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Kiranraj
Asked: 2012-06-13 16:33:41 +0800 CST

How do I configure a Flatron L177WSB for 1440x900?

  • 772

I am using ubuntu 12.04 with Nvidia Geforce 6150SR graphic card.In 12.04 Ubuntu does not recognize a screen resolution 1440x900 for my monitor "Flatron L177WSB".I tried this method,but not working.It fails from 5th step. Terminal shows

Failed to get size of gamma for output default

I am using AMD athlon 64x2,1GB memory.

nvidia

4 Answers

  1. Best Answer

    I had the same problem as you, normaly this is caused by a problem with X.org reading the EDID file from your monitor with the resolutions...

    The solution is to edit the /etc/X11/xorg.conf file like this :

    If you don't have this file then you have to create it from scratch, just let the Nvidia software do it for you using this command on the terminal :

    sudo nvidia-xconfig

    If you already have an xorg.conf file, then you'll just have to edit (or create one if he doesn't exist), as root, like this:

    gksu gedit /etc/X11/xorg.conf

    And copy this lines on the "Section Device":

        Option         "UseEDID" "true"
    Option         "IgnoreEDIDChecksum" "CRT,DFP,TV"

    If you are using and HDMI cable (for example), and the image is not scaled then add this line just after the other ones:

        Option         "FlatPanelProperties" "Scaling = Native"

    Now just logout and login again, Open the "Nvidia X Server Settings" and see if all the resolutions available by your display are available.

    I hope this helps.

    • 3

  2. I am assuming you install the Proprietary drivers or even have the Nvidia PPA (x-swat). So with that in mind I can offer the following help:

    What I would suggest is to first delete the monitors.xml file that should solve some resolution problems. The file can be found in ~/.config. Or go to a terminal and type sudo rm -fr ~/.config/monitors.xml

    Now restart to see if it shows the resolution you want.

    If the problem persists open the nvidia-settings GUI program. Go to dash an type nvidia, you should see the nvidia settings program. Open it and look for the resolution option in there. Test it out.

    UPDATE: If you want monitors.xml back, here is mine, you can change the lines to fit your resolution:

    <monitors version="1">
  <configuration>
      <clone>no</clone>
      <output name="default">
          <vendor>???</vendor>
          <product>0x0000</product>
          <serial>0x00000000</serial>
          <width>1680</width>
          <height>1050</height>
          <rate>56</rate>
          <x>0</x>
          <y>0</y>
          <rotation>normal</rotation>
          <reflect_x>no</reflect_x>
          <reflect_y>no</reflect_y>
          <primary>yes</primary>
      </output>
  </configuration>
</monitors>
    • 2

    1. open the NVIDIA X Server Settings and select the "X Server Display Configuration".

    2. Click "Save toX Configuration File" and Check the path is "/etc/X11/xorg.conf"

    3. Modify here as you need.

      Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "CRT: nvidia-auto-select +1920+180, DFP: nvidia-auto-select +0+0"
    SubSection     "Display"
    Depth           24
    EndSubSection
EndSection

      from

      nvidia-auto-select

      to

      1440x900_60

    4. logout & login

    • 1

  4. Have you tried obtaining your drivers from the nvidia site? Nvidia

    • 0