my name is Matthias. I have a little "big" problem. I have a Packard Bell EasyNote TK 11 BZ with the Video Card AMD Radeon HD 6310 can but not a full HD watch videos with your driver, either on the computer or on Youtube. Thank you. If the one who answers when he speaks German, I beg you to answer in German, this question is translated by Google Translator
In my AMD chipset experience, you will need proprietary drivers and although you have not specified what version of Ubuntu you are running, I can direct you to AMD's driver downloads. The package I used can be found at http://support.amd.com/en-us/download/desktop?os=Linux+x86#amd-catalyst-packages and the newest beta driver is at http://support.amd.com/en-us/kb-articles/Pages/Latest-LINUX-Beta-Driver.aspx as well. Each page lists the necessary requirements; especially make sure your kernel is supported and if you are running 64-bit then make sure 32-bit libraries are installed. I would suggest choosing the first of the links as playing with betas is almost always a bad idea for the average user. Both list the Radeon HD 6000 series as supported. Either download should include a script to run, which opens either a graphical interface or will work in a terminal, I've done both install types successfully.