On Thu, Apr 4, 2013 at 11:53 PM, George Amanakis <g_amanakis at yahoo.com> wrote: > Compiled und run the kernel as you instructed. > Although the GPU did hang momentarily the dmesg showed no abnormalities. Can you please explain in more detail what you mean by "did hang momentarily"? If it's a real gpu hang it should be stuck until the kernel resets the gpu, which will result in some dmesg noise. I'm a bit at loss here what's going wrong ... -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch