Still an issue on Karmic (and feeling the pain again on my macbook.
Having isight.fw loaded so the webcam works used to prevent this noise.
In Karmic though, the webcam works for me as usual using isight.fw, but
a lot of the time while running my laptop I get this noise anyway!)
--
Unable to set
Modifying max_cstate on a running kernel is necessary if you want to be able
to change it without reconfiguring/rebooting. e.g. I use C6 when on
airplanes for longer battery life, but disable it otherwise because it
causes a high-pitched noise on some hardware (my T500 among others). It's
pretty
For anyone trying to get this to work with more recent Ubuntu versions,
I can confirm that setting the kernel option works for me on my Thinkpad
T43 on Ubuntu 9.04.
Setting the max_cstate=3 was sufficient, and I am noticing little
difference in power consumption (when idle with the lowest screen
I've also heard you can modify the grub config, but that requires rebooting,
and if you're going to reboot, at least on my Lenovo T500, you can disable
higher cstate via a BIOS setting (I think it's under config -> power -> cpu
power management).
I rarely reboot my machine and instead using suspen
Apparently, you can add 'processor.max_cstate=2' to the kernel line in
you grub config and this will work in setting the max_cstate and thus
prevent the annoying whine.
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received this bug notification because yo
This problem persists in Intrepid and in Jaunty. In fact, in Jaunty you
can't even use the /etc/modprobe.d/options method anymore. Is this
going to be addressed or are we left with to deal with whining CPUs?
There should be some way that the user can set the max_cstate, whether
that is at run-ti
It looks like /sys/module/preprocessor/parameters/max_cstate is not available
in Intrepid, at least not in 2.6.27-7-generic.
It would be nice to be able to configure max_cstate at run-time. I run ubuntu
on my laptop (Lenovo T500) and switch between working in quiet and noisy
environments, usual
Victor's solution works well and it is straightforward. I'm using it on a Dell
D430 and the whining noise disappears. Unfortunately the CPU heating increases
too much and causes too active (noisy) fans. For standard use (editing txt) CPU
temperature is around 65 Celsius degrees when max_cstate i
Since Marcel states the /sys/module/processor/parameters/max_cstate
doesn't exist in the alpha5 version of the kernel in Intrepid, the issue
is apparently not resolved,and the only way to get max_cstate set is to
set it at boot time with modprobe.d options, just as it was before.
Setting probe opt
Hi,
/sys/module/processor/parameters/max_cstate doesn't exist in
2.6.27-2-generic of intrepid alpha5. Adding "options processor
max_cstate=2" to /etc/modprobe.d/options prevents cpu to use c3-state.
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received t
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
This issue also impacts use of VMware on certain CPUs.
See, for example,
http://www.phocean.net/?p=10
http://ubuntuforums.org/showthread.php?t=769948
and
https://help.ubuntu.com/community/VMware/Workstation
I find that with Hardy this problem is much less severe than it was in
Edgy, Feisty and G
It turns out it's possible to set the max_cstate without recompiling.
The reason the processor module isn't using the options is because it's
loaded from the initrd image. Luckily we can easily update that image.
Steps:
1. Add "options processor max_cstate=2" to /etc/modprobe.d/options
2. Update y
@jimmy smith
Maybe it's possible to turn the power-saving mode off through the BIOS? That's
what I have done with my ThinkPad T61.
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received this bug notification because you are a member of Ubuntu
Bugs, which
This is a problem on my first generation MacBook (Core2Duo 1.83GHz). The
CPU whines unless the power-saving mode is deactivated. When running Mac
OS X, I installed ShhhMBP, which does the trick. Under Ubuntu I can't
make it go away, even after changing power-saving modes using CPU
Frequency Scaling
I did notice that if using a usb mouse, then I get this annoying noise.
But if I disconnect it from the Dell D520 it stops.
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received this bug notification because you are a member of Ubuntu
Bugs, which is subsc
The 2.6.24 kernel has CONFIG_CPU_IDLE=y and apparently the patch for
max_cstate only works if this is not set. Not sure why exactly, but
presumably the patch will need some re-work (if still possible) to be
utilized with this new default.
--
Unable to set max_cstate on hardy kernel
https://bugs.l
Please fix this. Just upgraded to hardy and the noise makes using the
computer a painful experience (the high pitched noise actually gives me
headaches after a while).
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received this bug notification because you
FYI, passing the kernel boot param 'processor.max_cstate=2' will work ONLY if
you have the ACPI Processor compiled into the kernel (aka NOT as a module).
Recompiling the kernel with CONFIG_ACPI_PROCESSOR=y will allow you to set the
max_cstate upon boot.
This is probably not an acceptable soluti
Setting 'options processor max_cstate=2' in /etc/modprobe.d/options did
not solve the issue on Dell D420.
I'm going to be compiling a custom kernel for TuxOnIce anyway. Does
anyone have any idea what kernel options I might try to get rid of the
noise or expose the processor options in
/sys/module/
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
Assignee: (unassigned) => Ubuntu Kernel Team (ubuntu-kernel-team)
Status: Incomplete => Triaged
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received this bug notification becaus
@yop
the server kernel doesn't change anything on my dell latitude d430. it is as
loud as the generic one
anybody had a look at this (2.)?
http://www.mail-archive.com/linux-acpi%40vger.kernel.org/msg10354.html
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
Yo
@socketbind
Did you try the server kernel? It's not perfect silent, but much less noise
then the generic.
At least on my machine
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received this bug notification because you are a member of Ubuntu
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Please, bring this back, I have no other means to fix the CPU noise on
my machine.
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
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Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing
I did find that if using the server kernel it does not make this
annoying noise.
Linux ubuntu 2.6.24-12-server #1 SMP Wed Mar 12 23:34:17 UTC 2008 i686
GNU/Linux = Not whining noise
And have not added any max_cstate setting to any file.
--
Unable to set max_cstate on hardy kernel
https://bugs.l
Yes have tried it = no success.
If I do a cat, I get.
cat: /sys/module/processor/parameters/max_cstate: No such file or director
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
You received this bug notification because you are a member of Ubuntu
Bugs, which is
Hi yop,
Just curious if you've tried either of the following:
Add "options processor max_cstate=2" in /etc/modprobe.conf
or
Try the boot option "processor.max_cstate=2".
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
Unable to set max_cstate on hardy kernel
https://bugs.la
** Changed in: linux (Ubuntu)
Sourcepackagename: None => linux
** Tags added: regression
** Tags added: hardy
--
Unable to set max_cstate on hardy kernel
https://bugs.launchpad.net/bugs/206864
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