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jakfish
Joined: 18 Jul 2008 Posts: 711
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Posted: Sat 28 Apr 2012, 07:38 Post subject:
Re: Temperature--Which Is the Coolest-Running Puppy? |
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Using pemasu's wondrous dpup exprimos, I'm successfully running puppy linux on a Lenovo S10-3t (a hybrid netbook/tablet).
The rub is, the S10 has no manual fan control, and even when I'm using the lowest level available in cpu frequency_scaling, my idle temperature continues to climb high into the 50's Celsius until the fan roars on.
This decreases battery life considerably, but even using fluppy (or other linux flavors completely), I can't get a stable idle temperature.
Using a late-model kernel (probably 2.8.*, with a 3.* being the optimum), could someone recommend a low-heat puppy?
Or do they all pretty much burn at similar cpu temperatures?
Thanks,
Jake
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firak
Joined: 14 Apr 2008 Posts: 157
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Posted: Sat 28 Apr 2012, 14:59 Post subject:
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saluky - is the most updated puppy for this kind of pc.
http://www.murga-linux.com/puppy/viewtopic.php?search_id=1790095507&t=73687
is the evolution of fluppy
I exeriece the same problem with eee neerbooks.
Basically - is an ardware problem.
I suggest you test a little moare the tools that saluky have.
- slleep mode - if it works it will cool your pc
- cpu frequency_scaling - thilstehood high 80% - means that the cpu will be lower untill it will need moare than 80% cpu - you can limit also cpu max speed in lower that will never reach the max.
- falash block in the browser- it will consume less cpu while borwsing - but allow you to play falsh with one click.
- ask in the saluky post - to be shure that cpu frequency_scaling - will be not in conflict with a acpcktool(power-saving) so if you set up freq-scaling it will not will be changed from power saving .
Maybe there are some manual control of the fan, but is it dangerous to change.
http://www.ehow.com/how_5833610_raise-fan-speeds-lenovo-laptop.html
I like atom based pc, neetbok etc, I hope you will find the way to enjoyt moare with puppy.
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jakfish
Joined: 18 Jul 2008 Posts: 711
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Posted: Sun 29 Apr 2012, 09:55 Post subject:
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Hi, firak,
Many thanks for your advice and links. I'm working with saluki right now. I'm having some trouble with xorg and the touchscreen (which I do not have with dpup exprimo), but I *think* saluki burns a little cooler.
As for that good link you sent, I have gone there, and find that the fan control doesn't work for the Lenovo netbook models. I guess the netbook BIOS are very stripped-down.
Isn't "power saving" the same as playing with settings in cpu_freq_scaling? Or are they two separate things?
Agai, thanks for your response,
Jake
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firak
Joined: 14 Apr 2008 Posts: 157
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Posted: Sun 29 Apr 2012, 10:45 Post subject:
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| jakfish wrote: | Hi, firak,
Isn't "power saving" the same as playing with settings in cpu_freq_scaling? Or are they two separate things?
Agai, thanks for your response,
Jake |
Hi, jekyfish
happy you like my suggetions, and undestand my poor englis.
I' running usually an other verson of puppy (macpup), on a neetbbok whit less tepmerature problem. for fun I test Saluky, and I see is a geat staff . one person made distro. Jamyah. I suggest you to continue this discussion iside the Saluky post, they can help moare than me. about xorg and touch screen.
Saluky have a simplified "harware conroll". You may find it in the botton bar - symbol of power. whit the right mouse you set up the Harware controll", that incude CPU.
You may play yourself with this 2 tools (cpu_freq_scaling and power save), saparately or toghether. Or ask inside the post of Saluky an opinion how to set up.
I guess that "power_save" is a semplified tool, maybe you can exlude freq_scaling, and maybe is moare usefool for you than "freq_scaling". if it works, in one click you can speed up the cpu if you need, and with one click you can relax the tablet in idle. Saluki Jamyah also made an effrort to support sleep-mode, than can be useffol to you.
(I like in neetbook olso to hide the bottom bar, for using the full screen, I think saluki have a button for that, or you can set the botton bar in "auto hide" )
Enjoy the tiunign of you puppy! ( saluki is an elegnat -fast - desert - dog )
(in the past I enjoy to tune up a 7"neetbok eepc701 - whit tepmerature problem, and use it as a big pc, becouse of puppy)
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jakfish
Joined: 18 Jul 2008 Posts: 711
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Posted: Sun 29 Apr 2012, 11:42 Post subject:
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Firak, I still use an early puppeee on my eee 900. Works like a charm--22 second cold boot. Fastest load-up on any of my machines
Jake
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Peterm321
Joined: 29 Jan 2009 Posts: 196
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Posted: Sun 29 Apr 2012, 22:37 Post subject:
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| jakfish wrote: | Or do they all pretty much burn at similar cpu temperatures?
Thanks,
Jake
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I am having excellent results with cpu scaling, but in my case I had to make an alteration to /etc/rc.d/rc.sysinit to load the correct scaling module, in my case "modprobe p4-clockmod" as the processor is a standard intel. Perhaps you have gone through all of this information and therefore excuse this posting?
Having loaded the p4-clockmod module, the directory
/sys/devices/system/cpu/cpu0/cpufreq
becomes available.
typing "cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies" in a terminal window lists the available frequencies.
One of these frequencies can be chosen, eg
echo -n 900000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
(as a root user). I have a few alias commands to change the frequencies, never used any other software but the CPU runs cool if a low frequency is selected.
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Lobster
Official Crustacean

Joined: 04 May 2005 Posts: 15109 Location: Paradox Realm
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Posted: Mon 30 Apr 2012, 02:44 Post subject:
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The coolest and coolest running Puppy is Puppi
No heatsink required.
Cool to the touch
http://puppylinux.org/wikka/PuppySchoolRaspberryPi
Underclocking is a known technique to improve reliability.
You can sometimes do this from the BIOS
Puppi does not have a BIOS
That's cool . . .
_________________ Puppy WIKI
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jakfish
Joined: 18 Jul 2008 Posts: 711
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Posted: Mon 30 Apr 2012, 02:58 Post subject:
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Many thanks to folks weighing in.
I have set cpu frequency_scaling, but the Lenovo only gives three speeds 1833, 1333, 1000.
I use the 1000mhz setting, and scaling when I'm surfing.
I've also literally propped up the netbook in the hopes that air circulation will save me a couple of degrees. I don't want to go for an actual cooling fan/cooling pad since that kind of defeats the purpose of a netbook's foormm factor.
Lobster, I wonder if the RaspberryPI will ever find its way to a laptop.
Jake
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