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Bug#825403: marked as done (linux: [regression from 4.5.0-1] power consumption increased significantly on T460p)

Your message dated Sat, 24 Sep 2016 15:44:52 +0100
with message-id <1474728292.26920.46.camel@decadent.org.uk>
and subject line Re: Bug#825403: linux: [regression from 4.5.0-1] power consumption increased significantly on T460p
has caused the Debian Bug report #825403,
regarding linux: [regression from 4.5.0-1] power consumption increased significantly on T460p
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
825403: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=825403
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Source: linux
Version: 4.5.0-2
Severity: normal

Dear Maintainer,

Since the dist-upgrade this weekend, I noticed massively increased power
consuption on my T460p. I measure this by battery lifetime and the wattage
reported by ACPI.

The wattage has increased from the range of 7W -- 10W with my usage pattern to
10W -- 12W. These increased metrics are not due to a change in measurement. The
battery life has reduced alongside. I have tested with 4.5.0-1 and the problem
does not occur there.

I was unable to find a possible cause using powertop. What I noticed is that
the fan runs even though it would normally not under the load I am putting on
the machine. I cannot tell whether this is the cause of the problem, or whether
the fan merely runs because something else is putting load on some system
component which needs cooling.

Please let me know whether there is anything I can do to provide more
meaningful data.



-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.5.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

--- End Message ---
--- Begin Message --- 
Version: 4.7.4-2

On Sat, 2016-09-24 at 13:30 +0200, Jonas Wielicki wrote:
> It appears to me that the problem is fixed with 4.7.0-1.

Thanks for letting us know.

Ben.

-- 
Ben Hutchings
Editing code like this is akin to sticking plasters on the bleeding
stump
of a severed limb. - me, 29 June 1999

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