PS3 ubuntu + IN-OS Resolution

[wolverin0]

all tutorials involve TV resolution, but what about ubuntu? I mean, I have xres 612 and yres 430 for my SDTV, no black borders (except for a bit from lower and right, how can i center the screen also? so i dont miss that tiny, but precious space) thats the complete screen resolution, but what about ubuntu? like in windows > screen properties > configuration > res : 1280x1024 (for example)

i thought it was editing "xorg.conf" from X11 folder, but i edited it with this code (just because i saw many resolutions):

Code: Select all

Section "Files"
    FontPath    "/usr/share/X11/fonts/misc"
    FontPath    "/usr/share/X11/fonts/cyrillic"
    FontPath    "/usr/share/X11/fonts/100dpi/:unscaled"
    FontPath    "/usr/share/X11/fonts/75dpi/:unscaled"
    FontPath    "/usr/share/X11/fonts/Type1"
    FontPath    "/usr/share/X11/fonts/100dpi"
    FontPath    "/usr/share/X11/fonts/75dpi"
    FontPath    "/usr/share/fonts/X11/misc"
    # path to defoma fonts
    FontPath    "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection
 
Section "Module"
    Load    "bitmap"
    Load    "ddc"
    Load    "dri"
    Load    "extmod"
    Load    "freetype"
    Load    "glx"
    Load    "int10"
    Load    "type1"
    Load    "vbe"
EndSection
 
Section "InputDevice"
    Identifier    "Generic Keyboard"
    Driver        "kbd"
    Option        "CoreKeyboard"
    Option        "XkbRules"    "xorg"
    Option        "XkbModel"    "pc105"
    Option        "XkbLayout"    "us"
    Option        "XkbOptions"    "lv3:ralt_switch"
EndSection
 
Section "InputDevice"
    Identifier    "Configured Mouse"
    Driver        "mouse"
    Option        "CorePointer"
    Option        "Device"        "/dev/input/mice"
    Option        "Protocol"        "ExplorerPS/2"
    Option        "ZAxisMapping"        "4 5"
EndSection
 
Section "InputDevice"
  Driver        "wacom"
  Identifier    "stylus"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "stylus"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection
 
Section "InputDevice"
  Driver        "wacom"
  Identifier    "eraser"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "eraser"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection
 
Section "InputDevice"
  Driver        "wacom"
  Identifier    "cursor"
  Option        "Device"        "/dev/wacom"          # Change to 
                                                      # /dev/input/event
                                                      # for USB
  Option        "Type"          "cursor"
  Option        "ForceDevice"   "ISDV4"               # Tablet PC ONLY
EndSection
 
Section "Device"
    Identifier    "Generic Video Card"
    Driver        "fbdev"
 
    Option        "ShadowFB"        "false"
#    Option        "UseFBDev"        "true"
EndSection
 
Section "Monitor"
    Identifier    "Generic Monitor"
    Option        "IgnoreEDID"
    HorizSync    30-90
    VertRefresh    20-150
    ModeLine "720p" 73.825 1280 1320 1368 1640 720 722 724 751 +hsync +vsync
    DisplaySize    320 180
EndSection
 
Section "Screen"
    Identifier    "Default Screen"
    Device        "Generic Video Card"
    Monitor        "Generic Monitor"
    DefaultDepth    24
    DefaultFbBpp    32
 
 
    SubSection "Display"
        Viewport    0    0
        Depth        24
        FbBpp        32
        Modes        "1024x720" "1124x644"
    EndSubSection
 
    SubSection "Display"
        Depth        15
        Modes        "1024x720" "1024x768" "800x600" "640x480"
    EndSubSection
 
    SubSection "Display"
        Depth        16
        Modes        "576x384" "1024x768" "800x600" "640x480"
    EndSubSection
 
EndSection
 
Section "ServerLayout"
    Identifier    "Default Layout"
    Screen        "Default Screen"
    InputDevice    "Generic Keyboard"
    InputDevice    "Configured Mouse"
    InputDevice     "stylus" "SendCoreEvents"
    InputDevice     "cursor" "SendCoreEvents"
    InputDevice     "eraser" "SendCoreEvents"
EndSection
 
Section "DRI"
    Mode    0666
EndSection

in Ubuntu display i just get my 612x430 resolution, i cant choose anything else. (ive already tried just editing from Section "Screen" to the bottom)

thanks in advance, hope someone can help me!
i've already made much progress and learnt a lot of stuff, but i want to have it 100% functionable, because i cant surf with a tiny firefox :(

the only thing that xorg.conf changed, is the ubuntu's login screen, wich now i see very small letters, but when i log, letters and res are like always...

[wolverin0]

anyone please!!!