ubuntu 12.04

I just bought a new Dell Inspiron 15 3521 with Ubuntu 12.04 LTS preloaded (i3 and 4gb ram). Now I am having a few problems with my OS which I am listing as following 1. Whenever I hibernate the system and restart it later, I get a blank screen. 2. On restarting the system, sound is muted by...

Yesterday I have install Ubuntu 12.04 . after restart , I have seen different type of boot menu. present in Ubuntu 12.04 But in case Ubuntu 10.4 , there was a different type , means black & white. previous in Ubuntu 10.04 my question is there any procedure to change my...

I have been using Ubuntu on a netbook for about 2 weeks now :-D I have done most of the simpler performance tweaks, but i really want to try more. This is NOT the first time i am using Ubuntu. I have used Ubuntu, Mint and OpenSuse in the past few years, however they were almost always a...

I want to install Ubuntu 12.04 on my netbook. I created the bootable drive on a laptop using unetbootin and also with two other tools. However in every case when i plug it in my laptop, and boot from it it says "error: prefix is not set" and then garbage comes on the screen. My netbook came...