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Aaron Lewis | 16 May 2012 14:31
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Any one worked out the mic mute led on latest X220 ?

Hi,

I'm running latest Arch Linux ( Linux kerenl 3.3+ ) / Ubuntu 12.04 (3.2 +)

I got two problems:

1) acpi_listen has no output of mic mute button on Arch Linux , not
sure if it's bug of kernel or acpid ;

2) I could bind mic mute button in Ubuntu 12.04 ,  with acpid.
 But led won't toggle its light.

Any kernel / acpid patches available ?

Thanks

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Aaron Lewis - PGP: 0xDFE6C29E ( http://keyserver.veridis.com )
Finger Print: 9482 448F C7C3 896C 1DFE 7DD3 2492 A7D0 DFE6 C29E

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Henrique de Moraes Holschuh | 16 May 2012 16:08
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Re: Any one worked out the mic mute led on latest X220 ?

On Wed, 16 May 2012, Aaron Lewis wrote:
> 1) acpi_listen has no output of mic mute button on Arch Linux , not
> sure if it's bug of kernel or acpid ;

Check whether it outputs data to the *keyboard* and not through ACPI.

> 2) I could bind mic mute button in Ubuntu 12.04 ,  with acpid.
>  But led won't toggle its light.

Yeah, software control of that LED is still unavailable, and it is not for a
lack of knowing how to toggle it.  The issue is a bit more complicated.

thinkpad-acpi is fully configurable for the hotkey support.  If the mic mute
button is one of the ACPI buttons, at most you need to set the thinkpad-acpi
keymap and enable the button in the hotkey mask.  If Ubuntu has that
working, you can just copy the thinkpad-acpi keymap and hotkey mask from
Ubuntu.

Instructions are provided in Documentation/laptop/thinkpad-acpi.txt.  How to
read/write the input device keymap is distro-specific.

--

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh

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Julien Iguchi-Cartigny | 28 May 2012 12:23
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Ubuntu overheating since 11.10 for a lot of thinkpad computers

Hello,

Since ubuntu 11.10, some thinkpad computers suffer from overheating and
reboot (due to excessive heat). You can follow the bug report here:

<https://bugs.launchpad.net/ubuntu/+source/linux/+bug/751689>

After changing thinfan speed level, the problem stays. I've been trying
some solutions but no clue for now:

<http://askubuntu.com/questions/133030/overheating-and-reboot-with-ubuntu-11-10-and-12-04-on-thinpad-t500>

A recent comment in the ubuntu bug report shows a linux bug with the
same effect and its resolution on acpi:

<https://bugzilla.kernel.org/show_bug.cgi?id=42858>

sadly, this fix is already present in Linux 12.04, but correct me if i'm
wrong, the acpi managment is different for thinkpad, no ? If yes, could
be this linux bug present in the thinkpad_acpi module ?

Anyway, if you have any idea how to diagnose the problem, i'm ready to help.

Thank you.

Cheers,

Julien

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Julien Iguchi-Cartigny | 28 May 2012 12:54
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Re: Ubuntu overheating since 11.10 for a lot of thinkpad computers

Let's do a more useful correct bug report.

Note that i'm not sure it is related with thinpad_acpi but since i've
no clues....

My system is Thinkpad T500 with ubuntu 12.04 (3.2.0-24-generic-pae).

Since ubuntu 11.10, I've noticed that my computer reboots when high
CPU charge due to excessive heat (more than 100°).

Furthermore, battery lifetime has been cut in half (less than 2 hours
instead of 4 to 5 hours).

I've tried the following solutions without any results:

1> === ASPM problem since linux 3.0 ===

I've the following message from kernel:

$ dmesg | grep ASPM
[    0.000000] PCIe ASPM is forcibly enabled
[    0.164377] ACPI FADT declares the system doesn't support PCIe
ASPM, so disable it

If i try pcie_aspm=force as kernel switch, I've the following output:

$ dmesg | grep ASPM
[    0.000000] PCIe ASPM is forcibly enabled
[    0.197865] ACPI FADT declares the system doesn't support PCIe
ASPM, so disable it
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Ted Ts'o | 28 May 2012 17:25
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Re: Ubuntu overheating since 11.10 for a lot of thinkpad computers

On Mon, May 28, 2012 at 12:54:38PM +0200, Julien Iguchi-Cartigny wrote:
> Let's do a more useful correct bug report.
> 
> Note that i'm not sure it is related with thinpad_acpi but since i've
> no clues....
> 
> My system is Thinkpad T500 with ubuntu 12.04 (3.2.0-24-generic-pae).
> 
> Since ubuntu 11.10, I've noticed that my computer reboots when high
> CPU charge due to excessive heat (more than 100°).

What is your CPU and graphics chipset are you using?  I have a T410
which will reliably demonstrate this problem if I use two displays
(i.e., if I plug in a displayport connector and ask the graphics chip
to drive the LCD planel and the external monitor at the same time.
The problem also is there (although not so bad) if I'm driving only an
external monitor if it has a very high resolution (i.e., a very big
36" display).

My colleagues don't have this problem, but they have been using
Thinkpads with dual core processors.  I have a special-order quad-core
processor system, and I see the thermal problems if I actually try to
use all 4 cores at the same time.

I opened up my machine to see if the fan was defective, and it did not
appear to be so.  My current suspicion is that Lenovo simply was too
aggressive with their thermal engineering, and that many Linux
developers have the good taste to use the Intel chipset to avoid the
Nvidia proprietary drivers.  However, since this is a corporate-built
machine, I have been inflicted with Nvidia graphics, and I believe
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Julien Iguchi-Cartigny | 28 May 2012 19:15
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Re: Ubuntu overheating since 11.10 for a lot of thinkpad computers

On 05/28/2012 05:25 PM, Ted Ts'o wrote:
> On Mon, May 28, 2012 at 12:54:38PM +0200, Julien Iguchi-Cartigny wrote:
>> Let's do a more useful correct bug report.
>>
>> Note that i'm not sure it is related with thinpad_acpi but since i've
>> no clues....
>>
>> My system is Thinkpad T500 with ubuntu 12.04 (3.2.0-24-generic-pae).
>>
>> Since ubuntu 11.10, I've noticed that my computer reboots when high
>> CPU charge due to excessive heat (more than 100°).
> 
> What is your CPU and graphics chipset are you using?  

$ cat /proc/cpuinfo

model name	: Intel(R) Core(TM)2 Duo CPU     T9600   <at>  2.80GHz
model name	: Intel(R) Core(TM)2 Duo CPU     T9600   <at>  2.80GHz

(dual core...)

$ lspci | grep Graphics

00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series
Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset
Integrated Graphics Controller (rev 07)

I think it is Intel Chipsets
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Ted Ts'o | 28 May 2012 20:52
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Re: Ubuntu overheating since 11.10 for a lot of thinkpad computers

On Mon, May 28, 2012 at 07:15:36PM +0200, Julien Iguchi-Cartigny wrote:
> > 
> > So at least for me, it's a hardware problem,... 
> >
> 
> I'm not sure of this:
> - it starts around the kernel 3.0, before this everything was fine (and
> I was using this computer since 1 year and half).
> - the rather high level of Turbo mode seems strange (around 20-25% when
> idle...)
> - the presence of a similar bug in the "classical" acpi linux driver

Yup, your system is a dual-core system with the Intel graphics.

I have the quad core:

     Intel(R) Core(TM) i7 CPU       M 620   <at>  2.67GHz

with "discrete" (i.e., Nvidia) graphics.

At least for me, the problem was also evident using a 2.6.38 kernel,
and I'm not seeing excessive Turbo mode.  Unless, of course, I have an
external monitor enabled, and I do a "make -j 8" kernel build, and
then I can watch the temperature go up and up until thermal shutdown
happens.

> The best way maybe to launch such investigation in the launchpad bug
> report (which has the advantage to have a lot of people with a similar
> problem).
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Ralf Baechle | 29 May 2012 15:29
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ACPI kernel messages on Thinkpad T520 42395GU

Running either Fedora 16 kernel 3.3.6-3 or 3.3.7-1 (dunno which one, the
logs were cycles since the last reboot) I got:

May 29 11:06:24 h7 kernel: [268304.557020] thinkpad_acpi: unknown possible thermal alarm or keyboard
event received
May 29 11:06:24 h7 kernel: [268304.557025] thinkpad_acpi: unhandled HKEY event 0x6040
May 29 11:06:24 h7 kernel: [268304.557027] thinkpad_acpi: please report the conditions when this event
happened to ibm-acpi-devel@...
May 29 11:06:24 h7 kernel: [268304.557388] thinkpad_acpi: EC reports that Thermal Table has changed

Let me you if you need further data.

  Ralf

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