This bug was filed against a series that is no longer supported and so
is being marked as Won't Fix. If this issue still exists in a supported
series, please file a new bug.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
hi uboot,
There is a script /etc/init.d/ondemand which automatically sets ondemand
governor after waiting 60 seconds, so if performance governor is selected
manually immediately after startup, this might be resetted and fall back to
ondemand. By removing x-flag from etc/init.d/ondemand this
Gerhard, yes - it is definitely related to temperature.
At 85C the cpu throttles by 50% to 1.2GHz until it is cooled down below
50C I guess. At this point, I cannot select higher frequencies via
cpufreq-set. I reports a maximum selectable frequency of 1.2GHz. When it
is cooled down, it reports
This is still a problem in Lucid and Maverick, especially with
processors with many cores (ie. more than 4). Setting the threshold
lower greatly improves performance and responsiveness.
--
ondemand cpufreq governor broken on core 2 duo cpu
https://bugs.launchpad.net/bugs/475706
You received
I take it all back! Ondemand works for me.
The fan/cooling unit of my laptop was broken such that my cpu reached
85C, which causes throttling.
--
ondemand cpufreq governor broken on core 2 duo cpu
https://bugs.launchpad.net/bugs/475706
You received this bug notification because you are a member
For me, it is the same!
Ubuntu 10.04 AMD 64 on Thinkpad X61, Core2Duo T8300 2.4GHz
I tried kernel 2.6.32-20-generic and 2.6.31-20-generic.
And even worse: when selecting Performance Gouvernor for both cores and
running a multi threaded heavy load application, it won't stay at 2.4GHz
but drop to
Hi Dawid,
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
apport information
** Tags added: apport-collected
** Description changed:
I've installed fresh 9.10 and I'm with the defaults. This is how I've
noticed the following behaviour and I want to share it.
As I have two cores - I've setup two cpufreq scaling monitors applets.
By default
Hi there.
I'm using 10.04 since beta2 and the problem is the same. I'm using:
echo 15 /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
echo 15 /sys/devices/system/cpu/cpu1/cpufreq/ondemand/up_threshold
in /etc/rc.local to help the system speed up when required.
I haven't really
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
--
ondemand cpufreq governor broken on core 2 duo cpu
https://bugs.launchpad.net/bugs/475706
You received this bug notification because you are a member of Ubuntu
This bug also affects audio production on -rt kernel, lot of Xruns if jackd is
configured for low latencies.
My workaround: inserted these lines into /etc/rc.local:
(sleep 2 echo 20
/sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold)
(sleep 2 echo 20
I can second this bug report.
Summary: with ondemand on a fresh 9.10 installation on a Toshiba Tecra
M9 both CPUs were stuck at 800MHz. The system felt very sluggish.
I have done a fresh install of 9.10 on a Toshiba Tecra M9. After the default
installation cpufrequtils where missing.
After
When looking at this problem, please also have a look at the following
link, section Notes on cpufreq from my experiences:
http://www.pantz.org/software/cpufreq/usingcpufreqonlinux.html
--
ondemand cpufreq governor broken on core 2 duo cpu
https://bugs.launchpad.net/bugs/475706
You received this
** Package changed: ubuntu = linux (Ubuntu)
--
ondemand cpufreq governor broken on core 2 duo cpu
https://bugs.launchpad.net/bugs/475706
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
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Whe deciding about the importance of this particular bug please be aware
that this may create an impression that the Ubuntu performance is much
worse than it should really be.
--
ondemand cpufreq governor broken on core 2 duo cpu
https://bugs.launchpad.net/bugs/475706
You received this bug
** Attachment added: AlsaDevices.txt
http://launchpadlibrarian.net/35184996/AlsaDevices.txt
** Attachment added: AplayDevices.txt
http://launchpadlibrarian.net/35184998/AplayDevices.txt
** Attachment added: ArecordDevices.txt
http://launchpadlibrarian.net/35184999/ArecordDevices.txt
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