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Thread: Resolution problems VGA-port

  1. #1
    Join Date
    Nov 2006
    Beans
    33
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Resolution problems VGA-port

    Hi,

    I have just bought a 40" Samsung LCD and would like to connect it to my computer. The only problem is that while I connect it with a VGA cable and then go in to nvidia-settings the maximum resolution that I can set is 640x480. The wired thing is that during the startup and shutdown (while ubuntu is loading) it change into the correct resolution but when the log on screen is shown it has disconnected the TV, then when I try to activate I can't select the correct resolution.

    This is my xorg.conf

    Section "InputDevice"
    Identifier "Generic Keyboard"
    Driver "kbd"
    Option "XkbRules" "xorg"
    Option "XkbModel" "pc105"
    Option "XkbLayout" "se"
    EndSection

    Section "InputDevice"
    Identifier "Configured Mouse"
    Driver "mouse"
    Option "CorePointer"
    EndSection

    Section "InputDevice"
    Identifier "Synaptics Touchpad"
    Driver "synaptics"
    Option "SendCoreEvents" "true"
    Option "Device" "/dev/psaux"
    Option "Protocol" "auto-dev"
    Option "HorizEdgeScroll" "0"
    EndSection

    Section "Device"
    Identifier "Configured Video Device"
    Driver "nvidia"
    Option "NoLogo" "True"
    EndSection

    Section "Monitor"
    Identifier "Configured Monitor"
    EndSection

    Section "Screen"
    Identifier "Default Screen"
    Monitor "Configured Monitor"
    Device "Configured Video Device"
    Defaultdepth 24
    EndSection

    Section "ServerLayout"
    Identifier "Default Layout"
    screen "Default Screen"
    Inputdevice "Synaptics Touchpad"
    EndSection
    Section "Module"
    Load "glx"
    EndSection

  2. #2
    Join Date
    Apr 2008
    Location
    United States
    Beans
    144
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Resolution problems VGA-port

    Well, I know that for standard analog TV, 640 by 480 is the norm. What type of video card do you have? If you don't know, could you type:

    Code:
    lspci | grep VGA
    and post the output here? There is very likely a setting you should be able to change to achieve your required output. Do you know what resolution your tv supports?
    P4HT 3.6ghz/G31T-M motherboard/2 GB DDR2 RAM/nVidia 9600GT 512MB PCI-E/WD5000AAKS 500GB/ST3750528AS 750GB/Ubuntu 10.04/Desktop/Server

  3. #3
    Join Date
    Nov 2006
    Beans
    33
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: Resolution problems VGA-port

    ~$ lspci | grep VGA
    05:00.0 VGA compatible controller: nVidia Corporation GeForce Go 7200 (rev a1)
    The tv name is Samsung LE-40M86BD and I think that the resolution should be 1920x1080 for that model.

  4. #4
    Join Date
    Nov 2006
    Beans
    33
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: Resolution problems VGA-port

    Anyone?

  5. #5
    Join Date
    Apr 2008
    Location
    United States
    Beans
    144
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Resolution problems VGA-port

    Well, i'm just taking guesses here... but have you tried adding resolutions by hand in your xorg.conf? (Back up your xorg.conf before editing it by hand) For instance, under section "Screen" adding something like this: (with resolutions you're sure your tv can support)

    Section "Screen"
    Identifier "Default Screen"
    Device "nVidia"
    Monitor "Generic Monitor"
    Defaultdepth 24
    SubSection "Display"
    Viewport 0 0
    Depth 24
    Modes "1600x1200" "1600x1024" "1440x900" "1400x1050" "1360x768" "1280x1024" "1280x960" "1280x800" "1280x720" "1152x864" "1024x768" "800x600" "640x480"
    EndSubSection
    EndSection
    P4HT 3.6ghz/G31T-M motherboard/2 GB DDR2 RAM/nVidia 9600GT 512MB PCI-E/WD5000AAKS 500GB/ST3750528AS 750GB/Ubuntu 10.04/Desktop/Server

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