[Bug 74103] [IVB/HSW/BDW Regression]black screen and system hang after booting with all display port

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=74103

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
Spotted by Ville:

diff --git a/drivers/gpu/drm/i915/i915_gem_context.c
b/drivers/gpu/drm/i915/i915_gem_context.c
index 310370d..fb64ab4 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -290,7 +290,7 @@ i915_gem_create_context(struct drm_device *dev,
                                goto err_unpin;
                        }

-                       ctx->vm = &dev_priv->mm.aliasing_ppgtt->base;
+                       dev_priv->mm.aliasing_ppgtt = ppgtt;
                }
        } else if (USES_ALIASING_PPGTT(dev)) {
                /* For platforms which only have aliasing PPGTT, we fake the

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