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12 Posts

08-18-2011

Graz, Austria

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Re: X220 - fan constantly on / revving up and down

2011-09-14, 20:03 PM

@JNavas

I just had the fan replaced from Lenovo a couple of weeks ago, because I thought it is broken and the temperatures I am getting after the fan replacement mostly correlate to the temperatures prior the rep. So I doubt that they used the thermal paste wrong - twice.

 

Anyway, if I called Lenovo and told them that I believe the thermal pad/paste should be renewed. Do you think they would do that?Doing it myself would surely void warranty, especially if I accidentially damage something.

 

@Crmb

The current ambient temperature is 25.3° C. Hmm ... I don't think that the room temperature matters here at all, because the temperature differences are simply too big. My system runs at 49° C in idle with 4500 rpm and your system runs at 38° C in idle with 3000 rpm ... 

 

I rather think that Windows makes better use of the hardware's power saving capabilities and probably puts the CPU to a deeper sleep state, as I am also getting only 3.5 hours of battery life (6 cell) and people report of 5-6 hours under Windows. Those additional watts gotta get burned somewhere ...

 

It's kinda funny that my laptop is 16° C hotter and I don't have any problems with fan noise, while you do T_T.

 

Here some screenshots. It let the fan run at 4500 rpm and 3000 rpm for 10 minutes each.

 

4500 rpm @ 49° C

 

3000 rpm @ 54° C

 

 

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82 Posts

06-03-2011

Finland

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Re: X220 - fan constantly on / revving up and down

2011-09-14, 22:16 PM

So can someone please help me setting the TPFancontrol properly? I want my fan to be as quiet as possible due to the whining issue and don't want to risk anything. Installed the program and I can notice right away how hot my laptop is. This is what it tells me:

 

http://img847.imageshack.us/img847/87/44177790.jpg

 

Please help me out here...quickly. :) 

 

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82 Posts

06-03-2011

Finland

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Re: X220 - fan constantly on / revving up and down

2011-09-14, 22:29 PM
Well, I chose Smart Mode 2 now and it's showing CPU at 67 degrees and fan state 64 and speed 5466 RPM. :D Sheeeit.
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39 Posts

07-15-2011

France

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  • Message 864 of 921

Re: X220 - fan constantly on / revving up and down

2011-09-15, 0:35 AM

@jbuchgr The best would be to compare with another linux user.

What are you doing when you get 3.5hours ?

 

About your fan, you must have a correct one (and i have a "make high pitched sound" one).

When have you bought your x220 ? Mine is from july

 

 

@Kruger

I will let you know ASAP the settings in my .ini so you can copy/paste them and try

 

Some info before that : in TPF, if i remember corectly

"0" = 0 rpm

"1" = 2000

"2" = 3000

"3","4" = 3500

"5","6" = 4000

"7" = 4500

"128" = Bios Controled

 

So the idea is to have the fan stay below 3000 (to have no whine) most of the time. (light work, movie, etc)

I have set something like

0->40° = 0rpm "0"

40->65 = 2000rpm "1"

65+ = BIOS Controled "128"

 

 

 

 

 

 

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10 Posts

08-17-2011

Michigan

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  • Message 865 of 921

Re: X220 - fan constantly on / revving up and down

2011-09-15, 1:47 AM

wrote:

 

The current ambient temperature is 25.3° C. Hmm ... I don't think that the room temperature matters here at all, because the temperature differences are simply too big. My system runs at 49° C in idle with 4500 rpm and your system runs at 38° C in idle with 3000 rpm ... 

 

I rather think that Windows makes better use of the hardware's power saving capabilities and probably puts the CPU to a deeper sleep state, as I am also getting only 3.5 hours of battery life (6 cell) and people report of 5-6 hours under Windows. Those additional watts gotta get burned somewhere ...

 

It's kinda funny that my laptop is 16° C hotter and I don't have any problems with fan noise, while you do T_T.

 

Here some screenshots. It let the fan run at 4500 rpm and 3000 rpm for 10 minutes each.

 

4500 rpm @ 49° C

 

3000 rpm @ 54° C

 

 


I take it you're using a kernel >= 3.0.  The intel graphics driver has various bugs that surface when rc6 (a power management feature that I can't find very much about) is enabled on sandy bridge, so this option has been disabled in recent kernels.  See for example here. If you research this issue further, you'll be inevitably led to several phoronix articles, I urge you to ignore everything you read on that site if you want to keep your sanity.  Adding "i915.i915_enable_rc6=1" to your grub command line should significantly reduce power consumption and temperatures, but you might encounter some instabilities (I've been relatively lucky in this respect).

 

Also note that by default, a lot of power management features are disabled on linux, since they may (however slightly) affect performance, so there is some potential for tweaking power consumption even further.  Powertop2's suggestions are a good starting point, but I recommend you use a tool that enables power tweaks automatically such as tlp (sorry, documentation only seems to exist in German).

 

Under optimal conditions (idle, intel ssd, minimal brightness, bluetooth off) but with wifi on, my x220 tablet consumes somewhere between 7 and 7.5 watts according to acpi, the non-tablet version would probably consume even less power.  Windows people don't tend to post power consumption figures, but I'm sure that this is competive with power consumption under windows 7 (which, along with the mechanical hard drive that came with the computer, I've never touched).

 

Finally, here's my thinkfan.conf (note this requires a patch for thinkfan).  The problem with fan control scripts is the same as with automatic transmissions:  It's impossible to know the optimal gear to be in unless you can anticipate future load.

sensor /sys/devices/virtual/thermal/thermal_zone0/temp

(0,     0,      66)
(1,     56,     75)
(2,     68,     78)
(3,     71,     81)
(5,     74,     84)
(7,     77,     87)
(127,   80,     32767)

 This gives me a nice quiet machine (aside from the 'electronic' noise presumably coming from the voltage regulators) while still leading to lower temperatures at full load than Lenovo's fan control settings.  That's right, I don't turn the fan on until the sensor that's probably somewhere on the edge of the CPU hits 66 degrees.  No offense jbuchgr, but I don't think you know what a quiet room sounds like ;)

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12 Posts

08-18-2011

Graz, Austria

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Re: X220 - fan constantly on / revving up and down

2011-09-15, 15:20 PM

@tjaeger

 

Yes, I do use > 3.0.

 

Where can I get the current power consumption of my system? Is this information stored in the system? I don't have access to a wattmeter at the moment.

 

Fedora crashes when using the TLP scripts on boot. I am not sure why yet, have to do some more debugging, although I was already using a lot of the tweaks which TLP applys. Those tweaks are mostly from lesswatts.org/powertop anyway.

 

Thanks for the info about the "disengaged" - level. I didn't know that and I've yet to encounter a situation where this would be needed - luckily (;

 

What battery runtime do you get from your machine? I am getting 3:30h with wifi and bluetooth turned off btw.

 

@Crmb

 

Mine is from july as well (; I bought it in Munich, however I had the fan exchanged once and they put the exact same fan in again (checked model number). There is only one kind of fan for our hardware configuration. The i7 systems for example use a different fan.

 

I have the "old" fan, which was replaced by Lenovo support still at home and I've recently attached it to a power source. There is no high pitched noise when you operate only the fan. As tjaeger correctly stated the high pitched noise probably comes from the mainboard and is somehow "pushed to you" by the fan. So it arguably is Intel's problem and Lenovo is not gonna do anything, unless Intel acknowledges and fixes the problem :\

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10 Posts

08-17-2011

Michigan

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  • Message 867 of 921

Re: X220 - fan constantly on / revving up and down

2011-09-15, 15:51 PM

wrote:

 

Yes, I do use > 3.0.

 

Where can I get the current power consumption of my system? Is this information stored in the system? I don't have access to a wattmeter at the moment.

 

Fedora crashes when using the TLP scripts on boot. I am not sure why yet, have to do some more debugging, although I was already using a lot of the tweaks which TLP applys. Those tweaks are mostly from lesswatts.org/powertop anyway.

 

Thanks for the info about the "disengaged" - level. I didn't know that and I've yet to encounter a situation where this would be needed - luckily (;

 

What battery runtime do you get from your machine? I am getting 3:30h with wifi and bluetooth turned off btw.


The savings you'll get from TLP are tiny compared with what enable_rc6 will do if you're running a 3.0 kernel.

 

It looks like you're using gnome shell. The gnome developers are hell-bent on removing such useless "geek stuff" from the interface, but you'll probably still be able to launch gnome-power-statistics from the command line to get a power consumption graph.  Powertop should also have this info, although on my system, it only works with powertop1.

 

I'm frankly never away long enough from a power supply to make a good estimate (why does lenovo not offer an option to buy the computer with a cheaper and less bulky 3-cell battery?), but based on my limited experience, I would guess that I would get at least around 6 hours of battery life under realistic conditions (wifi on, light usage, medium brightness).  The reason I care about power consumption is noise, not battery life.

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12 Posts

08-18-2011

Graz, Austria

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  • Message 868 of 921

Re: X220 - fan constantly on / revving up and down

2011-09-15, 16:40 PM

Well enabling the R6 stuff is pretty decent (; My laptop operates now on average at 10° C less. While browsing it has 43 - 46° C now. Thanks a lot for that tip!

 

I also use pcie_aspm=force, as there seems to be another regression since kernel 2.6.38 [1] [2] in the PCI-E power management. Since I bought my laptop in july and the regression exists since june, I'm eager to see how much battery life I am gonna get now (; Stay tuned!

 

[1] https://bugzilla.redhat.com/show_bug.cgi?id=727579#c6

[2] http://www.phoronix.com/scan.php?page=article&item=linux_2638_aspm&num=1

 

EDIT1:

Now beat this (; - 35° C in idle @ 5400 rpm

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7 Posts

07-20-2011

Finland

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  • Message 869 of 921

Re: X220 - fan constantly on / revving up and down

2011-09-15, 18:55 PM

 


tjaeger wrote: 
...

 Adding "i915.i915_enable_rc6=1" to your grub command line

...



Cool. This brings my CPU temp down around 10 degrees, at least in light use, and definitely seems to mitigate the fan noise problem. My CPU is i7-2620M.

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12 Posts

08-18-2011

Graz, Austria

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  • Message 870 of 921

Re: X220 - fan constantly on / revving up and down

2011-09-15, 21:01 PM

With the RC6 and PCI-E powersaving settings enabled, I am getting about 5:40h in battery life browsing, writing and watching some youtube video.

 

According to the guys at engadget, they laptop should last 7 - 8 hours [1]. If anyone does have more hints on powersaving under Linux, I would very much appreciate it.

 

[1] http://www.engadget.com/2011/03/18/lenovo-thinkpad-x220-review/

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