It is highly likely the system is still overclocked, ubuntu is just
reporting the wrong speed.
see bug 379873: https://bugs.launchpad.net/ubuntu/+bug/379873
--
Cpu frequency scaling is limited to stock speeds
https://bugs.launchpad.net/bugs/132403
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this problem has not changed in karmic with 2.6.31 and 2.6.32 (mainline), and
lucid with 2.6.32
i have to disable speedstep in the BIOS to enable the overclocked frequency.
on other kernels (phc for example) it's possible to unload the acpi-
cpufreq module as a workaround - but the module is not
I doubt that marking the whole bug as invalid is the way to go. A BIOS
update might have solved PetriL's problem although he seems to be the
only one because forums are full of people missing speedstep with
overclocked Intel cpu's. My E6600 is well supported from my
motherboard's BIOS and works ove
BIOS upgrade fixed the problem. Marking as Invalid based on this.
** Changed in: linux (Ubuntu)
Status: Incomplete => Invalid
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"Does this mean that the BIOS upgrade fixed your problems?"
Yes, it does.
My working assumption (read: guess, based on observed behavior) is that
the available steps are read through some BIOS calls, and when your CPU
is newer than your BIOS, the data is incomplete and Speedstep can't
therefore w
ooops... you're right I didn't check the value changed according the cpu is
under load or not !!
it probably was always at full speed ...
2009/4/14 Amit Kucheria
> Hmm.. I don't see any changes to bogomips in my /proc/cpuinfo when I
> change the frequency from the frequency-applet
>
> Only my cp
Hmm.. I don't see any changes to bogomips in my /proc/cpuinfo when I
change the frequency from the frequency-applet
Only my cpu MHz value changes.
On Tue, Apr 14, 2009 at 10:34:08AM -, Jeremy Vies wrote:
> I've got a core2duo e7300. It runs normally at 2.66GHz (10*266). I've just
> changed FS
I've got a core2duo e7300. It runs normally at 2.66GHz (10*266). I've just
changed FSB to 333.
I use Ubuntu out of box settings, so I think it's ondemand.
2009/4/14 Amit Kucheria
> Can you provide details of your processor, your cpufreq driver and
> governor?
>
> On Tue, Apr 14, 2009 at 09:27:0
Can you provide details of your processor, your cpufreq driver and
governor?
On Tue, Apr 14, 2009 at 09:27:01AM -, Jeremy Vies wrote:
> Hi all,
>
> I've just tested this week-end with a Jaunty up-to-date. The frequency
> scaling worked, it was only the value displayed by the kernel that is wr
Hi all,
I've just tested this week-end with a Jaunty up-to-date. The frequency
scaling worked, it was only the value displayed by the kernel that is wrong.
In /proc/cpuinfo, I could read the stock value for cpu speed, whereas the
bogomips was changed !
JV
2009/4/14 Amit Kucheria
> Testing with
Does this mean that the BIOS upgrade fixed your problems?
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Testing with the latest pre-release of Jaunty 9.04 will also help us
identify if this exists in the latest upcoming release. Refer to
http://www.ubuntu.com/testing/jaunty/beta . Please let us know.
** Changed in: linux (Ubuntu)
Status: Triaged => Incomplete
--
Cpu frequency scaling is li
I have to pull back my earlier astonishment a bit:
I upgraded the BIOS on the system, and now Speedstep is back.
So ignore the rant-ish above. Clearly there are deeper issues than just
Linux kernel at play...
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Cpu frequency scaling is limited to stock speeds
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Could anyone please explain what happened to this bug, and why?
This problem occurs with NON-overclocked Core 2 Duo 8500 (3.16 GHz) on a
stock Intel board that does not even support overclocking in the first
place.
Just updating the CPU to a spiffier one (on fully-patched Hardy Heron
x86) brought
Is there any progress on this? I have the same problem with a Q6600
(which uses to E6600 chips) on Intrepid with 2.6.27-7-generic.
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Bugs,
Same issue remains in Intrepid Ibex too -- check bug #286133.
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I quickly tried out Xubuntu Intrepid Ibex 8.10 Alpha5 Live CD and there
is still no frequency scaling with my overclocked E6600 on a Gigabyte
965P-DS4 (works under Windows XP). Frequency scaling however works as
soon as I switch back to stock speeds in BIOS and reboot the LiveCD.
-> issue remains
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the
upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would
appreciate it if you could please test this newer 2.6.27 Ubuntu kernel.
There are one of two ways you should be able to test:
1) If you are comfortable
Just to add I am running 8.04 current to 7/24/08. If you could please
give us some insight we would really appreciate it.
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Bugs, which i
I can reproduce this: a non-overclocked Core 2 Duo Quad Q8600 running
Hardy has two speeds available: 1.66 GHz and 2.39GHz. The actual speed
of 3.01 or 3.5 GHz can only be obtained by disabling frequency scaling
in the BIOS settings.
Pretty painful for those of us using it for scientific computing
Same with me: Gigabyte EP35-DS3R with Core 2 Duo E8400 (stock freq 3.0
GHz) - cpufreq scaling works as expected.
When the frequency is manually increased (I tried 400 with multiplier of
9), cpufreq module does not even load - i.e. no frequence scaling
available.
--
Cpu frequency scaling is limi
Yet another complaint about the CPU scaling! Why is it so difficult for
the Ubuntu devs to get this working out-of-box? This problem has been
around for as long as i have used Ubuntu (since 5.10), why is it such a
big deal to add cpufrequtils to the standard install? Come on, get it
sorted for once
I can reproduce this: a non-overclocked Core 2 Duo E8500 running Hardy
has two speeds available: 2.00 GHz and 3.00 GHz. The actual speed of
3.16GHz can only be obtained by disabling frequency scaling in the BIOS
settings.
$ cpufreq-infocpufrequtils 002: cpufreq-info (C) Dominik Brodowski 2004-2006
The problem is again here with fresh new Hardy setup:
# uname -r
2.6.24-16-generic
# cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 36
model name : AMD Turion(tm) 64 Mobile Technology ML-34
stepping: 2
cpu MHz : 1800
I'm having the same problem - first thought it was a specific problem with dual
core processors and opened a bug (#213119).
After seeing this thread I went back to stock speed and voilla - cpu scaling
works...
cpu is dual core E2200
mobo is gigabyte ga-p35-ds3l
distro is hardy beta, kernel is 2.
i would like to add to the comments that i have an hp dv2756 laptop and
there is no frequency scalling.
this is running a stock T9300 processor. will not load the acpi_cpufreq
module. earlier i have checked the bios by de/reconstructing using
intel's compiler and it gave no errors.
attached dme
Sorry: should say that I'm on Gutsy running Hardy's 2.6.24-11-generic
kernel.
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Can confirm with a E8500 clocked to 3.8Ghz with a Gigabyte-P35 board.
Chugs along fine, but only at the maximum clock -- no speedstep.
[EMAIL PROTECTED]:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(
I would just like to add that my stock Intel Core 2 Duo e8400 runs only
at max speed and states that scaling is unsupported with this CPU.
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Cpu frequency scaling is limited to stock speeds
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Running overclocked 45nm Intel Core 2 Duo, E8400, kernel 2.6.22-14,
Gutsy. Speedstep not working.
[EMAIL PROTECTED]:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz
ste
This bug still exists in the hardy alpha 5 kernel
Frequency scaling on over clocked Core 2 Duo processors does not use the
reported speed, but the original stockspeeds, while the Windows
implementation of speedstep does work right.
Any comments of the dev's ?
--
Cpu frequency scaling is lim
Loading acer_acpi and wmi-acer modules seems to have solved the problem
completely.
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If that can help, I've just noted that frequency scaling works correctly (on my
machine) with the linux kernel as provided by OpenSUSE 10.3:
#uname -r
2.6.22.5-31-default
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I have the same kind of problem with this cpu (see bugreport
https://bugs.launchpad.net/bugs/175310):
$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 36
model name : AMD Turion(tm) 64 Mobile Technology ML-34
stepping: 2
cpu
** Changed in: linux (Ubuntu)
Status: Incomplete => Triaged
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Hi Leann,
I have tried 2.6.24-1 as you requested. The new kernel gives a lot of
problems at this stage (i can't get X starting properly for instance),
so i did some preliminary tests from the command line.
So far it seems like the bug still exists: cpufreq says the hardware
limit is 2.39ghz, even
Hi litemotiv,
The Hardy Heron kernel was recently uploaded for testing. We'd really
appreciate it if you could try testing with this newer kernel and verify
if this issue still exists. I wasn't sure if this was in fact the
kernel you were using when you said you were running "Hardy Pre Alpha".
U
** Tags removed: hardy-kernel-candidate
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Thanks for the update. I'm opened a new task against the actively
developed kernel. However, I'm closing the report against linux-
source-2.6.22 as it does not meet the criteria for a stable release
update. You can learn more about the stable release update process at
https://wiki.ubuntu.com/Sta
** Tags added: hardy-kernel-candidate
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Hi Leann,
Thank you for taking the time to check up on this bug. The problem still
persists on 7.10 Gutsy and Hardy Pre-Alpha which i am currently using:
2.6.22-14-generic #1 SMP
cpufreqd 2.2.1-2
[changing stock speed of 2.4ghz to 3ghz in bios]
> cpufreq-set -g userspace
> cpufreq-set -u 3
Hi litemotiv,
Thank you for taking the time to report this bug and helping to make
Ubuntu better. You reported this bug a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue for you with the 7.10 Gutsy Gibbon release? You can download and
try
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