https://bugs.freedesktop.org/show_bug.cgi?id=43655
--- Comment #21 from Alexandre Demers alexandre.f.demers@gmail.com --- So I'm trying to narrow down what is going on. Kernel 3.5 + patch 64759 works OK. I'm now testing kernel's commit 81ee8fb6b52ec69eeed37fe7943446af1dccecc5 that was supposed to supersede patch 64759 in kernel 3.6. I'll see what I get.
My feeling is we are not saving/restoring an address (VM, VRAM, TTM, whatever) correctly somewhere along the path.