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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [GLK] Crash when switching to framebuffer"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102889#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [GLK] Crash when switching to framebuffer"
href="https://bugs.freedesktop.org/show_bug.cgi?id=102889">bug 102889</a>
from <span class="vcard"><a class="email" href="mailto:imre.deak@intel.com" title="Imre Deak <imre.deak@intel.com>"> <span class="fn">Imre Deak</span></a>
</span></b>
<pre>VBT says to init HDMI on port A, but this isn't supported anywhere AFAICS.
Could you try the following?:
diff --git a/drivers/gpu/drm/i915/intel_ddi.c
b/drivers/gpu/drm/i915/intel_ddi.c
index 93cbbcbbc193..dcb16865b411 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2675,6 +2675,11 @@ void intel_ddi_init(struct drm_i915_private *dev_priv,
enum port port)
DRM_DEBUG_KMS("VBT says port %c has lspcon\n",
port_name(port));
}
+ if (port == PORT_A && init_hdmi) {
+ DRM_DEBUG_KMS("Overriding VBT to disable HDMI on port A\n");
+ init_hdmi = false;
+ }
+
if (!init_dp && !init_hdmi) {
DRM_DEBUG_KMS("VBT says port %c is not DVI/HDMI/DP compatible,
respect it\n",
port_name(port));</pre>
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