Solaris 10 x86 w/ Matrox G450 dual head and xinerama

Question

I have solaris 10 x86 with matrox g450 dual head and x.org x-server. The problem is to get xinerama work. When xinerama isn't enabled, two different desktops work well - or, they work, but they are pretty useless because I can't move windows between them. So, I have to enable xinerama, but it seems, that neither JDS/Gnome nor CDE haven't been built including support for xinerama.
When I enable xinerama, X.org-x-server starts fine and there's dtlogin. When I login and it passes execution to gnome, it fails and x-server restarts. Same with CDE. But if I put 'exec /opt/sfw/bin/xterm to my .dtprofile', it starts ok and I can do some testing..
% dtwm
X Error of failed request: BadWindow (invalid Window parameter)
Major opcode of failed request: 149 (XINERAMA)
Minor opcode of failed request: 2 (XINERAMAGetScreenCount)
Resource id in failed request: 0x0
Serial number of failed request: 18
Current serial number in output stream: 18
% gtk-demo
The program 'gtk-demo' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
(Details: serial 13 error_code 3 request_code 149 minor_code 2)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the --sync command line<br />
option to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
% gtk-demo --sync<br />
The program 'gtk-demo' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadWindow (invalid Window parameter)'.
(Details: serial 13 error_code 3 request_code 149 minor_code 2)
(Note to programmers: normally, X errors are reported asynchronously;
that is, you will receive the error a while after causing it.
To debug your program, run it with the --sync command line<br />
option to change this behavior. You can then get a meaningful
backtrace from your debugger if you break on the gdk_x_error() function.)
If I start /opt/sfw/bin/fvwm2, it works fine too, so the problem seems to be gtk/glib/gnome and CDE. One odd thing is that, normal CDE-programs, like dtterm, dtcm, dtcalc etc. works fine. But dtwm doesn't work in xinerama mode.
So, would anyone have any suggestion what could I do? Do I have to recompile my own GNOME, or could Sun do something to the next Solaris 10 update? (As far as I understood, current Solaris 10 release doesn't include zfs yet, so there will be update soon, I think)
- Tuomas M

Answer 1

Hello,
I'm also using a g450.
Now I'm trying for 5 days to get it work with xinerama under Xorg and/or
Xsun.
Can anybody tell me how to get it work ?
I would like to see a working xorg.conf.
(I don't know how to configure 2 screens for Xsun. Mybe someone can give my his configuration file(s) ?)
Thanks to all who will help me !!!
p.s. here is my latest attempt of xorg.conf which does not provide xinerama for me:
Section "ServerLayout"
Identifier "Multihead layout"
Screen 0 "Screen 0" 0 0
Screen 1 "Screen 1" Rightof "Screen 0"
InputDevice "Mouse1" "CorePointer"
InputDevice "Keyboard1" "CoreKeyboard"
Option "Xinerama" "true"
# Option "Clone" "off"
EndSection
Section "Module"
Load "dbe" # Double buffer extension
SubSection "extmod"
Option "omit xfree86-dga" # don't initialise the DGA extension
EndSubSection
Load "bitstream"
Load "type1"
Load "Xst"
Load "IA"
EndSection
Section "Files"
RgbPath "/usr/X11/lib/X11/rgb"
FontPath "/usr/X11/lib/X11/fonts/TrueType/"
FontPath "/usr/X11/lib/X11/fonts/Type1/"
FontPath "/usr/X11/lib/X11/fonts/Type1/sun/"
FontPath "/usr/X11/lib/X11/fonts/F3bitmaps/"
FontPath "/usr/X11/lib/X11/fonts/misc/"
FontPath "/usr/X11/lib/X11/fonts/100dpi/"
FontPath "/usr/X11/lib/X11/fonts/75dpi/"
# FontPath "/usr/X11/lib/X11/fonts/local/"
# FontPath "/usr/X11/lib/X11/fonts/Speedo/"
# FontPath "/usr/X11/lib/X11/fonts/freefont/"
# ModulePath "/usr/X11/lib/modules"
EndSection
# Input devices
Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
Option "AutoRepeat" "500 30"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "de"
EndSection
# Core Pointer's InputDevice section
Section "InputDevice"
# Identifier and driver
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "ZAxisMapping" "4 5"
Option "Device" "/dev/kdmouse"
# Option "Emulate3Buttons"
# Option "Emulate3Timeout" "50"
EndSection
# Monitor section
# Any number of monitor sections may be present
Section "Monitor"
Identifier "nec"
VendorName "NEC"
ModelName "NEC LCD"
HorizSync 30.0 - 81.0
VertRefresh 50-90
EndSection
Section "Monitor"
Identifier "nec2"
VendorName "NEC"
ModelName "NEC LCD"
HorizSync 30.0 - 81.0
VertRefresh 50-90
EndSection
# Graphics device section
Section "Device"
Identifier "Matrox"
Driver "mga"
VideoRam 32768
BusID "PCI:01:00:0"
# Insert Clocks lines here if appropriate
EndSection
Section "Device"
Identifier "Matrox2"
Driver "mga"
VendorName "Matrox"
BoardName "Matrox Millennium G450"
BusID "PCI:01:04:0"
# Option "MGASDRAM"
EndSection
# Screen sections
Section "Screen"
Identifier "Screen 0"
Device "Matrox"
Monitor "nec"
DefaultDepth 16
Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection
Section "Screen"
Identifier "Screen 1"
Device "Matrox2"
Monitor "nec2"
DefaultDepth 16
Subsection "Display"
Depth 8
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "1280x1024" "1024x768" "800x600" "640x480"
ViewPort 0 0
EndSubsection
EndSection