Hello, I've been having problems with my new monitor, a Samsung SyncMaster 172T, on the DVI output of my nVidia GeForce 3 Ti500 with xfree86 4.3.0. The monitor has duel inputs, analog and digital, but I'd like to, if possible, use the DVI input. It functions adequately using the vesa driver, limited to 1024x786. I'd like to be able to use nVidia's binary driver, nvidia, or at least the nv driver. When I try to use the nv driver, the screen will go blank and flash slightly, eventually the led on the LCD will begin to flash, and I have to press Ctrl+Alt+BackSpace to drop out of X. Similar behavior is observed using the nvidia driver. I've been looking around for advice, including this list's archives, and have integrated that advice into my XFree86Config file. I've attached it, with the added/modified lines highlighted. None of them have seemed to made an impact on this particular problem however. On the Samsung website, the horizontal sync range for 'digital' is 30-63 and the vertical sync range is 56-75. >>SNIP>> Section "Module" Load "dbe" SubSection "extmod" Option "omit xfree86-dga" EndSubSection Load "type1" Load "speedo" Load "glx" EndSection Section "Files" RgbPath "/usr/X11R6/lib/X11/rgb" FontPath "/usr/X11R6/lib/X11/fonts/local/" FontPath "/usr/X11R6/lib/X11/fonts/misc/" FontPath "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled" FontPath "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled" FontPath "/usr/X11R6/lib/X11/fonts/Speedo/" FontPath "/usr/X11R6/lib/X11/fonts/Type1/" FontPath "/usr/X11R6/lib/X11/fonts/75dpi/" FontPath "/usr/X11R6/lib/X11/fonts/100dpi/" EndSection Section "ServerFlags" EndSection Section "InputDevice" Identifier "Keyboard1" Driver "Keyboard" Option "AutoRepeat" "500 30" Option "XkbRules" "xfree86" Option "XkbModel" "pc101" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Mouse1" Driver "mouse" Option "Protocol" "IMPS/2" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5" EndSection Section "Monitor" Identifier "Samsung SyncMaster 172T" HorizSync 30-63 VertRefresh 56-75 EndSection Section "Device" Identifier "Standard VGA" VendorName "Unknown" BoardName "Unknown" Driver "vga" EndSection Section "Device" Identifier "nVidia GeForce 3 Ti500" Driver "nvidia" Option "FlatPanel" <-- ADDED Option "CrtcNumber" "1" <-- ADDED EndSection Section "Screen" Identifier "Screen 1" Device "nVidia GeForce 3 Ti500" Monitor "Samsung SyncMaster 172T" DefaultDepth 24 Subsection "Display" Depth 8 Modes "1024x768" "800x600" "640x480" ViewPort 0 0 EndSubsection Subsection "Display" Depth 16 Modes "1024x768" "800x600" "640x480" ViewPort 0 0 EndSubsection Subsection "Display" Depth 24 Modes "1280x1024" "1024x768" "800x600" "640x480" ViewPort 0 0 EndSubsection EndSection Section "ServerLayout" Identifier "Simple Layout" Screen "Screen 1" InputDevice "Mouse1" "CorePointer" InputDevice "Keyboard1" "CoreKeyboard" EndSection <<SNIP<< If the log would also be helpful, I will gladly send that as well. Thank you very much! Regards, Colin cbortner@xxxxxxxxxxxxxxxxxx _______________________________________________ XFree86 mailing list XFree86@xxxxxxxxxxx http://XFree86.Org/mailman/listinfo/xfree86