LTS Hardware Enablement Stack
In an effort to support a wider variety of hardware on an existing LTS release, the 14.04.2 point release will ship with an updated kernel and X stack by default. This newer hardware enablement stack will be comprised of the kernel and X stack from the Utopic 14.10 release. Those running virtual or cloud images should not need this newer hardware enablement stack and thus it is recommended they remain on the original Trusty stack. To remain on the original Trusty stack, there are a few options:
Anyone wishing to opt into the hardware enablement stack for Trusty may do so by running following command which will install the linux-generic-lts-utopic and xserver-xorg-lts-utopic packages:
sudo apt-get install linux-generic-lts-utopic xserver-xorg-lts-utopic libegl1-mesa-drivers-lts-utopic xserver-xorg-video-all-lts-utopic xserver-xorg-input-all-lts-utopic
If you are on an amd64 system that boots with UEFI, you will also need the matching signed kernel:
sudo apt-get install linux-signed-generic-lts-utopic
For anyone interested, the specifics regarding the exact policies and procedures regarding the support, maintenance, and upgrade paths for the hardware enablement stack has been documented at the following location:
Error:
The following packages have unmet dependencies:
unity-control-center : Depends: libcheese-gtk23 (>= 3.4.0) but it is not going to be installed
Depends: libcheese7 (>= 3.0.1) but it is not going to be installed
you may need to install ppa-purge first.
sudo add-apt-repository ppa:xorg-edgers/ppa && sudo apt-get update
sudo ppa-purge ppa:xorg-edgers/ppa && sudo apt-get update
You don't have to install xserver-xorg-dev
refer: https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes
To install,
check this out
http://wiki.cchtml.com/index.php/Ubuntu_Trusty_Installation_Guide#Before_you_start