If you do see this regularly and want to test something, please try applying this to your kernel:
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c index a1e8ecb..b9b8917 100644 --- a/drivers/gpu/drm/i915/i915_gem_context.c +++ b/drivers/gpu/drm/i915/i915_gem_context.c @@ -315,7 +315,7 @@ mi_set_context(struct intel_ring_buffer *ring, * explicitly, so we rely on the value at ring init, stored in * itlb_before_ctx_switch. */ - if (IS_GEN6(ring->dev) && ring->itlb_before_ctx_switch) { + if (ring->itlb_before_ctx_switch) { ret = ring->flush(ring, I915_GEM_GPU_DOMAINS, 0); if (ret) return ret; -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1152165 Title: [ivb] GPU lockup IPEHR: 0xffffffff upon context restore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1152165/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs