There are at least two threads active talking about F12 X11 woes. I dont want to hijack either, but Im having similar problems, so I will start a third thread, and hope the readers of the other two will jump in. With F11 everything is fine, with F12 I only get 800x600 resolution. I have various Nvidia cards (NV43 - GeForce 6600, NV44 GeForce 6200LE), various Intel CPUs (Pentium4, Intel Core 2), so the only common variable is the nvidia drivers nv / nouveau. The machines are connected to the Samsung 930B Flat Screen Monitor thru a ConnectGear KVM . Thru the F11 machine I see --- [root@deneb reg]# xrandr Screen 0: minimum 320 x 240, current 1280 x 1024, maximum 1280 x 1024 default connected 1280x1024+0+0 0mm x 0mm 1280x1024 60.0* 1024x768 60.0 800x600 60.0 640x480 60.0 1280x960 60.0 700x525 60.0 640x512 60.0 512x384 60.0 400x300 60.0 320x240 60.0 --- Thru the F12 machine I see: --- [root@mythtv-fe proc]# xrandr Screen 0: minimum 320 x 200, current 800 x 600, maximum 4096 x 4096 VGA-0 connected 800x600+0+0 (normal left inverted right x axis y axis) 0mm x 0mm 800x600 60.3* 56.2 640x480 59.9 DVI-I-0 disconnected (normal left inverted right x axis y axis) --- My xorg.conf reads: [root@mythtv-fe X11]# more xorg.conf Section "ServerLayout" Identifier "Default Layout" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" FontPath "unix/:7100" EndSection Section "Module" Load "dbe" Load "extmod" Load "fbdevhw" Load "glx" Load "record" Load "freetype" Load "type1" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" Option "XkbModel" "pc105" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "IMPS/2" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5" Option "Emulate3Buttons" "yes" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Samsung" ModelName "SyncMaster 930B" # Resolution is 1280x1024 @ 60 or 75Hz. # Max Pixel Clock is 140MHz. HorizSync 30.0 - 81.0 VertRefresh 56.0 - 75.0 DisplaySize 376 301 Option "dpms" EndSection Section "Device" Identifier "Videocard0" # Driver "nv" Driver "nouveau" VendorName "Videocard vendor" BoardName "NVIDIA GeForce 6600" EndSection Section "Screen" Identifier "Screen0" Device "Videocard0" Monitor "Monitor0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubSection EndSection --- I have no idea what to try next. I am telling the driver what the range of HorizSync/VertReresh rates is, so I dont see why its not believing me. and I have no idea what to make of the xrandr output from the F12 machine. Comments? Reg.Clemens reg@xxxxxxx -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines