linux user group brescia

salve
 ho installato mdk 10
 ho una scheda g400 con doppia uscita e sto provando a tentoni di configurarla
 per due monitor: qualcosa funziona, ma ho un bel po' di problemi:
 questo è il file XF86Config-4
 
 # File generated by XFdrake. (ma poi l'ho modificato, almeno c'ho provato)
 
 # **********************************************************************
 # Refer to the XF86Config man page for details about the format of
 # this file.
 # **********************************************************************
 
 Section "Files"
     # Multiple FontPath entries are allowed (they are concatenated together)
     # By default, Mandrake 6.0 and later now use a font server independent
 of
     # the X server to render fonts.
     FontPath "unix/:-1"
 EndSection
 
 Section "ServerFlags"
     #DontZap # disable (server abort)
     AllowMouseOpenFail # allows the server to start up even if the mouse
 doesn't work
     #DontZoom # disable / (resolution switching)
 EndSection
 
 Section "Module"
     Load "dbe" # Double-Buffering Extension
     Load "v4l" # Video for Linux
     Load "extmod"
     Load "type1"
     Load "freetype"
     Load "glx" # 3D layer
     Load "dri" # direct rendering
 EndSection
 
 Section "DRI"
     Mode 0666
 EndSection
 
 Section "InputDevice"
     Identifier "Keyboard1"
     Driver "Keyboard"
     Option "XkbModel" "pc105"
     Option "XkbLayout" "it"
     Option "XkbOptions" ""
 EndSection
 
 Section "InputDevice"
     Identifier "Mouse1"
     Driver "mouse"
     Option "Protocol" "ExplorerPS/2"
     Option "Device" "/dev/mouse"
     Option "ZAxisMapping" "6 7"
 EndSection
 
 Section "Monitor"
     Identifier "monitor1"
     VendorName "LG Electronics Inc."
     ModelName "LG StudioWorks 995E"
     HorizSync 30.0-96.0
     VertRefresh 50.0-160.0
 
     # Sony Vaio C1(X,XS,VE,VN)?
     # 1024x480 @ 85.6 Hz, 48 kHz hsync
     ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563
 -hsync -vsync
 
     # TV fullscreen mode or DVD fullscreen output.
     # 768x576 @ 79 Hz, 50 kHz hsync
     ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630
 
     # 768x576 @ 100 Hz, 61.6 kHz hsync
     ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
 EndSection
 
 Section "Monitor"
     Identifier "monitor2"
     VendorName "LG Electronics Inc."
     ModelName "LG StudioWorks 900B"
     HorizSync 30.0-96.0
     VertRefresh 50.0-160.0
 
 
     # Sony Vaio C1(X,XS,VE,VN)?
     # 1024x480 @ 85.6 Hz, 48 kHz hsync
     ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563
 -hsync
 
     # TV fullscreen mode or DVD fullscreen output.
     # 768x576 @ 79 Hz, 50 kHz hsync
     ModeLine "768x576" 50.00 768 832 846 1000 576 590 595 630
 
     # 768x576 @ 100 Hz, 61.6 kHz hsync
     ModeLine "768x576" 63.07 768 800 960 1024 576 578 590 616
 EndSection
 
 Section "Device"
     Identifier "G400_1"
     Driver "mga"
     Screen 0
     BusID "PCI:1:0:0"
 EndSection
 
 Section "Device"
     Identifier "G400_2"
     Driver "mga"
     Screen 1
     BusID "PCI:1:0:0"
 EndSection
 
 Section "Screen"
     Identifier "screen 0"
     Device "G400_1"
     Monitor "monitor1"
     DefaultColorDepth 24
 
     Subsection "Display"
         Depth 8
         Virtual 1280 960
     EndSubsection
 
     Subsection "Display"
         Depth 15
         Virtual 1280 960
     EndSubsection
 
     Subsection "Display"
         Depth 16
         Virtual 1280 960
     EndSubsection
 
     Subsection "Display"
         Depth 24
         Virtual 1280 960
     EndSubsection
     DefaultDepth 16
 EndSection
 
 Section "Screen"
     Identifier "screen 1"
     Device "G400_2"
     Monitor "monitor2"
     DefaultColorDepth 24
 
     Subsection "Display"
         Depth 8
         Virtual 1280 960
     EndSubsection
 
     Subsection "Display"
         Depth 15
         Virtual 1280 960
     EndSubsection
 
     Subsection "Display"
         Depth 16
         Virtual 1280 960
     EndSubsection
 
     Subsection "Display"
         Depth 24
         Virtual 1280 960
     EndSubsection
     DefaultDepth 16
 EndSection
 
 Section "ServerLayout"
     Identifier "layout1"
     InputDevice "Keyboard1" "CoreKeyboard"
     InputDevice "Mouse1" "CorePointer"
     Screen "screen 0" LeftOf "screen 1"
     Screen "screen 1"
 EndSection
 
 
 Ho i seguenti problemi,
 1) la seconda volta che cerco di farlo partire (startx) non riparte più
 (copio il vecchio file XF86xxxx.old)
 2) come faccio a configurare la risoluzione dei monitor
 3) il monitor di destra si comporta come se fosse a sinistra (con il mouse)
 e viceversa
 4) i due monitor non sono permeabili: cioè non posso spostare una finestrra
 da un monitor all'altro.
 grazie e saluti
 Eugenio