Re: [64studio-users] noise suppression ?

[Gustin Johnson]

Dave Phillips wrote:
> Greetings,
>
<snip>
> However, one last niggle remains (well, maybe it's the last one). My
> machine also runs Ubuntu 8.10 from another partition on the disk, and it
> runs much quieter with Intrepid than with 64 Studio's Hardy . Is there a
> CPU fan control in use in 8.10 that wasn't in Hardy ? Can someone

There were some ACPI improvements in 8.10 that were not there in 8.04
that include fan controls.  I noticed this on my laptop.  I cannot
remember how I fixed it in hardy since I have been running Intrepid for
a while now.

> explain why this is happening and/or suggest a fix ? I can live with it,
> but the noise is aggravating.
>
What chipset and CPU are you using.



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[Quentin Harley-2]

The noise has everything to do with the great performance you are
experiencing.  As Ralf said, the CPU is always running at full speed,
giving us the edge in terms of low latency audio and plug-in performance.

As with all things there is a tradeoff...

What I could suggest is to use a cooler platform for your laptop.  What
this does is using larger fans to cool the laptop environment, to ensure
effective cooling by lower internal fan speeds.

This kernel runs wonderfully on my main system (Athlon X2 3800+) and even
on that system I hear slightly higher fan speeds than with the 2.6.21
kernel, but I suddenly have a much more powerful system without
overclocking

Cheers,
Quentin

> Gustin Johnson wrote:
>> There were some ACPI improvements in 8.10 that were not there in 8.04
>> that include fan controls.  I noticed this on my laptop.  I cannot
>> remember how I fixed it in hardy since I have been running Intrepid for
>> a while now.
>>
>>
>>> explain why this is happening and/or suggest a fix ? I can live with
>>> it,
>>> but the noise is aggravating.
>>>
>>>
>> What chipset and CPU are you using.
>>
>>
>
> CPU is an AMD Turion-X2 64. Not sure what other chipset you want to know
> about ?
>
> Best,
>
> dp
>
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>

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[Gustin Johnson]

What is the mother board chipset?  AMD and nVidia both make turion chipsets.  It should be obvious if you run lspci with no flags.

------Original Message------
From: Dave Phillips
To: Gustin Johnson
Cc: 64 Studio development list
Cc: 64 Studio-users mailing list
Subject: Re: [64studio-users] noise suppression ?
Sent: Feb 27, 2009 19:13

Gustin Johnson wrote:

> There were some ACPI improvements in 8.10 that were not there in 8.04
> that include fan controls.  I noticed this on my laptop.  I cannot
> remember how I fixed it in hardy since I have been running Intrepid for
> a while now.
>
>  
>> explain why this is happening and/or suggest a fix ? I can live with it,
>> but the noise is aggravating.
>>
>>    
> What chipset and CPU are you using.
>
>  

CPU is an AMD Turion-X2 64. Not sure what other chipset you want to know
about ?

Best,

dp



Sent from my BlackBerry device on the Rogers Wireless Network
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[Gustin Johnson]

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quentin@... wrote:
> The noise has everything to do with the great performance you are
> experiencing.  As Ralf said, the CPU is always running at full speed,
> giving us the edge in terms of low latency audio and plug-in performance.
>
Are we sure that the CPU is actually running full tilt?  Usually this
requires some manual intervention to achieve.    perhaps a watch -n 1
grep MHz /proc/cpuinfo

> As with all things there is a tradeoff...
>
> What I could suggest is to use a cooler platform for your laptop.  What
> this does is using larger fans to cool the laptop environment, to ensure
> effective cooling by lower internal fan speeds.

For some of the lighter work I actually lock my laptop to the lower
speed via the KDE ACPI applet.
>
> This kernel runs wonderfully on my main system (Athlon X2 3800+) and even
> on that system I hear slightly higher fan speeds than with the 2.6.21
> kernel, but I suddenly have a much more powerful system without
> overclocking
>
On my Laptop I noticed that the fan was running at top speed but this
did match with the actual CPU freq.  The CPU was properly scaling but
this did not effect the fan speed.  I wish I had documented what I did
to solve this, I have a foggy recollection that it was related to the
nvidia binary driver (oh the evil binary blob again).  Probably googled
for "Ubuntu 8.04 acpi fan speed".  This was on two laptops, one Turion
X2 and the other a Core2 Duo, both with an nVidia video adaptor, and the
Turion with an nVIdia Chipset (on a barely related note, the Turion is
the worst computer I have ever owned).

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[Gustin Johnson]

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Dave Phillips wrote:

> Gustin Johnson wrote:
>> On my Laptop I noticed that the fan was running at top speed but this
>> did match with the actual CPU freq.  The CPU was properly scaling but
>> this did not effect the fan speed.  I wish I had documented what I did
>> to solve this, I have a foggy recollection that it was related to the
>> nvidia binary driver (oh the evil binary blob again).  Probably googled
>> for "Ubuntu 8.04 acpi fan speed".  This was on two laptops, one Turion
>> X2 and the other a Core2 Duo, both with an nVidia video adaptor, and the
>> Turion with an nVIdia Chipset (on a barely related note, the Turion is
>> the worst computer I have ever owned).
>>
>>  
>
> Hi Gustin,
>
> I read a rumor (on LAU ?) to the effect that the Turion was a bad risk

I have had problems with the AM2 and derivative platforms.  Right now I
only buy Intel based computers.  ATI is back on the radar as a result of
the radeonhd driver for their latest devices, but for chipsets I am an
Intel only guy right now.

> for Linux, but I must say that the machine has been a champ here. 64
> Studio 3.0 is the first full 64-bit system I've been able to install and
> enjoy on this hardware, and almost everything is working beautifully
> now. I've yet to test the wireless and webcam, I don't use those devices
> very often.
>
Wireless was a nightmare (thank you broadcomm and HP, you could not have
done worse if you tried).  The USB bus was never stable.  If I pushed
enough data through it would reset and then be unusable until a reboot.
 Wireless USB (like an rt2500usb I have kicking around) would not work
for more than a minute or so.  The two USB wifi adaptors I have work
with the Intel based netbooks and laptop that I have.  In short USB was
barely functional up to an including the day I got rid of the thing.

Mine did not have a webcam, but there were numerous bugs over the two
years that I had this pile-o-crap.  It was more than a year and several
BIOS updates before it was even useable on a day to day basis.

> Btw, I also googled for a solution last night, got no joy. Maybe because
> I was in a considerably altered state... Anyway, I'll search with your

Most of the solutions I found pointed to the nVidia drivers as the
problem.  Personally I grab my nVidia driver directly from nVidia.com, I
don't bother with the ones provided by the distro.

> suggested terms, hopefully will come up with a fix.

I wish you luck.  May your Turion experience be better than mine.  The
laptop I just ordered has Intel through and through (CPU, Chipset, wifi,
ethernet, and GPU) as all the drivers are upstream.  It only took me 10
years to realize that compromise with binary blobs merely wastes your
time and is not worth it in the long run.  I guess I am not a fast learner.

Hth,
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[Gustin Johnson]

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Ralf Mardorf wrote:

> PS:
>
>> Gustin Johnson wrote:
>>  
>>> I have had problems with the AM2
>>>    
>> I'm too ;). A lot of people are fine with AM2 for Linux ;) but they have
>> troubles with Intel stuff.
>>
>> I guess 64 Studio 2.1 comes with the IBM ACPI kernel module for AMD 64
>> bit hardware, the relevant informations for ACPI and fan speed control
>> might be this one:
>>
>> http://www.thinkwiki.org/wiki/How_to_control_fan_speed
>>
>           Using a stock kernel
>
>     *NOTE!*
>     Fan control operations are disabled by default for safety reasons.
>
>     *Linux Kernel 2.6.22 and Above (ibm-acpi has been replaced by
>     thinkpad-acpi <http://www.thinkwiki.org/wiki/Thinkpad-acpi>)*
>
>     To enable fan control, the module parameter fan_control=1 must be
>     given to thinkpad-acpi.
>
>     For example, in Ubuntu 8.04 (Hardy Heron), add the following to
>     /etc/modprobe.d/options: options thinkpad_acpi fan_control=1
>
> If I understand it correctly 64 Studio 3.0 beta2 is Hardy.
>

Yes 64Studio 3 beta is based on Hardy, though Studio uses its own kernel.

I came across this link when I was having fan issues.  I am on a Dell
Latitude and the thinkpad modules did nothing.  For me the problem was
with the nVidia driver.  I upgraded to the latest one from the nvidia
website and the fan behaved normally after that.  Weird.
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[Gustin Johnson]

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Ralf Mardorf wrote:
<snip>
>
> If a fan becomes a pain and no software can manage it, it's still
> possible to do it by a circuit. In the web there are a lot of howtoes,
> e.g. this German with pics how to solder it:
> http://www.modding-faq.de/index.php?artid=507&page=2
> This seems to be no good one, but there might be some in the web. Maybe
> it's hard to iron SMD for a laptop, but I guess it's possible to get
> such hardware for less money.
>
Hardware surgery is a bad idea unless you really enjoy this sort of
thing and can afford to void your warranty.

Anyway, I just did a clean install of Ubuntu 8.10 on my laptop and the
fan was at full tilt after the install.  I then installed the latest
packaged nvidia driver 177 (even though I usually get the nvidia driver
from nvidia.com and install manually) via the "Hardware Drivers"
utility.  After a reboot the fan behaves normally.

Hth,

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