If you want to get all the BIOS information in Ubuntu, there is a handy terminal command you can use.
dmidecode - According to the manual, dmidecode is a tool for dumping a computer's DMI (some say SMBIOS) table contents in a human-readable format. Information such as serial numbers and BIOS revision. Thanks to this table, you can retrieve this information without having to probe for the actual hardware. While this is a good point in terms of report speed and safeness, this also makes the presented information possibly unreliable.
You need to first install dmidecode in your Ubuntu system to get the BIOS information. Use the following command:
sudo apt-get install dmidecode - It will ask for your root password.
Also, to get the other BIOS releated information, use the command sudo biosdecode. It will display the structure of your BIOS along with several other informations like Router ID, OEM identifier, No of structures and max structure size.
ambarish@ambarish-ubuntu:/dev$ sudo biosdecode
# biosdecode 2.12
ACPI 2.0 present.
OEM Identifier: VBOX
RSD Table 32-bit Address: 0x7FFF0000
XSD Table 64-bit Address: 0x000000007FFF0030
BIOS32 Service Directory present.
Calling Interface Address: 0x000FDA00
PCI Interrupt Routing 1.0 present.
Router ID: 00:01.0
Exclusive IRQs: None
Compatible Router: 8086:7000
Slot Entry 1: ID 00:01, on-board
Slot Entry 2: ID 00:02, slot number 1
Slot Entry 30: ID 00:1e, slot number 29 SMBIOS 2.5 present.
A major kernel update has been released from Canonical for Ubuntu 14.04 Trusty Tahr where about 13 vulnerabilities that has been discovered by developers and hackers have been patched. Canonical has asked the Ubuntu users running Trusty Tahr LTS to update their system immediately.
Updating your kernel package to linux-image-3.13.0-83 (3.13.0-83.127), linux-image-3.16.0-67 (3.16.0-67.87~14.04.1), linux-image-3.19.0-56 (3.19.0-56.62~14.04.1), or linux-image-4.2.0-34 (4.2.0-34.39~14.04.1) will ensure these patches.
You can update your kernel by following these steps.
Open Unity Dash > Software updater and run the application. It will check for the updates that are available for your system.
Once done, it will notify you the updates available and will ask you for update along with the size of files needed to be download. I have started the update to be installed and as you can see below, linux-image-22.214.171.124-generic is being downloaded and installed in my Ubuntu 14.04 which contains this Kernel patch.
You can also update Kernel from the pre packaged kernel available via ppa:
Ubuntu Kernel Team Daily Build PPA - this PPA typically contains experimental packages. The quality of these packages is such that you had better know what you're doing. Don't come crying to the kernel team if it kills all of your kittens.
More info: https://launchpad.net/~kernel-ppa/+archive/ubuntu/ppa
Press [ENTER] to continue or ctrl-c to cancel adding it
sudo apt-get update
sudo apt-get upgrade
and you are done.
Some of the third party modules may need to be built again, after the kernel update. Have you updated your Kernel?
If you have a series of photographs/images which you want to use as your Desktop Wallpaper as a slideshow in Ubuntu, you will need to have Shotwell - an application that is installed by default in Ubuntu.
Login in to your Ubuntu system and search for Shotwell in Ubuntu.
Navigate to File > Import from a folder, and select the images you want to set as desktop background in slideshow.
Once you have imported, select the pictures from the collection.
Now navigate to File > Set as Desktop Slideshow. It will ask for the time duration for which you want to set one particular image. Select according to your preference and you are done.
Variety - for creating desktop wallpaper slideshows in Ubuntu/Linux
There is another open source application for changing wallpaper in Linux named Variety. It is packed with great features and is easy to use. The advantage of Variety over the Shotwell is that not only you can create wallpaper slideshows from your local images, but also from online sources and allows you to rotate them on a regular intervals and provides easy ways to separate nice images from the junk. It also can display a nice digital clock.