Hello all, I am having problem with getting xinerama to work and would very much appreciate some help. Here we go. OS - Redhat Linux 7.3 I have an ATI Radeon VE card that can support two monitors. I could not make it work. Only half of my desktop would show on Monitor 0 while a "No Sigal" message showed on Monitor 1. I gave that up. Removed the ATI card from my machine and added a Hercules 128 card. Let the auto-detection and configuration do it's work. It set it up fine!. saved /etc/X11/XF86Config-4 to a backup copy to make my life easier. Added my ATI card back to the machine. Now I have an ATI Radeon VE (AGP) card and a Hecules 128 (PCI) card. My two monitors are the same (two flat screen panels) When using only one card the settings in the attached XF86Config file work just fine for this type of monitor. Did a little of cutting and pasting on my config file. Now my second monitor dsplays out of range. Could anybody give me a clue on where to start trying to fix this problem? I have run out of resources. Thank you in advance, Wellington Here is my config file ************************************************** # File generated by anaconda. Section "ServerLayout" Identifier "Anaconda Configured" Screen "Screen0" # Screen "Screen1" RIghtOf "Screen0" InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "ServerFlags" Option "Xinerama" "true" EndSection Section "Files" RgbPath "/usr/X11R6/lib/X11/rgb" FontPath "unix/:7100" EndSection Section "Module" Load "GLcore" Load "dbe" Load "extmod" Load "fbdevhw" Load "dri" Load "glx" Load "record" Load "freetype" Load "type1" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "keyboard" # Option "XkbOptions" "ctrl:nocaps" Option "XkbRules" "xfree86" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "PS/2" Option "Device" "/dev/psaux" Option "ZAxisMapping" "4 5" Option "Emulate3Buttons" "no" EndSection Section "Monitor" Identifier "M0" VendorName "Monitor Vendor" ModelName "Monitor Model" HorizSync 31 - 60 VertRefresh 56 - 75 Option "dpms" EndSection Section "Monitor" Identifier "M1" VendorName "Monitor Vendor" ModelName "Monitor Model" HorizSync 31 - 60 VertRefresh 56 - 75 Option "dpms" EndSection Section "Device" # no known options Identifier "ATI0" Driver "radeon" VendorName "ATI Radeon VE" BoardName "ATI Radeon VE" BusID "PCI:1:0:0" Option "dpms" EndSection Section "Device" Identifier "TS0" Driver "tseng" BoardName "Unknown" BusID "PCI:2:10:0" videoram 2304 # 2.25 MB, when memory probe is incorrect EndSection Section "Screen" Identifier "Screen0" Device "ATI0" Monitor "M0" DefaultDepth 16 Subsection "Display" Depth 16 Modes "1024x768" "800x600" "640x480" EndSubsection EndSection Section "Screen" Identifier "Screen1" Device "TS0" Monitor "M1" DefaultDepth 16 Subsection "Display" Depth 16 Modes "1024x768" "800x600" "640x480" EndSubsection EndSection Section "DRI" Mode 0666 EndSection