F11 ok, Only 800x600 video with F12.

Jim mickeyboa at sbcglobal.net
Tue Feb 9 21:00:09 UTC 2010


On 02/09/2010 03:16 PM, reg at dwf.com wrote:
> 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 at 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 at 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 at 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 at dwf.com
>
>
>    
Do a lsmod and see what driver module is loading , nv or Nvidia ?
And the you will have to do a edit on your /boot/grub/menu.lst and after:

example;
kernel /boot/vmlinuz-2.6.31.9-174.fc12.x86_64 ro 
root=UUID=db7da871-8b5c-4ad9-8e9b-d7801cb4b492  LANG=en_US.UTF-8 
SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=us rhgb quiet 
nv.modeset=0 vga=318

and at the end where you see rhgb quiet put the nv,modeset=0 vga=?    
the resolution you want to set from chart below, as you noticed I set 
mine vga-318 or 1024x768


1600x1200 - 346
1280x1024 - 31B
1400x1050 - 348
1024x768 - 318
800x600 - 315



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