Thanks Alan Pater.
Please mark this bug as Won't Fix. Alan's explanation is sufficient to
me (the original reporter.)
Cheers.
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https://bugs.launchpad.net/bugs/1246793
Dac Chartrand, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1246793/comments/26.
For future reference you can manage the status of your own bugs by
clicking on the current status in the yellow line and then choosing a
new status in
Looks like you have run into the infamous CPU frequency issue.
http://www.thinkwiki.org/wiki/Problem_with_CPU_frequency_scaling
Solution is to make sure you are running with high quality AC power.
Workaround is to edit /etc/default/grub
Find the following line and add processor.ignore_ppc=1
Dac Chartrand, for you personally with your X220, not someone else on
another report/forum, did this issue not occur in a release prior to
Saucy?
** Tags added: latest-bios-1.39
** Changed in: linux (Ubuntu)
Status: Confirmed = Incomplete
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Yes, this issue has occurred for me since Ubuntu 12.10
The workaround is to unplug, and then quickly replug, my laptop. (Or
reboot)
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Dac Chartrand, did this issue not occur in a release prior to Quantal?
** Tags added: quantal
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Title:
Battery charging slows down
I didn't this laptop before Quantal, I ran a desktop tower before, so I
cannot confirm.
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Title:
Battery charging slows down laptop
Sorry, to be more Precise :) I did in fact install Precise on this
laptop. (2012-06-12) but I don't remember having this problem.
I had both a desktop and a laptop at that time, and I was using the
desktop tower more often than the laptop. I upgraded to Quantal and
began using the laptop more
No, I will not test Lucid. Sorry.
Best regards,
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Title:
Battery charging slows down laptop
Status in “linux” package in Ubuntu:
Did this issue occur in a previous version of Ubuntu, or is this a new
issue?
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.12 kernel[0].
If this bug is fixed in the mainline kernel, please add
Thanks for the reply.
I am unable to test kernel-unable-to-test-upstream due to incompetence.
Sorry.
Yes, the bug has been around for a while, it also affects other distros,
ie. some comments in Bug #887793 (Comments 80, 81, ...) are related to
this problem.
Regards,
** Tags added:
apport information
** Tags added: apport-collected saucy
** Description changed:
Following up on Bug #962712 which was marked as invalid, instead of
fixed (gee, thanks...) I'm using Ubuntu 13.10 and this still happening
pretty badly.
Steps to reproduce:
1) Unplug laptop, plug-in
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