[ubuntu-it] doppio monitor

[Felix]

Buongiorno a tutti,
Sulla Karmic sto cercando di utilizzare 2 monitor, uno per il normale 
utilizzo ed il secondo da utilizzare come schermo televisivo.
Il 1° passaggio dovrebbe consistere nel far riconoscere al sistema il 
monitor aggiunto.

Premetto che ho passato la serata di ieri a spulciare tra i forum ed i 
wiki ma senza risultato... ho trovato i seguenti post ma, applicando i 
consigli che ho trovato, non ho risolto il problema per cui mi rivolgo 
alla lista:
- http://forum.ubuntu-it.org/index.php?topic=311794.msg2355294
- http://vincenzoampolo2.wordpress.com/2009/07/
- http://forum.ubuntu-it.org/index.php?topic=311794.msg2351433
e vari altri ma senza successo.

Tramite NVIDIA X Server Settings non sono riuscito ad attivare il 
secondo monitor pur se viene riconosciuto perfettamente.
Qualcuno saprebbe consigliarmi?
Grazie anticipatamente,
Felice

Il sistema:
- GNU/Linux - Karmic Koala 9.10
- Linux 2.6.31-17-generic
- scheda video : GeForce 8400 GS/PCI/SSE2
- OpenGL renderer string: GeForce 8400 GS/PCI/SSE2

Il mio Xorg.conf
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 1.0  (buildd a palmer)  Sun Feb  1 20:21:04 
UTC 2009
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig:  version 1.0  (buildmeister a builder63)  Fri Aug 14 
17:54:58 PDT 2009

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 1024 0
    Screen      1  "Screen1" LeftOf "Screen0"
    InputDevice    "Keyboard0" "CoreKeyboard"
    InputDevice    "Mouse0" "CorePointer"
EndSection

Section "Files"
EndSection

Section "ServerFlags"
    Option         "Xinerama" "0"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Mouse0"
    Driver         "mouse"
    Option         "Protocol" "auto"
    Option         "Device" "/dev/psaux"
    Option         "Emulate3Buttons" "no"
    Option         "ZAxisMapping" "4 5"
EndSection

Section "InputDevice"

    # generated from default
    Identifier     "Keyboard0"
    Driver         "kbd"
EndSection

Section "Monitor"
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Acer V223HQ"
    HorizSync       31.0 - 84.0
    VertRefresh     56.0 - 75.0
    Option         "DPMS"
EndSection

Section "Monitor"
    Identifier     "Monitor1"
    VendorName     "Unknown"
    ModelName      "Acer AL507"
    HorizSync       30.0 - 63.0
    VertRefresh     55.0 - 75.0
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    BusID          "PCI:4:0:0"
    Screen          0
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 8400 GS"
    BusID          "PCI:4:0:0"
    Screen          1
EndSection

Section "Screen"

# Removed Option "TwinView" "0"
# Removed Option "metamodes" "CRT: nvidia-auto-select +0+0"
# Removed Option "TwinView" "1"
# Removed Option "metamodes" "CRT: nvidia-auto-select +0+0, DFP: 
nvidia-auto-select +1920+0"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "TwinViewXineramaInfoOrder" "CRT-0"
    Option         "metamodes" "CRT: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Section "Screen"
    Identifier     "Screen1"
    Device         "Device1"
    Monitor        "Monitor1"
    DefaultDepth    24
    Option         "TwinView" "0"
    Option         "metamodes" "DFP: nvidia-auto-select +0+0"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection

Ora la parte più interessante del GLXInfos:
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
server glx vendor string: NVIDIA Corporation
server glx version string: 1.4
server glx extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
    GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
    GLX_EXT_texture_from_pixmap, GLX_ARB_create_context, 
GLX_ARB_multisample,
    GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB
client glx vendor string: NVIDIA Corporation
client glx version string: 1.4
client glx extensions:
    GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_visual_info,
    GLX_EXT_visual_rating, GLX_EXT_import_context, GLX_SGI_video_sync,
    GLX_NV_swap_group, GLX_NV_video_out, GLX_SGIX_fbconfig, 
GLX_SGIX_pbuffer,
    GLX_SGI_swap_control, GLX_ARB_create_context, GLX_NV_float_buffer,
    GLX_ARB_fbconfig_float, GLX_EXT_fbconfig_packed_float,
    GLX_EXT_texture_from_pixmap, GLX_EXT_framebuffer_sRGB,
    GLX_NV_present_video, GLX_NV_multisample_coverage
GLX version: 1.3
GLX extensions:
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_SGIX_fbconfig,
    GLX_SGIX_pbuffer, GLX_SGI_video_sync, GLX_SGI_swap_control,
    GLX_EXT_texture_from_pixmap, GLX_ARB_create_context, 
GLX_ARB_multisample,
    GLX_NV_float_buffer, GLX_ARB_fbconfig_float, GLX_EXT_framebuffer_sRGB,
    GLX_ARB_get_proc_address
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 8400 GS/PCI/SSE2
OpenGL version string: 3.0.0 NVIDIA 185.18.36
OpenGL shading language version string: 1.30 NVIDIA via Cg compiler