Bug 110325

Summary: [CI][DRMTIP] igt@kms_content_protection@* - fail - Content Protection not enabled, Timed out waiting for Ri prime match
Product: DRI Reporter: Martin Peres <martin.peres>
Component: DRM/IntelAssignee: Ramalingam C <ramalingam.c>
Status: RESOLVED NOTOURBUG QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: DRI git   
Hardware: Other   
OS: All   
Whiteboard: ReadyForDev
i915 platform: ICL, SKL i915 features: display/HDCP

Description Martin Peres 2019-04-04 12:42:08 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_247/fi-skl-gvtdvm/igt@kms_content_protection@atomic.html

<7> [48.671022] [drm:_intel_hdcp_enable [i915]] [HDMI-A-1:85] HDCP is being enabled...
<7> [48.986235] [drm:intel_hdcp_auth [i915]] Timed out waiting for Ri prime match (50000)
<7> [48.986666] [drm:_intel_hdcp_enable [i915]] HDCP Auth failure (-110)
<7> [48.986795] [drm:_intel_hdcp_disable [i915]] [HDMI-A-1:85] HDCP is being disabled...
<7> [48.987460] [drm:_intel_hdcp_disable [i915]] HDCP is disabled
<7> [49.323389] [drm:intel_hdcp_auth [i915]] Timed out waiting for Ri prime match (50000)
<7> [49.323454] [drm:_intel_hdcp_enable [i915]] HDCP Auth failure (-110)
<7> [49.323549] [drm:_intel_hdcp_disable [i915]] [HDMI-A-1:85] HDCP is being disabled...
<7> [49.323674] [drm:_intel_hdcp_disable [i915]] HDCP is disabled
<7> [49.642432] [drm:intel_hdcp_auth [i915]] Timed out waiting for Ri prime match (50000)
<7> [49.642473] [drm:_intel_hdcp_enable [i915]] HDCP Auth failure (-110)
<7> [49.642515] [drm:_intel_hdcp_disable [i915]] [HDMI-A-1:85] HDCP is being disabled...
<7> [49.642642] [drm:_intel_hdcp_disable [i915]] HDCP is disabled
<7> [49.642678] [drm:_intel_hdcp_enable [i915]] HDCP authentication failed (3 tries/-110)
Comment 1 CI Bug Log 2019-04-04 12:42:32 UTC 
The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* SKL ICL: igt@kms_content_protection@* - fail - Content Protection not enabled, Timed out waiting for Ri prime match (No new failures associated)
Comment 2 Martin Peres 2019-04-04 13:03:14 UTC 
+ Ram.

Can you check if this is platform- or machine-specific? I'll update the filter based on your feedback.
Comment 3 Ramalingam C 2019-04-04 13:23:49 UTC 
Martin,

This is a failure from the panel to provide the valid Ri Prime. Thanks.
Comment 4 Ramalingam C 2019-04-04 13:29:03 UTC 
(In reply to Ramalingam C from comment #3)
> Martin,
> 
> This is a failure from the panel to provide the valid Ri Prime. Thanks.

I915 can't fix this too.
Comment 5 Ramalingam C 2019-04-11 10:46:14 UTC 
HDCP sink connected to the port is providing the invalid Ri. Hence HDCP authentication is expected fail. So this is not a bug in I915. Thanks

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