#719860 powertop: wrong power report status

Package:
powertop
Source:
powertop
Description:
diagnose issues with power consumption and management
Submitter:
Ritesh Raj Sarraf
Date:
2015-03-20 03:30:05 UTC
Severity:
normal
#719860#5
Date:
2013-08-16 08:28:25 UTC
From:
To:
Dear Maintainer,

Please look at the attached screen shot. The over all power consumption
is reported 11.4 W where as the the Laptop fan power estimates alone is
shown 13.1 W. Is this correct ???
#719860#10
Date:
2013-08-17 15:58:02 UTC
From:
To:
Hi,

that seems strange. Could you please try a more recent version [0] to
see if that one still shows such a high power consumption for the fan?
Thanks.


Best regards,
Julian

[0] http://anonscm.debian.org/gitweb/?p=users/jw-guest/powertop.git
#719860#15
Date:
2013-08-18 21:31:39 UTC
From:
To:
I tried the git version and the problem persists. I'll send the screenshot
later

s3nt fr0m a $martph0ne, excuse typ0s
#719860#20
Date:
2013-08-19 00:34:11 UTC
From:
To:
attached
#719860#23
Date:
2013-09-01 17:54:53 UTC
From:
To:
Hi Ritesh,

In the last screenshot you sent from 2.4 I can't see the report of the
laptop FAN, yet, you said it persisted. Could you try again?

2.4-1 is already in unstable.
#719860#28
Date:
2013-09-02 07:03:25 UTC
From:
To:
The Laptop Fan is not reported any more. But still, the power
consumption reporting is wrong.

What is your say? Isn't the sum of the items in the "Power estimates"
column suppose to be the total power consumption ?
#719860#31
Date:
2013-09-04 16:25:08 UTC
From:
To:
Hi Ritesh,

More data?

Why is bad the reporting? What's reporting? Comparing with `acpi -V`?

Thanks for your feedback!
#719860#36
Date:
2013-09-06 06:43:35 UTC
From:
To:
WHat more data do you want? I think I've provided you with enough
screenshots.

acpi's reporting is different than what powertop shows. I can't see much
commonality in their results.
#719860#39
Date:
2013-09-06 06:43:35 UTC
From:
To:
WHat more data do you want? I think I've provided you with enough
screenshots.

acpi's reporting is different than what powertop shows. I can't see much
commonality in their results.
#719860#44
Date:
2015-03-20 03:27:39 UTC
From:
To:
Please find the acpi -V output below, though I can't find any point to build relation with powertop's output.


$acpi -V
Battery 0: Discharging, 87%, 05:20:00 remaining
Battery 0: design capacity 2680 mAh, last full capacity 2680 mAh = 100%
Adapter 0: off-line
Thermal 0: ok, 127.0 degrees C
Thermal 0: trip point 0 switches to mode critical at temperature 128.0 degrees C
Thermal 1: ok, 30.0 degrees C
Thermal 1: trip point 0 switches to mode critical at temperature 128.0 degrees C
Thermal 1: trip point 1 switches to mode passive at temperature 55.0 degrees C
Thermal 2: ok, 0.0 degrees C
Thermal 2: trip point 0 switches to mode critical at temperature 128.0 degrees C
Thermal 3: ok, 0.0 degrees C
Thermal 3: trip point 0 switches to mode critical at temperature 128.0 degrees C
Thermal 4: ok, 0.0 degrees C
Thermal 4: trip point 0 switches to mode critical at temperature 128.0 degrees C
Thermal 4: trip point 1 switches to mode passive at temperature 102.0 degrees C
Thermal 5: ok, 40.0 degrees C
Thermal 5: trip point 0 switches to mode critical at temperature 128.0 degrees C
Thermal 5: trip point 1 switches to mode hot at temperature 99.0 degrees C
Cooling 0: x86_pkg_temp no state information available
Cooling 1: intel_powerclamp no state information available
Cooling 2: Processor 0 of 10
Cooling 3: Processor 0 of 10
Cooling 4: Processor 0 of 10
Cooling 5: Processor 0 of 10


I've tried powertop on 3 machines, and everywhere I get weird readings. It sure is a powertop problem. It could also be a screwed up thermal driver. Look at the thermal output. It has been wrong for months now.


Please also see latest screenshot attached. It report that the bridge interface is consuming 50 W of power.


- System Information:
Debian Release: 8.0
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_IN, LC_CTYPE=en_IN (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages powertop depends on:
ii  libc6             2.19-15
ii  libgcc1           1:4.9.2-10
ii  libncursesw5      5.9+20140913-1+b1
ii  libnl-3-200       3.2.24-2
ii  libnl-genl-3-200  3.2.24-2
ii  libpci3           1:3.2.1-3
ii  libstdc++6        4.9.2-10
ii  libtinfo5         5.9+20140913-1+b1

powertop recommends no packages.

Versions of packages powertop suggests:
pn  cpufrequtils       <none>
ii  laptop-mode-tools  1.66-2