this is another person with the same issue, he posted on the XBMC forum. so i'm quoting him here -- http://forum.xbmc.org/showthread.php?tid=174854&pid=1535631#pid1535631 ======================================== Hey, I have installed Ubuntu with XBMC on my machine with an AMD A6-6400K CPU, but my display is flickering on and on. Here are my logs: http://paste.ubuntu.com/6296156/ http://paste.ubuntu.com/6296157/ http://paste.ubuntu.com/6296159/ http://paste.ubuntu.com/6296161/ http://paste.ubuntu.com/6296168/ Thank you fritsch for your help. Greetz, Chris