Ubuntu 8.04 Hardy

• Useful utilities not install as default - latex
• Acroread

  sudo wget http://www.medibuntu.org/sources.list.d/hardy.list -O /etc/apt/sources.list.d/medibuntu.list
  sudo apt-get update && sudo apt-get install medibuntu-keyring && sudo apt-get update
  sudo apt-get install acroread
     

Configure Dual Screen

• Reference thinkwiki.org/Xorg_RandR
• The resolution of my computer can be checked by

  >/usr/bin/xrandr
  LVDS connected 1440x900+0+0 0mm x 0mm
     1440x900        0.0*+
     

• The company and driver detail can be found here

   cat /var/log/Xorg.0.log
     

• To configure using two screens. We should edit this file. We can either do top and down or do left and right. In this case, we will do left and right. There are two screens we have: LVDS (laptop) 1440x900 and the VGA monitor 1920x1200. The left and right extension means 3360x1200 combined screen size.

    vi /etc/X11/xorg.conf 
  Section "Screen"
          Identifier      "Default Screen"
          Monitor         "Configured Monitor"
          Device          "Configured Video Device"
          DefaultDepth    24
          SubSection "Display"
                  Modes           "1920x1200" "1440x900"
                  Virtual          3360 1200
          EndSubSection
  EndSection
     

• We have to log out or restart Xserver in order to reload the configuration above. Now, we can run commands below in order to activate the change. For some reason, if I connect VGA screen and reboot the laptop, it wil lalso detect DVI1. We have to turn it off and activate VGA1 and set the position with respect to LVDS.

    xrandr --output DVI1 --off
    xrandr --output VGA1 --auto
    xrandr --output VGA1 --right-of LVDS
     

• If we connect VGA and LVDS, the default setting will copy two screens. We can use command below to turn off/on LVDS.

   xrandr --output LVDS --off
   xrandr --output LVDS --auto
     

• What is a LVDS Screen?
  • LVDS stands for Lo Voltage Differental Signaling, this term is not exclusive to LCD's, SCSI applications also use the term as well as other industrys. LVDS in regards to LCD's means that the LCD requires LVDS signal, special chips on both ends of the LCD interconnect cable convert regular signals to LVDS and back again. A LVDS screen contains a on-board LVDS reciever, and a LVDS laptop motherboard contains a LVDS transmitter. More details laptop-loft/faq
  • More about VGA and DVI

Network configuration

• We can use a Broadband Router which provides two functions: Voice over Internet Protocol and Dynamical Domain Name Server service. Such that one

Ekiga Softphone

-- ShihChiehHsu - 31 Aug 2008