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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [Bisected Regression] Blank screen from boot until any input on X"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91952#c7">Comment # 7</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO - [Bisected Regression] Blank screen from boot until any input on X"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91952">bug 91952</a>
from <span class="vcard"><a class="email" href="mailto:jprvita@gmail.com" title="João Paulo Rechi Vita <jprvita@gmail.com>"> <span class="fn">João Paulo Rechi Vita</span></a>
</span></b>
<pre>I've tested the following diff provided by Maarten on top of v4.2 with no
success:
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index a387b7db1970..2ba6f10eeca7 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2570,6 +2570,11 @@ intel_find_initial_plane_obj(struct intel_crtc
*intel_crtc,
kfree(plane_config->fb);
+ if (!drm_mm_initialized(&dev_priv->mm.stolen)) {
+ to_intel_plane(primary)->disable_plane(primary,
&intel_crtc->base,
true);
+ return;
+ }
+
/*
* Failed to alloc the obj, check to see if we should share
* an fb with another CRTC instead
I'm going to attach a dmesg log with drm.debug=0x1e as requested on IRC.</pre>
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