So, i reinstall my ubuntu and decided to go with a somewhat new distribution called Elementary OS. Everything works fine except that my Logitech Mouse is not working. It kinds of feel like the mouse is not pair with my Unify receiver.Here is the solution i found and seemd to work like a charm.
First thing first, get your terminal window out and throw in the below codes:
sudo apt-get install git gcc
git clone https://git.lekensteyn.nl/ltunify.git
After that, you should be able to find your ltunify in $Home/bin/ltunify. Next thingyou need to do is redirect to this folder and run: ./ltunify pair The program will probably ask you to turn on and off of your mouse to pair with your Logitech USB receiver. After that, start enjoy your logitech and ubuntu! I found it also useful by installing a graphic UI program to manage your unify receiver. This App is call "Solaar". Go to your software center. (You can just click the left corner and type in "software" to search for software center.) After you launch the software center APP, click on the "Edit" and select "software source". Navigate to "Other software". Click on "Add..." button, then add following
ppa:daniel.pavel/solaarAfter doing so, you will need to go to your terminal window and do a "sudo apt-get update". Then you can just type in command "sudo apt-get install solaar". Once everything is done. you will be able to search for your "solaar" in your application menu. This program will provide you some possible features provided by your unify receiveras well as the mouse battery level. (This could come in handy if you need to know if you possibly need to change your battery soon or if it still can last a while.)