Hi there: Thanks for your reply. Please see below for my reply. The reason for this post is that I am trying to figure out why my dual head is not working. I have started another thread to describe the problems I have encountered. But I would still like to know more about xorg.conf stuff. >> i am running FC2 on a toshiba laptop that has a Trident CyberBlade Ai1. >> the question is that, when i installed FC2, the Menu->System >> Settings->Display shows that i have "Trident CyberBlade (generic)". i >> then went into change it as "Trident CyberBlade Ai1" then log out. when >> i log back in, the Display->video card still shows up as "Trident >> CyberBlade (generic)" not Ai1. >> >> i then went to look at the xorg.conf. i have >> >> Section "Device" >> Identifier "Videocard0" >> Driver "trident" >> VendorName "Videocard vendor" >> BoardName "Trident CyberBlade/Ai1" >> >> what does this mean? does it mean i am using Ail already, just the >> "Display" not updating, or i don't have the Ai1 driver, so it still uses >> the generic option? > >It means that videocard0 is using the "trident" driver. VendorName and >BoardName are little more than comments for you to describe your actual >hardware and make sure that the you (or system-config-X11) configure the >screen stuff correctly for this hardware. Does your first >"ServerLayout" section reference the correct Screen section, which then >references this device by name? If so, then you've correctly configured >your videocard. I am still pretty new to this, from what I can tell, I think its correct. Below is what I have Section "ServerLayout" Identifier "single head configuration" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection . . . Section "Monitor" Identifier "Monitor0" VendorName "Monitor Vendor" ModelName "Toshiba TOS5082" DisplaySize 240 180 HorizSync 31.0 - 48.0 VertRefresh 50.0 - 70.0 Option "dpms" EndSection Section "Device" Identifier "Videocard0" Driver "trident" VendorName "Videocard vendor" BoardName "Trident CyberBlade (generic)" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 16 SubSection "Display" Viewport 0 0 Depth 24 Modes "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Viewport 0 0 Depth 8 Modes "1024x768" "800x600" "640x480" EndSubSection SubSection "Display" Viewport 0 0 Depth 16 Modes "1024x768" "800x600" "640x480" EndSubSection EndSection > >I don't know, I haven't read the trident documentation, but are you sure >that "CyberBlade(generic)" and "CyberBlase Ail" are different drivers or >just different names for the same driver that differentiates between the >two boards when the server starts up? Could you tell me where I can find the documentation? Many thanks CHUN