On Wed, Nov 16, 2011 at 15:24, Andrew Lutomirski <luto at mit.edu> wrote: > AFAICT my snb laptop has always been stable with semaphores and VT-d > enabled. Is this problem possibly restricted to just desktop > machines? I'm happy to test, since my box that can reproduce the hang > instantly is still around. > I cannot reproduce those issues on any mobile SNB, but I am out of desktop ones. So perhaps it is a clue. Jesse, Keith, Daniel, what if we add something like: ... .has_semaphores=1, .has_rc6=1 ... to i915_drv.c intel_sandybridge_m_info, and take them into account when using default values for those settings? -- Eugeni Dodonov <http://eugeni.dodonov.net/> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20111116/81d8db63/attachment.htm>