my laptop does not seem to support ASPM:
dmesg | grep ASP
[0.963968] ACPI FADT declares the system doesn't support PCIe ASPM, so
disable it
[1.328171] ACPI _OSC control for PCIe not granted, disabling ASPM
but it looks like it supports epb:
dmesg | grep ENE
[0.000241]
The patch I mentioned in comment #241 is now also available in the
upstream 3.2.5 kernel, and more importantly for Oneiric, in the upstream
3.0.20 kernel. PPA's of these kernels are available at
http://kernel.ubuntu.com/~kernel-ppa/mainline/
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The 3.2.0-15.24 kernel in Ubuntu 12.04 Precise Pangolin repository has
been rebased to upstream 3.2.5.
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Title:
Power consumption raised
Stilling facing this bug with sony vaio ubuntu 10.04.3 2.6.32-38-generic
when i m using ubuntu the battery drop down in half time than windows
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Oussama - This bug is about a power consumption regression between
Maverick and Natty. If you are using Lucid (10.04.x) then you have a
different bug.
The patch/es described in comments 236-239 will be available in the
upstream kernel 3.3. Canonical has back-ported this patch into the
Matthew Garrett proposed a patch for the ASPM Linux problem:
https://lkml.org/lkml/2011/11/10/467
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Title:
Power consumption raised significantly
There were some more patches posted that disable ASPM on specific
hardware, like Microsoft does.
https://lkml.org/lkml/2011/11/11/178
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Title:
There's a tweet today from @michaellarabel about a kernel patch to fix
ASPM. It looks like this one:
[PATCH] pci: Rework ASPM disable code
https://lkml.org/lkml/2011/11/10/467
It applies to 3.1 source with an offset warning but no errors. I applies
cleanly to 3.2-rc1. I haven't tested bootup yet
Yes it's that patch that's fixed the out of the box ASPM support on
all of the hardware I've hit this afternoon -
http://www.phoronix.com/scan.php?page=articleitem=linux_aspm_solutionnum=1
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After some more extensive testing I cannot confirm the regression anymore on my
Panasonic CF-T5:
forcing pcie_aspm and manually setting powersave:
echo powersave /sys/module/pcie_aspm/parameters/policy
solves the problem for me as well.
From /proc/cpuinfo:
vendor_id : GenuineIntel
cpu
Thank you Seth Forshee and madbiologist. As you suggested I created a
new bug ticket. bug #883403
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Title:
Power consumption raised significantly
Current way of rendering the GUI is dependent on CPU power, so battery
on stronger processors runs longer, why, because the stronger CPU needs
less time to render the GUI, it's just like in vehicles, as vehicle has
more horsepower it consumes less fuel, because it takes less time to
achieve the
@Launchpad Janitor (janitor) wrote on 2011-10-25:#229
thanks a lot, however I did test the new kernel from natty-proposed, it does
not solve the problem for me.
It does marginally improve over 2.6.38-11.50, but it is still a major
regression compared
to 2.6.35-28.50. For me the problem is
@FrankSL - what CPU is in the HP 6710b?
@piccobello What CPU is in your PC?
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Title:
Power consumption raised significantly in natty
To manage
I have a HP 6710b laptop and still have this problem in Natty with latest
updates. My system i a dual boot with windows xp, so I can easily compare
battery life and with natty is way shorter than with windows.
Please tell me if I can provide any info.
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This bug was fixed in the package linux - 2.6.38-12.51
---
linux (2.6.38-12.51) natty-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #860832
[ Alex Bligh ]
* SAUCE: net/netfilter/nf_conntrack_netlink.c: fix Oops on container
destroy
-
That's why Ubuntu should leave Xorg, urgently! Sooner, better. All of
the power, performance, hangs, freeze. will be fixed instantly when
Wayland comes up.
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Hello everyone
I just want to find out if it is easy to observe this problem when using
Live CD distributions. I want to try and test a few different versions
of distributions (using Live CDs, so I don't mess up my current setup).
Is there a difference in power consumption between a Live CD and
Well, for one Live CDs tend to run drom CD, which tends to use a bucketload of
energy over time...
I'm not sure if you can compare Live CDs to other ones, but you definitely
can't compare them to a system installed on a hard drive.
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@ Kevin and anyone else with an Intel Sandy Bridge CPU who is
experiencing even higher power consumption in Oneiric than in Natty -
further to comment #212, that issue is being tracked in bug #818830
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Hello,
I have a thinkpad x200 (sandy bridge), and I don't think my experience
is very typical, but: I saw some of the same power regressions people
are talking about, but I stuck with the latter kernels (I'm using 3.0.4
from the mainline site) because the older, energy-saving kernels had
some
@Carlos: Do you mean to say you've got a ThinkPad X220 (sandy bridge)?
Or, as you stated, do you have an X200 (core 2 duo)?
This bug was originally reported regarding an X200s with core 2 duo, but
was highjacked and subsequently fixed only for current Sandy Bridge
processors. See comment #209 for
@Tekstr1der: Yes, I meant a X220. But my point was that I saw a
significant change in changing Ubuntu versions *without* changing the
kernel. But maybe it's an edge case.
Cheers.
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@Julian - There are actually 3 power regressions discussed in this bug.
The biggest one seems to have occurred between the 2.6.37 kernel and
Natty's 2.6.38 kernel, when Active-State Power Management (ASPM) was
disabled. This was done as some BIOS's have broken support for ASPM and
linux will hang
@ Tim Gardner and Leann Ogasawara - further to comment #209,
particularly the last sentence, I have reviewed this bug. The author of
comment #168 has not tested the patch from comment #164 which you refer
to in comment #201. They performed a package-upgrade to linux-image
2.6.38-11 (which
@ madbiologist
So now we have to upgrade our computers with the latest intel hardware?
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Title:
Power consumption raised significantly in natty
@ Kevin and anyone else with an Intel Sandy Bridge CPU who is
experiencing even higher power consumption in Oneiric than in Natty -
that is yet another power regression and should be reported in a new bug
- see
http://www.phoronix.com/scan.php?page=articleitem=linux_31_power_regressnum=1
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@ madbiologist:
Why Lubuntu last 4 and Ubuntu 1:45h. on my laptop? Same computer, same kernel.
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Title:
Power consumption raised significantly in
Why would you need glxinfo? We talk about kernel power regression.
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Title:
Power consumption raised significantly in natty
To manage
One more data point. On my Lenovo ThinkPad T410 (so, same as in comment
#168) I was able to recover most of the Maverick-like battery life by
updating to the newest BIOS. Before the upgrade powertop showed ~25W of
battery drain w/o tuning, with pcie_aspm=force and all powertop
suggestions done it
madbiologist, Please answer my second question.
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Title:
Power consumption raised significantly in natty
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@ Pako re comment #213 - I think you answered that question yourself in
comment #197.
What is the output of lspci -vvnn on that computer? And what is the
output of glxinfo |grep render (without the quotation marks) from
Lubuntu and from Ubuntu? Please attach the information to this bug
report
@ Pako - I wasn't suggesting that anyone should upgrade their computer
to the latest Intel hardware. Sorry if it appeared that way. I was
trying to explain that the so called fix for this bug is in fact
limited to the latest Intel hardware. I think it is unfortunate and
inappropriate that this
@ Laurynas - that is excellent news! I'm guessing that pcie_aspm=force
now has no effect on power consumption?
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Title:
Power consumption raised
I was trying to answer your question. But you are correct, this bug is
about kernel power regressions. Therefore your question in comment #213
is outside the scope of this bug. Please note that demanding an answer
to a question, or a response to a comment, as you did in comment #215,
is poor
@madbiologist. It still does. The system runs at 19-20W without it
instead of 16-17W. Whatever the BIOS update fixed, it was not ASPM I
think:
laurynas@laurynas-ThinkPad-T410:~$ dmesg | grep ASPM
[0.498093] ACPI FADT declares the system doesn't support PCIe ASPM, so
disable it
[0.788492]
Based on the several comments above, this issue seems to be hardware-
specific. For now, I've given up using Ubuntu but want to use it again
as soon as possible so I'd like to create a bug ticket for my laptop.
Could anyone please tell me what information I should include
(preferably how I could
On Mon, Oct 17, 2011 at 02:40:09PM -, Kevin wrote:
Based on the several comments above, this issue seems to be hardware-
specific. For now, I've given up using Ubuntu but want to use it again
as soon as possible so I'd like to create a bug ticket for my laptop.
Could anyone please tell me
Aside from the fact that this is unrelated to a power regression:
Is the ubuntu/linux power consumption bug really device-specific?
On my Thinkpad X60s, ubuntu uses at least 4 Watts more as Windows does: roughly
12W instead of 8W (thats 50%) .
I haven't seen a single device since my good old
Maybe this issue would need special attention from Apport application,
an if in it's code, to be able to add multiple sets of attachments on
the same bug (attachments from different people; as it is now, if the
bug is there already you cannot automatically attach your logs). I
think it will also
I HAVE THE SAME PROBLEM, BUT MINE IS VERY WORST!!! MY BATTERY STARTS
WITH 2:45 HOURS REMAINING (AND WITH A CORRECT ENERGY SAVER IT CAN BE
MORE THAN 3 HOURS) AND AFTER EACH 10 MINUTES MY BATTERY HAS 30 MINUTES
LESS.
CAN SOMEONE UNDERSTAND THAT THIS BUG IS A VERY IMPORTANT REGRESSION THAT
LET ME TO
@jakbest
As far as I could see, it's mostly a kernel problem, so I guess making some
pressure on kernel developers to manage a way around power management + better
drivers.
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[(continuing idea)..] might be a good idea.
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Title:
Power consumption raised significantly in natty
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Herton - this patch would have come via stable had this kernel been in
the support window, so I think its OK to leave it alone. It does not
appear to be causing any regressions, and I've read reports that is has
made a difference on some platforms. There are likely multiple reasons
for increased
This patch improves the situation for at least one person (#168) so I'm
marking this verification-done. Furthermore, this bug report has become
unmanageable. We'll be looking at this issue during the LTS development
cycle, so everyone please start your own bug with your hardware
specifics
** Tags removed: verification-needed-natty
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Title:
Power consumption raised significantly in natty
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@ Erwin Junge
How you get your result? ~6 hours in Ubuntu, ~10 in Lubuntu? or ~6 to ~10 in
Lubuntu with a different kernel?
However, Erwins test shows that there are huge difference in battery time from
different desktop environments, thus, you can't get results based on kernel
test only,
On Mon, 10 Oct 2011 10:29:21 -, Pako 760...@bugs.launchpad.net
wrote:
@ Erwin Junge
How you get your result? ~6 hours in Ubuntu, ~10 in Lubuntu? or ~6 to
~10
in Lubuntu with a different kernel?
However, Erwins test shows that there are huge difference in battery
time
from different
I tried Lubuntu and got the same problem. It's only 2 hours. I tested it
with Lubuntu 11.04 64bit. It was only a Live USB as all I got after
installation was just a dark blank screen. Although I used only a Live
USB, I upgraded the kernel.
I installed Ubuntu 11.10 again and can still see the same
Apparently, there is no fix for this bug yet, proof is here:
http://www.phoronix.com/scan.php?page=articleitem=ubuntu_linux_epbnum=1
Quoting the article:
What Canonical's kernel team says is the fix to LP #760131 is an
unrelated power fix done upstream to ensure that the
Can someone test the same kernel on Xubuntu or Lubuntu, because It's а
little bit suspicious on how Ubuntu draw and render the GUI, just to be
sure that everything is ok there, plus, there are almost 20 power hungry
non-kernel services running in background. Test!
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Just to add a counterpoint, I've found that things are more or less
working well for me with the new kernel - it's definitely better then
the earlier versions. However, my biggest problem is the brcmsmac
driver being pushed out without power management, which appears to be
taking up to 5W (5W!)
I am now running Lubuntu Beta 2 with kernel 3.0.0-12-generic and at
least for me the issue seems fixed. I didn't do any actual wattage
measurements, but my time on battery went from ~6 hours to ~10 hours
(where it was before this whole power problem started).
Since this problem seems to be very
I've recently installed 11.10 beta 2 on my laptop {Dell Xps 15, i5, 6gbram, 1gb
video card, 500gb hd) and its sucking my battery like a sponge would suck water
I hardly get an hour of battery backup. whereas when I use Windows7 my battery
lasts more than 2:30hours.
I've the latest kernels
There are many reports from users about high xorg CPU load when using
themes like: Ambiance, Radiance, Dust, Human and Impression. Clearlooks
is the only theme which consumes lowest power.
One of the reported bug: Bug #595845
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Here's my findings on the latest power developments, for what it's
worth: http://www.phoronix.com/vr.php?view=16496
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Title:
Power consumption
The kernel 2.6.38-12.51 don't solves the problem for me. I see a little
improvement in battery life (from 4h to 4h30'), but powertop doesn't notice any
reduction in power usage in idle. Moreover, the optimal battery life of my
netbook should be about 6h. ( aspm parameter at boot does nothing).
Unfortunately kernel 2.6.38-12.51 doesn't improve the situation that
much for me either. Maybe a bit, but I'm not sure about that. I was
surprised to find out that even pcie_aspm=force and i915_enable_rc6=1
don't improve power consumption anymore. Some months back
pcie_aspm=force still improved
This bug is awaiting verification that the Natty kernel in -proposed
solves the problem.
Please test the following way:
- Test the current 2.6.38-11.50 kernel in -updates. The problem should be
present.
- Then update to the 2.6.38-12.51 kernel currently in -proposed. If the problem
is solved,
** Branch linked: lp:ubuntu/lucid-proposed/linux-lts-backport-natty
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Title:
Power consumption raised significantly in natty
To manage
On my Dell Vostro 3450 with i5 2410M Ubuntu can work over 4 hours
without any power supply. I just had to force ASPM to work and put echo
powersave /sys/module/pcie_aspm/parameters/policy in /etc/rc.local. I
know it's an awful hack, but it works. Something should be done about
it. Battery
i have not tested the patched kernel in natty but as far as oneiric goes
the power regression is significantly higher than it was ever in
Natty... i see 22 W idle and upto 34 W usage on normal browsing in
oneiric 3.0.0.11 which is the Oneiric Beta 2 kernel... it was mentioned
in #179 that the fix
Kevin - a check of the publishing details shows that the patch noted in
comment #164 is included in both the kernels you mentioned in comment
#181.
What CPU is in your Lenovo E520?
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I too having same issue even after upgraded the kernel version from
2.6.38-11.48 to 2.6.38-11.50.
My system is Dell Inspiron1564 | Intel i3 Processor | 2GB RAM | Ubuntu Natty
Is the patch is system specific?
Awaiting for the patch since its affects my laptop battery life
significantly.
Thanks
Thanks madbiologist for your answer.
It's Intel i7 2620M. It has an AMD Radeon HD 6630M switchable graphics chip but
I turned it off by following http://ubuntuforums.org/showthread.php?t=1752202
More specifically
Thanks Deltik, but as I said, I was using 2.6.38-11.51~pre201109230902 from
https://launchpad.net/~kernel-ppa/+archive/pre-proposed when I put the comment.
Wasn't it the version to which the patch was applied? Please correct me if I'm
wrong.
Anyway, I now have the 2.6.38-12 one from
The patch noted in comment #164 was applied to Oneiric when the Oneiric
kernel was rebased to upstream stable v3.0.1. It was subsequently
uploaded and available in Oneiric as of linux-3.0.0-8.10. I'm therefore
marking the Oneiric task Fix Released. If you are still experiencing
issues with
I do still have this issue with the kernel 2.6.38-11.51~pre201109230902 from
https://launchpad.net/~kernel-ppa/+archive/pre-proposed.
Please see
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/760131/comments/172
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/760131/comments/173
The fix hasn't been released for Natty. While you're using Natty, you'll
have to wait for a release.
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Title:
Power consumption raised
I really hope a fix will be committed as soon as possible in Oneiric. My
laptop's battery life is terrible and I get a prompt that I have
approximately 20 minutes left at 40%. The computer hibernates about 5
minutes later, even while using pcie_aspm=force. I'm using kernel
3.0.0-11-generic.
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** Changed in: linux (Ubuntu Oneiric)
Status: Triaged = Confirmed
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Title:
Power consumption raised significantly in natty
To manage
Please don't change the Bug Status randomly without commenting why. Also
don't touch a kernel bug's status unless you know what the states mean.
** Changed in: linux (Ubuntu Oneiric)
Status: Confirmed = Triaged
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** Changed in: linux (Ubuntu)
Milestone: ubuntu-11.10-beta-2 = ubuntu-11.10
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Title:
Power consumption raised significantly in natty
To
By the way, how do I uninstall the kernel ppa:kernel-ppa/pre-proposed
installed and get the old one back?
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Title:
Power consumption raised
florin - tip of the tree builds are performed daily and can be found
here: https://launchpad.net/~kernel-ppa/+archive/pre-proposed
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Title:
Power
Whooo!
With the latest package-upgrade (i.e. linux-image 2.6.38-11) for Natty, the
Idle Power consumption reported by powertop on my TP T410 went down *more
than 50%*: From around 25W to below 12W.
It is also much cool and quiet again.
Just awesome, thank you all so much for the great work on
When this patch will be applicable in oneiric? My Vostro 3450 eats whole
battery in 1.5h, and ASPM workaround doesn't work.
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Title:
Power
I have been using the latest stable kernels from mainline on my X220,
but I was curious to see if the power consumption was better with the
'pre-proposed' kernel mentioned in #167. For some reason, however, the
computer would start but it would hang just after login in gnome (the
panel wouldn't
I've installed it with ppa:kernel-ppa/pre-proposed
But my laptop now seems to run hotter than before... :(
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Title:
Power consumption raised
I've upgraded to 2.6.38-11.51~pre201109220902 in the kernel-ppa/pre-
proposed. Unfortunately, I don't think it works on my Lenovo E520. The
battery life shown is about 2 hours then it drains so fast while I can
have about 5 hours on Windows 7.
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By the way, I'm using Ubuntu 11.04 desktop 64bit.
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Power consumption raised significantly in natty
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In my case, pcie_aspm=force doesn't seem to work either. I tried it
after having kernel upgrade with the latest one from kernel-ppa/pre-
proposed and only through command-line modification when booting. I can
see PCIe ASPM is forcedly enabled in /var/log/dmesg but don't see any
difference.
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** Changed in: linux (Ubuntu Natty)
Status: In Progress = Fix Committed
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Title:
Power consumption raised significantly in natty
To manage
Hi Anyone tested this fix? Awaiting for result. Anyway thanks for
Cannonical kernel team!!! - Bas
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Title:
Power consumption raised significantly
Was it pushed to ppa? I just checked and I don't have any kernel
updates today or yesterday.
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Title:
Power consumption raised significantly in
SRU Justification:
Impact: Since 2.6.36 (23016bf0d25), Linux prints the existence of epb in
/proc/cpuinfo,
Since 2.6.38 (d5532ee7b40), the x86_energy_perf_policy(8) utility has
been available in-tree to update MSR_IA32_ENERGY_PERF_BIAS.
However, the typical BIOS fails to
** Changed in: linux (Ubuntu Natty)
Status: Incomplete = Confirmed
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Title:
Power consumption raised significantly in natty
To manage
i am running 3.0.3 compiled from source in natty , and not
experiencing any battery or heat issues... i get 11 -14 w max
consumption in ... and upto 19-20 W on AC,i have kept cpu freq to
'ondemand' and also i have turned on pcie.aspm=force, I guess the
issue is fixed in 3.0 kernel series i
I should probably have mentioned that I'm running Oneric, not Natty,
although I'm not certain it's fixed - I just wanted to note that the
3.0.0.9 kernel seems to have made an improvement.
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** Tags added: rls-mgr-o-tracking
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Title:
Power consumption raised significantly in natty
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I seem to remember a kernel patch that increased speed and
responsiveness being added recently. Would this be the cause? cause then
it isn't a regression, just a utilization of more power to provide more
responsiveness.
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Even if that were so, when my laptop goes into battery mode, with all of
the aggressive power saving modes throttling the CPU, etc, it's
unacceptable for it to be running so hot. I wouldn't normally care if
it's plugged in and sucking up power, but when the power is supposed to
be scaled back, it
** Changed in: linux (Ubuntu)
Milestone: ubuntu-11.10-beta-1 = ubuntu-11.10-beta-2
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Title:
Power consumption raised significantly in natty
Yes, I have the 5100
On 8/12/11, Tamran 760...@bugs.launchpad.net wrote:
@Matthew: Are you by any chance using the following intel wireless card?
Intel Corporation PRO/Wireless 5100 AGN [Shiloh]
One thing I have not seen mention until now, but have noticed is that my
laptop is REALLY hot
@Matthew: Are you by any chance using the following intel wireless card?
Intel Corporation PRO/Wireless 5100 AGN [Shiloh]
One thing I have not seen mention until now, but have noticed is that my
laptop is REALLY hot near my wireless card. Even with the 2.6.34 kernel
(which I've been using for a
@Matthew
What I understood from your post is that there was a bug in your
wireless driver and you manually set the aspm bit which resulted in a
significant power reduction?
Sounds very dangerous to me (at least the stuff I read in that wiki
sounds way too prone to user error), but thanks for
Yes, you got the right idea.
I don't know that it is really dangerous - worst case would be your
driver wouldn't load or lock up, a reboot would fix it.
My scenario works for the iwlagn driver, I don't know if you have the
same hardware.
It does make a 2 - 3 watt difference in power usage for
@Erwin - not sure if you have this same hardware as mine, but I did find
what makes the difference for my laptop.
Natty running 2.6.35 kernel, can idle at 18.5 watts - runs ok, but I
find that power management screws up my primary drive when it goes to
sleep, will not wake up the drive at all,
Hi,
On ubuntu 11.04, Acer eeePC, I included this into /etc/rc.local to
reduce power consumption by ~30%.
--
for F in /sys/bus/usb/devices/*/power/control; do
echo auto $F
done
--
Greetings
Peter
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** Changed in: linux (Ubuntu Oneiric)
Milestone: None = ubuntu-11.10-beta-1
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/760131
Title:
Power consumption raised significantly in natty
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