[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete = Expired
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Confirmed with Kubuntu 13.4 on a Lenovo B590
** Changed in: linux (Ubuntu)
Status: Expired = Confirmed
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Title:
Can not adjust CPU
Miroslav Milanovic, 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
[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete = Expired
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Nicolai_J., this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue?
Can you try with the latest development release of Ubuntu? ISO CD images
are available from http://cdimage.ubuntu.com/releases/ .
If it remains an issue,
*** This bug is a duplicate of bug 706089 ***
https://bugs.launchpad.net/bugs/706089
** This bug has been marked a duplicate of bug 706089
Frequency scaling doesn't work in current kernels
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*** This bug is a duplicate of bug 706089 ***
https://bugs.launchpad.net/bugs/706089
Fix from bug #706089 works, marked as duplicate.
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Title:
I don't have problems frequency scalling at Lucid's default kernel (2.6.32.X).
There it works perfectly (via liveCD).
Linux 2.6.35.X (which is installed default by Maverick) doesn't work due of
ACPI problems.
Therefore this bug is not a duplicate of #706089.
PS: At whose who affects this bug,
Please don't mark this as a duplicate unless you're sure your hardware
is the same.
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Title:
Can not adjust CPU frequency
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@Brendan Donegan: couldn't it still be that both problems have the same
cause, although the hardware is different? The symptoms seem exactly the
same (lowest frequency, same cpu /sys files contents etc.)...
@firefuel: I would be very interested if you could check if Lucid (not
only Maverick and
A.Kromic,
It could well be, but with (potential) kernel bugs the best practice is
to never duplicate, as the problem could be architecture specific or
caused by certain drivers. Best to let them be investigated
individually.
It's different with user space bugs as the code will be the same no
It's possible this is a duplicate of Bug #706089 which I reported
earlier.
A test to check if this is the same case would be to use an older
kernel, up to the exact version 2.6.32-24 because in my case frequency
scaling works normally that way, but not with later kernels! I guess it
is the same
The system is generally slower than before. It the content of
cpuinfo_cur_freq seems to be correct.
For me, it sounds like:
Even the driver is broken or cpufreq-selector do nothing (security policies
conflict or bad configuration?).
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Title:
Can not adjust CPU frequency
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Hi,
Thanks for taking the time to report this bug. Just one more piece of
info that might be useful for debugging this issue (since it does seem
to be specific to your CPU or system at the moment) is the contents of
the following files after running cpufreq-selector:
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq:
80
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors:
conservative ondemand userspace powersave performance
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:
performance
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Thanks for providing the info. I would say this is definitely a bug
then. I'd lean towards medium importance since it's stopping you from
getting all your CPU cycles (apparently). That's assuming the content of
cpuinfo_cur_freq isn't false somehow.
** Changed in: linux (Ubuntu)
Status:
Marking as Medium per brendand's request.
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
** Tags added: regression-release
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