(In reply to Takashi Iwai from comment #26) > OK, then the problem is likely i915 driver. It locks up at some point, > either suspend, resume or DPMS on/off. I agree it seems to be the i915 driver. However, to clarify, crashes have only occurred to me on lid close, not open. Whenever the machine has managed to enter suspended state (instead of crashing), it has always resumed correctly.