSection "Display"
Depth 8
Modes "1600x1200" "1280x1024"
EndSubSection
SubSection "Display"
Depth 16
Modes "1600x1200" "1280x1024"
EndSubSection
SubSection "Display"
Depth 24
Modes "1600x1200" "1280x1024"
EndSubSection
EndSection
Section "Screen"
Identifier "Screen1"
Device "Matrox G550-1"
Monitor "NEC XV-17"
DefaultDepth 24
SubSection "Display"
Depth 8
Modes "1280x1024" "1024x768"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x1024" "1024x768"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x1024" "1024x768"
EndSubSection
EndSection
Section "ServerLayout"
Identifier "Dual Head Layout"
Option "Xinerama"
Screen "Screen0"
Screen "Screen1" LeftOf "Screen0"
InputDevice "Generic Keyboard"
InputDevice "TurboMouse"
#InputDevice "Configured Mouse"
#InputDevice "Generic Mouse"
EndSection
Section "DRI"
Mode 0666
EndSection
