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IDProjectCategoryView StatusLast Update
0001476T99X171.00 SKB EagleVOCpublic2025-04-07 09:57
Reporter(ALTech) Younkwang Jung Assigned To(SW) Willin Deng Due Date
PriorityhighSeveritys4-minorReproducibilityhave not tried
Status closedResolutionnot a bug 
Summary0001476: [Smart3][VoC] About HDMI log ( hdcp_tx22/host_lib/esm_host_lib_auth.c )
DescriptionHi Kerwin

"No input signal" issue has become the most important issue.
So SKB/AML are reviewing the contents of HDMI JIRA.

Please check the contents of Jira below.
https://jira.skbroadband.com/browse/BTFAML-1100

The AML FAE says that the log below occurs only in FXN models.
================================================================================
..
01-11 10:34:45.857 E 19296 19296 hdcp_tx22: <ERROR>:[hardware/amlogic/hdcp_tx22/host_lib/esm_host_lib_auth.c/171]
01-11 10:34:45.857 I 19296 19296 hdcp_tx22: [TX] Capability check failed: -662. Retrying...
01-11 10:34:45.863 I 19296 19296 hdcp_tx22: [ESM] SYSTEM_RESET
01-11 10:34:45.863 I 19296 19296 hdcp_tx22: [ESM] RESET COMPLETE
01-11 10:34:45.863 I 19296 19296 hdcp_tx22: [ESM] COMM RD-NAK
01-11 10:34:46.263 I 19296 19296 hdcp_tx22: [TX] enable low value content
01-11 10:34:46.463 E 19296 19296 hdcp_tx22: <ERROR>:[hardware/amlogic/hdcp_tx22/host_lib/esm_host_lib_auth.c/171]
01-11 10:34:46.464 I 19296 19296 hdcp_tx22: [TX] Capability check failed: -662. Retrying...
01-11 10:34:46.470 I 19296 19296 hdcp_tx22: [ESM] SYSTEM_RESET
01-11 10:34:46.470 I 19296 19296 hdcp_tx22: [ESM] RESET COMPLETE
..
=================================================================================

The reproduction step is
1) Connect Smart3 STB to TV (Samsung TV Model) (both on)
2) Change TV (Samsung Model) to Off state
   The log is observed.

Please check why this log is observed only in FXN model when TV(SAMSUNG) is turn off.

Thank you
YK.Jung
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Users monitoring this issue

User List (ALTech) JunGyu Kim , (ALTech) SY Yoon , (SW) Brent Choi

Activities

(SW) Kerwin Chen

2022-05-13 11:49

developer   ~0010022

Last edited: 2022-05-13 13:35

Hi YK,

Please check replies below:
1. 'hdcp_tx22' is a binary file, there is no source code in AML SDK.
We don't know why the message keep printing while TV is off.
From the messages, I guess 'hdcp_tx22' is trying to do re-authentication with TV but no response since TV is off.
In STB side, HDMI Plug Detection (HPD) is asserted by TV.
So STB doesn't know TV is off until HDMI cable is plug out.

2. I have tried this issue on Android 11, the same log is seen. (the same hdcp_tx22, version '20201211', v03.04d1 )
I think the messages doesn't have big impact.
However, if SKB want to change behavior, we should ask AML for suggestions.

3. I don't know why messages are not seen on other ODM platform.
We have no idea about their modification on AML's SDK.

Thank you !

(ALTech) Younkwang Jung

2022-05-13 12:49

developer   ~0010025

Hi Kerwin

Then can you check if this symptom also occurs in the Amlogic reference as well ?

Thank you
YK.Jung

(SW) Kerwin Chen

2022-05-13 13:35

developer   ~0010027

Hi YK,

As I know, there is no HDCP key on Amlogic reference board.
So the result may be different and not comparable.
I don't have Amlogic reference board now because I work from home during this week.
If you need to know the result, I will do it on next Monday.

Thank you.

(SW) Kerwin Chen

2025-04-07 09:57

developer   ~0017412

no activity for this issue

Issue History

Date Modified Username Field Change
2022-05-12 15:47 (ALTech) Younkwang Jung New Issue
2022-05-12 15:47 (ALTech) Younkwang Jung Status new => assigned
2022-05-12 15:47 (ALTech) Younkwang Jung Assigned To => (SW) Kerwin Chen
2022-05-12 15:48 (ALTech) Younkwang Jung Issue Monitored: (ALTech) SY Yoon
2022-05-12 15:48 (ALTech) Younkwang Jung Issue Monitored: (ALTech) JunGyu Kim
2022-05-12 15:48 (ALTech) Younkwang Jung Issue Monitored: (SW) Brent Choi
2022-05-13 11:49 (SW) Kerwin Chen Note Added: 0010022
2022-05-13 11:49 (SW) Kerwin Chen Assigned To (SW) Kerwin Chen => (ALTech) Younkwang Jung
2022-05-13 11:49 (SW) Kerwin Chen Status assigned => acknowledged
2022-05-13 12:49 (ALTech) Younkwang Jung Note Added: 0010025
2022-05-13 13:35 (SW) Kerwin Chen Note Added: 0010027
2022-05-13 13:35 (SW) Kerwin Chen Note Edited: 0010022
2025-04-07 09:57 (SW) Kerwin Chen Assigned To (ALTech) Younkwang Jung => (SW) Willin Deng
2025-04-07 09:57 (SW) Kerwin Chen Status acknowledged => closed
2025-04-07 09:57 (SW) Kerwin Chen Resolution open => not a bug
2025-04-07 09:57 (SW) Kerwin Chen Note Added: 0017412