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IDProjectCategoryView StatusLast Update
0000817T99X171.00 SKB EagleSW Issuepublic2020-09-28 12:11
Reporter(ALTech) Jason ParkAssigned To(SW) Kerwin Chen Due Date
PrioritynormalSeveritys2-severeReproducibilityhave not tried
Status closedResolutionwon't fix 
Summary0000817: [BFX-AT100] After enable , when AC power off/ on, it happen 'no signal' or noise(several line overally) screen on Special TV.
DescriptionHI Kerwin

we had tested with Several SEC TV for HDMI compatible TEST in SEC company.
it happen Noise screen or 'no signal(external Input)' on special TV when STB power off/on.

Please check a log and give your comment. we will ask it to SEC guy based on your comment.

TV Model : UN49NU8000
TV FW : 1153
STB FW : v15.513.10

Thanks.



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Users monitoring this issue

User List (ALTech) Jason Park , (ALTech) Juyoung Park , (ALTech) SY Yoon

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(ALTech) Jason Park

2020-02-17 14:14

developer  

CEC booting_2(noise).log (3,025,917 bytes)

(SW) Kerwin Chen

2020-02-18 17:34

developer   ~0003361

Hi Jason,

I think you use the same STB, same HDMI cable, same HDMI port, to test against this TV.
The result should be the same.
What are the differences between these 2 cases ?
It will be helpful to check log file.
Thanks !

(ALTech) Jason Park

2020-02-18 17:50

developer   ~0003362

Hi Kerwin

we had tested with same STB, Same HDMI Cable, same HDMI PORT on this TV.

when ac power off/on, An expected result is showing Audio/video in STB.
but one case is shown 'no signal'. second case , it is screen broken issue.

Thanks

(SW) Kerwin Chen

2020-02-18 18:19

developer   ~0003363

Hi Jason,

We see there is HDCP authentication fail in "CEC booting_1(external Input).log".
This is why you see "no signal" on TV.
The timeout value of HDCP authentication is 8sec.
We can extend it to 32sec and release a test image for verification.
Could you help to verify it ?

Thanks !

(ALTech) Jason Park

2020-02-19 10:14

developer   ~0003366

HI Kerwin

Thanks for your comment.
this TV is located in SEC company. so we can't test it again with test FW.
But if you give new fw, I may ask it to SEC guy for testing.

Thanks

(SW) Dixon Chen

2020-02-19 12:08

developer   ~0003369

Hi Jason,

Please use below test FW to verify issue.
https://drive.google.com/drive/folders/1SXeCMCrIvdPgWwqLhGSirIotz--EEF2z?usp=sharing
This is SD image.
Thanks.

(ALTech) Jason Park

2020-02-21 09:18

developer   ~0003376

hi Dixon

please leave a comment about noise case.
your fw is it is extended as 32 sec. is it a normal solution? isn't it long? there is no side effect?

Thanks

(SW) Dixon Chen

2020-02-21 10:13

developer   ~0003380

Hi Jason,

This solution has been verified in other project.
The customer did not respond with side effect.
If you are worried it, you can test the TV more.
Thanks.

(ALTech) Jason Park

2020-02-25 09:13

developer   ~0003389

hi kerwin / Dixon

if it don't have a side effect, what do you think about applying it for next build of AT100, UH200? Please let me know it.
For your reference.
regardless this FW, this issue don't be reproduced by SEC Engineer after updating TV new FW.

TV Model : UN49NU8000 [SW Version : 1153] ---> latest SW version : 1290.4 버젼 (In a field)

Thanks

(SW) Kerwin Chen

2020-02-25 09:59

developer   ~0003391

Hi Jason,

For this case, because issue is solved on TV, we don't have confidence that extending HDCP authentication time will fix it.
Therefore, I think it is not a right timing to extend HDCP timeout value.

Thanks .

(ALTech) Jason Park

2020-02-26 13:31

developer   ~0003395

HI Kerwin

it is noted. if we reported a similar issue, we will reopen it.
this ticket is closed.

Thanks.

(ALTech) Jason Park

2020-03-27 15:19

developer   ~0003502

hi kerwin

a current VOC are increasing about "no signal" .
so we need to make new FW for testing as your comment. ( timing to extend HDCP timeout value.)

please leave your comment.

Thanks.

(SW) Kerwin Chen

2020-03-27 16:43

developer   ~0003503

Hi Jason,

Dixon already provide r110b test FW in previous post.
https://mantis.cnsbg.foxconn.com/vaas/view.php?id=817#c3369

(SW) Kerwin Chen

2020-04-27 11:31

developer   ~0003562

Hi Jason,

Please use r110u to test this issue.
In r110u, we not just only include HDMI compatibility fixes but also have 30s timeout for HDCP authentication.
Thanks !

(ALTech) Jason Park

2020-05-06 16:11

developer   ~0003565

hi kerwin
we receive some issue from Field.
This issues happen at all port (HDMI 1, 2,3,4) of SEC TV. (QN55Q75RAFXKR, TV sw version : 1536)
When STB boot up, It always happen 'no signal '
so after SKB user set via External Input on TV with using RCU, It works well.

we received a log from skb user to skb server.
please check it whether if it is an strange part regarding to 'no signal'

Thanks.
report_20200506.zip (233,403 bytes)

(ALTech) Jason Park

2020-06-02 17:00

developer   ~0003638

hi kerwin.
skb user is terminated for SKB STB box. so we can't debugging anymore.
so it is closed.
Thanks.

Issue History

Date Modified Username Field Change
2020-02-17 14:13 (ALTech) Jason Park New Issue
2020-02-17 14:13 (ALTech) Jason Park Issue Monitored: (ALTech) SY Yoon
2020-02-17 14:13 (ALTech) Jason Park Issue Monitored: (ALTech) Jason Park
2020-02-17 14:13 (ALTech) Jason Park Issue Monitored: (ALTech) Juyoung Park
2020-02-17 14:14 (ALTech) Jason Park File Added: CEC booting_1(external Input).log
2020-02-17 14:14 (ALTech) Jason Park File Added: CEC booting_2(noise).log
2020-02-17 14:14 (ALTech) Jason Park Assigned To => (SW) Kerwin Chen
2020-02-17 14:14 (ALTech) Jason Park Status new => assigned
2020-02-18 17:34 (SW) Kerwin Chen Note Added: 0003361
2020-02-18 17:50 (ALTech) Jason Park Note Added: 0003362
2020-02-18 18:19 (SW) Kerwin Chen Note Added: 0003363
2020-02-19 10:14 (ALTech) Jason Park Note Added: 0003366
2020-02-19 12:08 (SW) Dixon Chen Note Added: 0003369
2020-02-21 09:18 (ALTech) Jason Park Note Added: 0003376
2020-02-21 10:13 (SW) Dixon Chen Note Added: 0003380
2020-02-25 09:13 (ALTech) Jason Park Note Added: 0003389
2020-02-25 09:59 (SW) Kerwin Chen Note Added: 0003391
2020-02-26 13:31 (ALTech) Jason Park Note Added: 0003395
2020-02-26 13:31 (ALTech) Jason Park Status assigned => resolved
2020-02-26 13:31 (ALTech) Jason Park Resolution open => unable to reproduce
2020-03-27 15:19 (ALTech) Jason Park Status resolved => feedback
2020-03-27 15:19 (ALTech) Jason Park Resolution unable to reproduce => reopened
2020-03-27 15:19 (ALTech) Jason Park Note Added: 0003502
2020-03-27 16:43 (SW) Kerwin Chen Note Added: 0003503
2020-03-31 09:17 (ALTech) Jason Park Status feedback => assigned
2020-04-27 11:31 (SW) Kerwin Chen Note Added: 0003562
2020-05-06 16:11 (ALTech) Jason Park File Added: report_20200506.zip
2020-05-06 16:11 (ALTech) Jason Park Note Added: 0003565
2020-06-02 17:00 (ALTech) Jason Park Note Added: 0003638
2020-06-02 17:00 (ALTech) Jason Park Status assigned => resolved
2020-06-02 17:00 (ALTech) Jason Park Resolution reopened => won't fix
2020-09-28 12:11 (ALTech) Jason Park Status resolved => closed