https://bugs.freedesktop.org/show_bug.cgi?id=106159
--- Comment #8 from Joel Sass sass.joel@gmail.com --- Alright! First, I appreciate the help with this.
I decided to just roll with what I was being given and roll the kernel after applying the patches you'd recommended. I downloaded the newest unstable source this morning from here: git://kernel.ubuntu.com/ubuntu/unstable.git
did a make menuconfig to make sure that amdgpu.dc was included, along with custom processor flags for new core2/xeon processors, and then applied the patches you'd mentioned. Sadly, neither of them were verbatim because I've taken too long to get back to working on this, so I had to apply them manually.
You'll find my diff patches attached. Nothing overtly different.
I'm going to start compiling this, and then go to lunch. Thanks!