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http://www.phoronix.com/scan.php?page=news_item&px=MTAxNDM

When will this come for ubuntu ?

I am getting tired with my 11.10 dieing at little over 50 minutes of battery when at the most extreme powersaving plan.

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closed as off topic by jrg May 23 '12 at 17:47

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I am also waiting for this patch to be confirmed by Canonical. This battery/overheating issue has got to be solved –  Mysterio Nov 13 '11 at 23:58
    
    
Excuse me if I'm missing something, but this doesn't seem like a dupe to me. The answer below seems to suggest otherwise to me. –  Christopher Kyle Horton Nov 14 '11 at 7:16
1  
Please don't just ask the same question again, the patch will be published as soon as enough people test it and the kernel team is confident that it works. –  Jorge Castro Nov 15 '11 at 0:06

3 Answers 3

up vote 9 down vote accepted

Hopefully, the patch will make it into the 3.0.0-13 kernel update for 11.10. You can help testing.

https://wiki.ubuntu.com/Kernel/PowerManagement

PS: ...and if you don't want to wait, apply the relevant workarounds now. Note, some of the workarounds are only relevant for Intel GPUs.

http://www.omgubuntu.co.uk/2011/11/linux-power-regression-overheating-problem-on-thinkpad-fixed/

Example

To add the pcie_aspm option, open /etc/default/grub for editing with
gksudo gedit /etc/default/grub

find the the GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" and change it to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=force", save and exit.

Then run sudo update-grub.

You can also verify whether Active State Power Management is enabled or not with
dmesg | grep -i aspm

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Please could you edit your answer to include the relevant workarounds like where and how to tweak the Grub config? –  Mysterio Nov 14 '11 at 6:29
    
Done! Let me know how it goes. –  mikewhatever Nov 14 '11 at 7:11
    
excellent answer +1 - just to say - this AU question and answer is still relevant to oneiric for intel users - askubuntu.com/questions/38117/… –  fossfreedom Nov 14 '11 at 10:18
    
I'm sorry but this patch refers to the old patch Phoronix released the new patch i915.i915_rc6=1 which they claim as a fix and not a workaround. I can verify that this patch( your answer) does not solve the heating/power bug. Could you please edit your answer with the new patch PLEASE –  Mysterio Nov 14 '11 at 14:42

A kernel update is due after the SRU tickets have tags changed from "testing-needed" to "testing-done" (after testing has actually been done.)

To find the SRU tickets try looking on this web page:
http://people.canonical.com/~ubuntu-archive/pending-sru.html

For 11.10 switching from 3.0.0-12.20 to 3.0.0-13.22 requires verification of the following tickets:

#737388 #782389 #794642 #816484 #851697 #854399 #854468 #855239
#857297 #860868 #862583 #865171 #866021 #868628 #870127 #872711
#872811 #876701 #884847
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Separate report for Kernel updates: status.qa.ubuntu.com/reports/kernel-bugs/reports/… Also note the Ubuntu Kernel Mapping: kernel.ubuntu.com/~kernel-ppa/info/kernel-version-map.html This list helps to determine which mainline version corresponds to the Ubuntu version. –  lgarzo Nov 15 '11 at 10:26

This is helping many people the installation of Jupiter controls, the energy expenditure

sudo add-apt-repository ppa: webupd8team/jupiter
sudo apt-get update
sudo apt-get install jupiter
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