On Thu, Mar 28, 2013 at 04:35:15PM +0100, zaverel wrote: > Hello, > > i attach > i915_error_state > .zip > > intel_reg_read 0x20d0? => 0x20D0 : 0x0 Whoops, thanks very much for the report! commit 43181692f752f0a552d2e2c76d8379fe16e521cf Author: Chris Wilson <chris at chris-wilson.co.uk> Date: Thu Mar 28 15:41:38 2013 +0000 sna/gen7: Refine is_gt2() for Haswell versus Ivybridge The two similar chipsets do not use the same PCI-ID encoding schema. -Chris -- Chris Wilson, Intel Open Source Technology Centre