Ticket #12558 (new defect)

Opened 14 months ago

Last modified 14 months ago

CL4 - power LED light when system is down

Reported by: chia-hsiu Owned by: rsmith
Priority: normal Milestone: Not Triaged
Component: embedded controller Version: 4-C1
Keywords: Cc: richard@…
Action Needed: test in build Verified: no
Deployments affected: Blocked By:
Blocking:

Description

Sometimes I saw power LED light but system is down. The way to duplicate is
1. push power button to power up
2. long push power button to force shutdown system and then quickly push power button again to power up
3. try several times. when timing match, you may find sometimes power LED lights but system doesn't up.
I can duplicate on XO-1.75 / XO-4.
UART doesn't dump any useful information, system is down.

Attachments

ec.log (1.0 kB) - added by chia-hsiu 14 months ago.
IMG_0339.MOV (3.2 MB) - added by chia-hsiu 14 months ago.
Vedio

Change History

follow-up: ↓ 2   Changed 14 months ago by dsd

Can you capture output from the EC serial console port from when this happens?

Changed 14 months ago by chia-hsiu

in reply to: ↑ 1   Changed 14 months ago by chia-hsiu

Replying to dsd:

Can you capture output from the EC serial console port from when this happens?

Attached. Sometimes it stop at "soc_sleep: fell".

Changed 14 months ago by chia-hsiu

Vedio

  Changed 14 months ago by Quozl

Nice video, thanks. I note that the camera LED did not come on that last time.

I have tried to reproduce in the same way, but the problem does not happen for me yet.

Can you please confirm the EC firmware version and the SKU?

  Changed 14 months ago by chia-hsiu

SKU296 C-stage, OFW: Q7B16, EC: 0.3.12
This issue reported by QA in C-stage, but we can't duplicate until yesterday. I can also duplicate on CL2 by using this method, and this issue is harmless.

  Changed 14 months ago by chia-hsiu

I've plugged adapter and battery. If it's in discharging mode, power LED only left 1 second and then turn dark.

  Changed 14 months ago by rsmith

Thanks for the log. This will be fixed in the next EC release. I'll backport the fix to 1.75 as well.

  Changed 14 months ago by chia-hsiu

I can duplicate use 0.3.13 on SKU296. OFW is Q7B16.

  Changed 14 months ago by Quozl

Thanks. Fix is not in 0.3.13, as 0.3.13 was needed quickly. We plan to include in next release instead.

  Changed 14 months ago by Quozl

  • next_action changed from never set to test in build

Is in 0.4.00 in Q7B18.

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