Hi, Thanks for the pointers. You're right I didn't understand what was the difference between my XF86Config and XF86Config-4 files. So now modifing the right file (-4), and installing the vendor drivers made it work. Thanks for the help. For reference to others, let me attach the new config file: # XFree86 4.2.0 configuration generated by Xconfigurator 4.10.7 Section "ServerLayout" Identifier "DualHead" Screen "Screen0" #Option "Xinerama" InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection # Red Hat Linux 6.0 and later use the xfs font server for improved # interactive performance Section "Files" FontPath "unix/:7100" EndSection # Module loading section Section "Module" 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 # 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 EndSection Section "InputDevice" Identifier "Keyboard0" Driver "keyboard" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Mouse0" # Modified by mouseconfig Driver "mouse" Option "Device" "/dev/mouse" Option "Protocol" "IMPS/2" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "Monitor" Identifier "Dell D1626HT" VendorName "Unknown" ModelName "Unknown" HorizSync 31.0-107.0 VertRefresh 50.0-160.0 Option "dpms" EndSection Section "Device" Identifier "NVIDIA GeForce 2 GTS (generic)" Driver "nvidia" BoardName "Unknown" EndSection Section "Device" Identifier "Linux Frame Buffer" Driver "fbdev" BoardName "Unknown" EndSection Section "Screen" Identifier "Screen0" Device "NVIDIA GeForce 2 GTS (generic)" Monitor "Dell D1626HT" Option "TwinView" Option "SecondMonitorHorizSync" "28-65" Option "SecondMonitorVertRefresh" "48-65" Option "MetaModes" "1280x1024,1280x1024; 1024x768,1024X768" Option "TwinViewOrientation" "LeftOf" Option "ConnectdMonitor" "CRT, CRT" Option "NoLogo" DefaultDepth 16 Subsection "Display" Depth 16 Modes "1024x768" "800x600" "640x480" EndSubsection EndSection Section "DRI" Mode 0666 EndSection On Thu, 28 Aug 2003, Mark Vojkovich wrote: > First off, that's an XFree86 3.x config file. That card > wasn't supported until about XFree86 4.1 or so. Second, the > drivers that come with XFree86 don't support the dual-head > feature of the NVIDIA cards. You'd have to run NVIDIA's > binary drivers to get that. > > > Mark. > > On Thu, 28 Aug 2003 Balazs wrote: > > > Hi, > > > > I have been reading through this mailing list, but still can't figure out > > why my dual monitor set-up won't work. After bootup I only have one > > monitor working. Any help is very much appreciated. I have two of the > > same kind of monitor. I'm attaching my > > /etc/X11/XF86Config file with some cuts I hope are not relevant to my > > case. > > > > Thanks in advance. > > > > Balazs > > > > Section "Files" > > RgbPath "/usr/X11R6/lib/X11/rgb" > > FontPath "unix/:7100" > > EndSection > > > > Section "ServerFlags" > > EndSection > > > > Section "Monitor" > > Identifier "Dell D1626HT_0" > > VendorName "Unknown" > > ModelName "Unknown" > > HorizSync 31.0-107.0 > > VertRefresh 50.0-160.0 > > ## Modeline definitions omited > > EndSection > > > > Section "Monitor" > > Identifier "Dell D1626HT_1" > > VendorName "Unknown" > > ModelName "Unknown" > > HorizSync 31.0-107.0 > > VertRefresh 50.0-160.0 > > EndSection > > > > Section "Device" > > Identifier "Generic VGA" > > VendorName "Unknown" > > BoardName "Unknown" > > Chipset "generic" > > EndSection > > > > Section "Device" > > Identifier "NVIDIA GeForce 2 GTS (generic)_0" > > VendorName "Unknown" > > BoardName "Unknown" > > Screen 0 > > EndSection > > > > Section "Device" > > Identifier "NVIDIA GeForce 2 GTS (generic)_1" > > VendorName "Unknown" > > BoardName "Unknown" > > Screen 1 > > EndSection > > > > Section "Screen" > > Driver "svga" > > Device "Generic VGA" > > #Device "NVIDIA GeForce 2 GTS (generic)" > > Monitor "Dell D1626HT_0" > > Subsection "Display" > > Depth 8 > > #Modes (null) > > ViewPort 0 0 > > EndSubsection > > EndSection > > > > Section "Screen" > > Driver "vga16" > > Device "Generic VGA" > > Monitor "Dell D1626HT_0" > > Subsection "Display" > > Modes "640x480" "800x600" > > ViewPort 0 0 > > EndSubsection > > EndSection > > > > Section "Screen" > > Driver "vga2" > > Device "Generic VGA" > > Monitor "Dell D1626HT_0" > > Subsection "Display" > > Modes "640x480" "800x600" > > ViewPort 0 0 > > EndSubsection > > EndSection > > > > # The accelerated servers > > Section "Screen" > > Identifier "Screen0" > > Driver "accel" > > Device "NVIDIA GeForce 2 GTS (generic)_0" > > Monitor "Dell D1626HT_0" > > DefaultColorDepth 32 > > Subsection "Display" > > Depth 24 > > Modes "1280x1024" > > EndSubsection > > Subsection "Display" > > Depth 32 > > Modes "1280x1024" > > ViewPort 0 0 > > EndSubsection > > EndSection > > > > Section "Screen" > > Identifier "Screen1" > > Driver "accel" > > Device "NVIDIA GeForce 2 GTS (generic)_1" > > Monitor "Dell D1626HT_1" > > DefaultColorDepth 32 > > Subsection "Display" > > Depth 24 > > Modes "1280x1024" > > EndSubsection > > Subsection "Display" > > Depth 32 > > Modes "1280x1024" > > ViewPort 0 0 > > EndSubsection > > EndSection > > > > Section "ServerLayout" > > Identifier "DualHead" > > Screen 0 "Screen0" LeftOf "Screen1" > > Screen 1 "Screen1" > > #Option "Xinerama" > > InputDevice "Mouse0" "CorePointer" > > InputDevice "Keyboard0" "CoreKeyboard" > > EndSection > > > > > > _______________________________________________ > > XFree86 mailing list > > XFree86@xxxxxxxxxxx > > http://XFree86.Org/mailman/listinfo/xfree86 > > > > _______________________________________________ > XFree86 mailing list > XFree86@xxxxxxxxxxx > http://XFree86.Org/mailman/listinfo/xfree86 > _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86