In this picture the output states that 1) KMS (=kernel modesetting) is not supported 2) KMS is required
Perhaps a newer Linux-libre kernel would solve that problem, you can get one e.g. from http://jxself.org/linux-libre/
first, sudo nano /etc/apt/sources.list and add the mentioned deb line, ctrl+X to exit and yes save modified and use the same file name
wget http://linux-libre.fsfla.org/pub/linux-libre/freesh/archive-key.asc sudo apt-key add archive-key.asc sudo apt-get update and finally sudo apt-get install linux-libre64 then reboot to see if all that was for nothing.
