Opened 5 years ago

Closed 5 years ago

#9630 closed defect (wontfix)

powertop-reported ACPI power usage estimates very high

Reported by: martin.langhoff Owned by: pgf
Priority: low Milestone: 1.5-software-later
Component: ofw - open firmware Version: Development build as of this date
Keywords: os34 Cc:
Blocked By: Blocking:
Deployments affected: Action Needed: diagnose
Verified: no

Description

powertop 1.11 reports 35W on build os34

This is based on ACPI data, so it may be a hint that our ACPI data is off. If power mgmt tools or hal read the same data and take it as good it could lead to undesided side-effects.

Not sure what component ACPI issues belong to. OFW?

Change History (5)

comment:1 Changed 5 years ago by martin.langhoff

comment:2 Changed 5 years ago by wmb@…

  • Owner changed from wmb@… to pgf

Assigning to pgf to have a look at the relevant DSDT code.

comment:3 Changed 5 years ago by Quozl

  • Action Needed changed from never set to diagnose
  • Keywords os34 added
  • Milestone changed from Not Triaged to 1.5-F11
  • Version changed from not specified to Development build as of this date

triage.

comment:4 Changed 5 years ago by triagebot

  • Milestone changed from 1.5-software to 1.5-software-update

changed by irc user Quozl:

comment:5 Changed 5 years ago by pgf

  • Resolution set to wontfix
  • Status changed from new to closed

this was either fixed, or made worse (your choice) by #9542, which disabled the kernel's ACPI battery driver in favor of the OLPC driver.

i'm closing for now. powertop works in that it counts interrupts, and does C-state accounting, but it can't report power usage estimates.

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