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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - i915.ko corrupt text lines at top, [drm] GPU HANG: ecode 2:0:0x037fffc1, reason: Ring hung"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96473#c9">Comment # 9</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - i915.ko corrupt text lines at top, [drm] GPU HANG: ecode 2:0:0x037fffc1, reason: Ring hung"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96473">bug 96473</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>384k + offset(fb0 in GTT) ~= 576k, the size of the VGA text console. My guess
is that the VGA planes are not being disabled and through them the BIOS is
obliterating our setup. One quick test would be
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c
b/drivers/gpu/drm/i915/i915_gem_stolen.c
index e9cd82290408..fe8cfb027199 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -411,6 +411,8 @@ int i915_gem_init_stolen(struct drm_device *dev)
}
#endif
+ return 0;
+
if (ggtt->stolen_size == 0)
return 0;</pre>
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