How do You Install XvidCap on uBuntu 12.04 Distro

Xvidcap is a small tool to capture things going on on an X-Windows display to either individual frames or an MPEG video. This software is not present in the Ubuntu 12.04 repository by default. You can get a copy of the distributed binary in the form of a .deb package at the following link.

https://launchpad.net/ubuntu/precise/amd64/xvidcap/

Once you download this package, go ahead and install the package with the following command. The amd64 package given as example is for 64 bit machine.

$ sudo dpkg -i xvidcap_1.1.7-0.2ubuntu12_amd64

In case if the above command fails giving out errors, please note that Xvidcap depends on libavdevice-extra-53 package. So go ahead and install this package first with the following command.

$ sudo  apt-get install libavdevice-extra-53

By default, the Ubuntu 12.04 comes with libavcodec53 package. This conflicts with the  libavdevice-extra-53. In such a case, feel free to go ahead and replace the libavcodec53 package with libavdevice-extra-53. This satisfies the dependency requirement for Xvidcap.

Once done with setting dependencies, you can then install the Xvidcap package.

This is another posting showing "how to do computing" for everyday computer usages... For a general public 

How to Disable Guest Account Login on Ubuntu

By default ubuntu 12.04 comes with guest account.You can disable this account using the following procedure.Guest account is a paswordless account which allow users to get access to Ubuntu machine

Open /etc/lightdm/lightdm.conf file from your terminal using the following command

gksudo gedit /etc/lightdm/lightdm.conf

Add the following line

allow-guest=false

Save and exit the file

After adding the above line you should see similar to the following in lightdm.conf file

[SeatDefaults]
user-session=ubuntu
greeter-session=unity-greeter
allow-guest=false

Finally you have to restart lightdm using the following command from your terminal

sudo restart lightdm

Note:- After executing above command all graphical programs running will be close

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