linux user group brescia

Ho provato a far rivivere questa vecchio "rallentatore grafico" come
dice Luca Giuzzi, per godere del Xinerama supportato da XFree86.

Ho installato: Glide_V3-DRI-3.10.0-0.20010309.7.i586.rpm e Mesa-5.0.1.

Ovviamente ho letto il 3dfx-HOWTO, e sbirciato qua e là per trovare
informazioni utili, ma ancora non sono riuscito nell'impresa 

Da qualche parte ho letto che nella sezione Device del XF86Config, per
tali schede devo mettere come driver "glide", solo che in :
/usr/X11R6/lib/modules/drivers/ questo driver non c'è. Ho trovato un
"tdfx_drv.o" e quindi al driver nella sezione Device gli ho assegnato
"tdfx".

alcune info:
$ less /proc/pci:
.......
Bus  0, device  11, function  0:
    Multimedia video controller: 3Dfx Interactive, Inc. Voodoo (rev 2).
      Prefetchable 32 bit memory at 0xd8000000 [0xd8ffffff].
.......
Bus  1, device   0, function  0:
    VGA compatible controller: nVidia Corporation RIVA TNT2 Model 64
(rev 21).
      IRQ 10.
      Master Capable.  Latency=248.  Min Gnt=5.Max Lat=1.
      Non-prefetchable 32 bit memory at 0xd6000000 [0xd6ffffff].
      Prefetchable 32 bit memory at 0xd4000000 [0xd5ffffff].


Quindi ho configurato il seguente
/etc/X11/XF86Config

=======================================================================

# XFree86 4.2.0 configuration generated by Xconfigurator 4.10.7
# Red Hat Linux 6.0 and later use the xfs font server for improved
# interactive performance
# Module loading section

Section "ServerLayout"
        Identifier     "XFree86 Configured"
        Screen         "Screen0"
        Screen         "Screen1" RightOf "Screen0"
        Option         "Xinerama" "true"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
        FontPath     "unix/:7100"
EndSection

Section "Module"
        # Load  "record"        # X event recorder
        # You only need the following two modules if you do not use xfs.
        # Load  "freetype"       # TrueType font handler
        # Load  "type1"         # Adobe Type 1 font handler
        Load  "dbe"             # Double-buffering
        Load  "GLcore"          # OpenGL support
        Load  "dri"             # Direct rendering infrastructure
        Load  "glx"             # OpenGL X protocol interface
        Load  "extmod"          # Misc. required extensions
        Load  "v4l"             # Video4Linux
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "keyboard"
        Option      "XkbLayout" "it"
EndSection

Section "InputDevice"
        # Modified by mouseconfig
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Device" "/dev/mouse"
        Option      "Protocol" "IMPS/2"
        Option      "Emulate3Buttons" "no"
        Option      "ZAxisMapping" "4 5"
EndSection

Section "Monitor"
        Identifier   "IBM G54"
        VendorName   "Unknown"
        ModelName    "Unknown"
        HorizSync    30.0 - 69.0
        VertRefresh  50.0 - 120.0
        ModeLine     "640x480" 45.8 640 672 768 864 480 488 494 530
-hsync -vsync
        ModeLine     "640x480" 25.2 640 664 760 800 480 491 493 525
        ModeLine     "640x480" 31.5 640 680 720 864 480 488 491 521
        ModeLine     "640x480" 31.5 640 656 720 840 480 481 484 500
-hsync -vsync
        ModeLine     "640x480" 36.0 640 696 752 832 480 481 484 509
-hsync -vsync
        ModeLine     "320x200" 12.6 320 336 384 400 200 204 205 225
doublescan
        ModeLine     "320x240" 12.6 320 336 384 400 240 245 246 262
doublescan
        ModeLine     "320x240" 15.8 320 336 384 400 240 244 246 262
doublescan
        Option      "dpms"# 640x480 @ 100 Hz, 53.01 kHz hsync
EndSection

Section "Monitor"
        Identifier  "Philips 14C"
        HorizSync   31.5 - 35.5
        VertRefresh 50.0 - 100.0
EndSection

Section "Device"
        Identifier  "RIVA TNT2"
        Driver      "nvidia"
        BoardName   "Unknown"
        BusID       "PCI:1:0:0"
EndSection

Section "Device"
        Identifier  "Linux Frame Buffer"
        Driver      "fbdev"
        BoardName   "Unknown"
EndSection

Section "Device"
        Identifier "3dfx"
        Driver     "tdfx"
        BusID      "PCI:0:11:0"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "RIVA TNT2"
        Monitor    "IBM G54"
        DefaultDepth     24
        SubSection "Display"
                Depth     24
                Modes  "1024x768" "800x600" "640x480" "600x480"
"320x240"
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "3dfx"
        Monitor    "Philips 14C"

        SubSection "Display"
                Depth   24
                Modes  "800x600" "600x480"
        EndSubSection
EndSection

Section "DRI"
        Mode         0666
EndSection

============================================================================

dando un'occhiata a /var/log/XFree86.0.log

scopro che: 
(WW) Warning, couldn't open module GLcore
(II) UnloadModule: "GLcore"
(EE) Failed to load module "GLcore" (module does not exist, 0)
......
....
(WW) NVIDIA(0): OpenGL is not fully supported in Xinerama
(II) UnloadModule: "tdfx"
(II) Unloading /usr/X11R6/lib/modules/drivers/tdfx_drv.o


Il secondo monitor non da segnali di vita, cosa devo fare?

RedHat 9.0, PIII 800Mhz, RAM 256Mb, HD 20 Gb.

Scusate per la lungheza del mail.


taluego
Daniel