Hi, I used my radeon dual DVI card up to F7 without any problems in MergedFB mode as one big screen (xinerama). In Fedora 9 MergedFB mode is gone and replaced by randr compatible configuration. I figured out how to modify xorg.conf. My current state is: - as soon as graphical boot screen comes up I can move the mouse from one screen to the other and back, it is, it feels like xinerama, but only one screen is used for messages - OK - when gdm starts I have one big screen as expected - OK - after login the display switches to cloned configuration - Problem - I can manually switch to one big screen (xinerama-like) using xrandr --output DVI-0 --right-of DVI-1 Obviously I have missed something in my configuration file. Please, could someone have a look on it? -------------------------------------------------------------------- Section "ServerLayout" Identifier "ATI dual head configuration" Screen 0 "Default Screen" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection .... (keyboard / mouse left off) Section "Device" Identifier "ATI Radeon" Driver "radeon" VendorName "ATI corp." BoardName "ATI Technologies Inc RV350 AP [Radeon 9600]" BusID "PCI:1:0:0" # Option "AccelMethod" "EXA" Option "Monitor-DVI-0" "Panel-0" Option "Monitor-DVI-1" "Panel-1" EndSection Section "Monitor" Identifier "Panel-1" ModelName "NEC MultiSync LCD1700NX (Digital)" Option "dpms" EndSection Section "Monitor" Identifier "Panel-0" ModelName "NEC MultiSync LCD1700NX (Digital)" Option "dpms" Option "RightOf" "Panel-1" EndSection Section "Screen" Identifier "Default Screen" Device "ATI Radeon" # Monitor "Panel-1" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 # big virtual screen to place the monitors Virtual 2560 1024 EndSubSection EndSection -------------------------------------------------------------------- There is no error message in Xorg.log but an information: Any help greatly appreciated. (==) No monitor specified for screen "Default Screen". Using a default monitor configuration. If I add a monitor option it makes no difference. Peter -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list