[Bug 80151] [GM965/GL960 bisected regression] black screen on boot

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=80151

--- Comment #6 from Jesse Barnes <jbarnes at virtuousgeek.org> ---
A patch to try after collecting the dmesg:

index 6441178..e849e5d 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -231,7 +231,7 @@ int i915_gem_init_stolen(struct drm_device *dev)
        DRM_DEBUG_KMS("found %zd bytes of stolen memory at %08lx\n",
                      dev_priv->gtt.stolen_size, dev_priv->mm.stolen_base);

-       if (IS_VALLEYVIEW(dev))
+       if (IS_VALLEYVIEW(dev) || 1)
                bios_reserved = 1024*1024; /* top 1M on VLV/BYT */

        if (WARN_ON(bios_reserved > dev_priv->gtt.stolen_size))

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