Thomas Mayer, thank you for your comment. So your hardware and problem may be
tracked, could you please file a new report with Ubuntu by executing the
following in a terminal while booted into a Ubuntu repository kernel (not a
mainline one) via:
ubuntu-bug linux
For more on this, please read th
I hit this bug on a Dell Latitude E5510, up-to-date BIOS version
installed.
I'm running up-to-date ubuntu 12.04.4 with last hardware-enablement stack
installed (uname -a:
Linux i306l 3.11.0-17-generic #31~precise1-Ubuntu SMP Tue Feb 4 21:25:43 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux).
For me, t
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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T
Gioele Barabucci, could you please test the latest mainline kernel (not
the daily) via http://kernel.ubuntu.com/~kernel-
ppa/mainline/v3.12-rc6-saucy/ and advise to the results?
As well, because Samsung does not easily reveal what the latest BIOS is for
this model, could you please download the l
** Tags added: kernel-therm
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Title:
[Samsung NP900X3D-A03IT] Powertop shows 100% Device Usage for audio
codecs
To manage notifications about t
** Description changed:
- powertop reports that two audio codecs are both up 100% of the time,
- even when no sound is playing.
+ On my Samsung Series 9 NP900X3D-A03IT despite setting the PowerTOP ->
Tunables setting for:
+ Bad Enable Audio codec power management
+ to:
+ Good Enable Audio code
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[Samsung NP900X3D-A03IT] Powertop shows 100% Device Usage for audio
I have a similar tunable setting and all the results I reported are with
that setting set to Good (from the default Bad).
That setting _should_ be on by default and _should_ resolve the 100%
usage problem. This bug report is about the fact that setting it on does
not resolve the issue.
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Gioele Barabucci, speaking only for my own hardware, in PowerTOP -> Tunables
the following was noticed:
BadEnable Audio codec power management
I toggled this to:
GoodEnable Audio codec power management
and noticed in Device Stats:
0.0%Audio codec hwC0D3: Intel
0.0%
** Tags removed: regression-potential
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Title:
[Samsung NP900X3D-A03IT] Powertop shows 100% Device Usage for audio
codecs
To manage notificatio
Please note that this bug is well know since early 2012.
http://thread.gmane.org/gmane.linux.power-management.lesswatts.general/650
https://lkml.org/lkml/2012/4/15/164
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It is not possible: the powertop version available in Lucid does not
have the code to report the usage power of devices. And newer versions
of powertop require new kernels, so I would end up testing it against
the kernel available in Precise.
** Changed in: linux (Ubuntu)
Status: Incomplete
Gioele Barabucci, for regression testing purposes, could you please test
Lucid via http://old-releases.ubuntu.com/releases/lucid/ and advise if
this is reproducible?
** Tags removed: kernel-request-3.11.0-7.14
** Tags added: bot-stop-nagging
** Tags added: latest-bios-unknown
** Changed in: linu
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
[Samsung NP900X3D-A03IT] Powertop shows 100% Device Usage for audio
Confirmed also with kernel
3.12.0-999-generic
from mainline package
linux-image-3.12.0-999-generic_3.12.0-999.201310190453_i386.deb
and powertop version 2.4
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This bug is still present in the kernel released with Ubuntu 13.10:
linux 3.11.0-12-generic
from package
linux-image-3.11.0-12-generic
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luojie-dune, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug
Control team, and Ubuntu Bug Squad would like you to please file a new report
by executing the following in a terminal while booted into a Ubuntu repository
kernel (not a mainline one) via:
ubuntu-bug linux
For more on
How about the user of Precise release? Will we receive update/bug-fix?
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Title:
[Samsung NP900X3D-A03IT] Powertop shows 100% Device Usage for audi
Given the number of bugs that the Kernel Team receives during any
development cycle it is impossible for us to review them all. Therefore,
we occasionally resort to using automated bots to request further
testing. This is such a request.
We are approaching release and would like to confirm if this
So, per the Ubuntu Kernel Team policy, should'n new reporters of
existing bugs (like rmcd) do
apport-collect -p linux 1213719
apport-collect -p alsa-base 1213719
instead of opening new bug reports?
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Gioele Barabucci, as already documented in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1213719/comments/13
, this is as per the Ubuntu Kernel Team policy.
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penalvch, why are you suggesting rmcd to file a new bug? What is the
point of having dozens of identical bugs files for the same problem?
Can't just rmcd add its system information to this bug?
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rmcd, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control
team, and Ubuntu Bug Squad would like you to please file a new report by
executing the following in a terminal while booted into a Ubuntu repository
kernel (not a mainline one) via:
ubuntu-bug linux
For more on this,
I have a Lenovo x220s, running 12. 10, which shows only hwc0D3 running
at 100% and using about 1w. I agree with ?@gioele that this doesn't seem
on the surface to be innocuous.
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In that state the two codecs drain about 2W to 3W of power. About the
15% of the whole power consumption of this laptop. This constant usage
has an impact on the temperature of the computer, so that the process
must run slower in order not to exceed its temperature envelope.
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