Im installing dual boot ubuntu 13.10 along win8.1, I have an acer aspire 522 with a graphics card AMD Radeon HD 8400, this graphic card gives problems, soy I installed it with the nomodeset in the edit options, but when I boot the system, I should go and run the safe graphics mode to install the catalyst drivers un go to the amd drivers web, but when I run the safe mode, happens this: link, is this normal?
I had the exact same problem trying to run Ubuntu 13.10 with a AMD/ATI graphics card. I tried all the tricks that the helpful Ubuntu users had to offer, but none of it helped. Safe graphics mode, no splash, nodemodeset, only login to terminal to remove drivers, but none of it helped.
What gave me the error was that i clicked the "Install 3rd party proprietary drivers" when it was recommended by Ubuntu. I reinstalled Ubuntu and just went with the open source drivers instead, and have no problems now.
If you have "nothing to lose" or just did a fresh install anyway, you could try to do a reinstall as well and go with open source drivers.