Ticket #10668 (closed defect: fixed)

Opened 2 years ago

Last modified 21 months ago

XO-1.75 A2 low or critical battery indicator persists when power off

Reported by: Quozl Owned by: rsmith
Priority: low Milestone: 1.75-firmware
Component: embedded controller Version: 1.75-A2
Keywords: Cc:
Action Needed: no action Verified: no
Deployments affected: Blocked By:
Blocking:

Description

With a low or critical battery, the battery indicator continues to indicate (orange/red flashing or constant red) despite the laptop being powered off.

Change History

  Changed 2 years ago by Quozl

  • next_action changed from reproduce to diagnose

Reproduced on XO-1.75 A2 with Q4A13f and 0.0.8, and 0.0.9. Put a battery in, allow to discharge, after low voltage shutdown observe battery LED indicator on.

  Changed 2 years ago by pgf

is this new behavior? i'm pretty sure the same thing happens on the x86 laptops as well. (which doesn't make it correct.)

  Changed 2 years ago by Quozl

not recently tested ... on the x86 laptops, the red LED only appears when a game key is touched, and eventually goes away ... but on ARM the red LED just appears and stays.

follow-up: ↓ 5   Changed 22 months ago by Quozl

Also seen Q4B06 on XO-1.75 B1 per #11105.

in reply to: ↑ 4   Changed 22 months ago by rsmith

Replying to Quozl:

Also seen Q4B06 on XO-1.75 B1 per #11105.

This is fixed in EC head. Will show up in next EC release.

  Changed 21 months ago by Quozl

  • next_action changed from diagnose to test in build

Not seen since the fix made it into Q4B07, needs a test.

  Changed 21 months ago by Quozl

  • status changed from new to closed
  • next_action changed from test in build to no action
  • resolution set to fixed

Tested in Q4B08 with EC 0.2.03, on two laptops, no longer occurs. The lowest battery voltage displayed by watch-battery was 5.49V, then the EC did automatic power off. Closing.

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