https://bugs.freedesktop.org/show_bug.cgi?id=73848
--- Comment #8 from Thomas Lindroth thomas.lindroth@gmail.com --- Created attachment 92681 --> https://bugs.freedesktop.org/attachment.cgi?id=92681&action=edit xorg.log with EDID
I also experience problems related to this but in my case the situation is revered. Kernel 3.12 works fine but 3.13 gives me a blank screen on my HDMI head. Booting 3.13 with radeon.audio=0 solves the problem. There are no warnings in dmesg or Xorg.log. My card is a Juniper HD6770.