Toralf Förster | 7 Jun 11:22 2010
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ThinkPad T400 : should kernel option "reboot=pci" be hard coded ?

Since some kernel version (IIRC since 2.6.31) it is necessary to boot the 
linux kernel with that option to prevent an extra 9 seconds delay during 
reboot.
I found this tip on the LKML -and now I'm wondering whether this option should 
be hard coded in the kernel sources b/c it seems to be necessary for current 
kernels too.

--

-- 
MfG/Sincerely
Toralf Förster

pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3

Matthew Garrett | 7 Jun 16:11 2010

Re: ThinkPad T400 : should kernel option "reboot=pci" be hard coded ?

On Mon, Jun 07, 2010 at 11:22:21AM +0200, Toralf Förster wrote:
> Since some kernel version (IIRC since 2.6.31) it is necessary to boot the 
> linux kernel with that option to prevent an extra 9 seconds delay during 
> reboot.
> I found this tip on the LKML -and now I'm wondering whether this option should 
> be hard coded in the kernel sources b/c it seems to be necessary for current 
> kernels too.

No, the best thing to do would be to figure out what changed to require 
the extra 9 seconds. Are you able to work out which the last kernel 
release without this timeout was?

--

-- 
Matthew Garrett | mjg59@...

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sebib | 8 Jun 20:28 2010
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LenovoThinkPad T510 report

Hello.

As I tried to get all my notebooks acpi-capabilities working I consulted the kernels documentation of the
'thinkpad-acpi'-kernel-module, which asks me to report to this mailinglist if I need the
'force_load=1' module-parameter to load it.

I am using Gentoo Linux with kernel 2.6.32-gentoo-r7 (sys-kernel/gentoo-sources, not vanilla) on an
Lenovo ThinkPad T510 (NTH4JGE). I dont know if it matters, but here is the output of lspci:

00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 02)
00:01.0 PCI bridge: Intel Corporation Core Processor PCI Express x16 Root Port (rev 02)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:16.3 Serial controller: Intel Corporation 5 Series/3400 Series Chipset KT Controller (rev 06)
00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06)
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller
(rev 06)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 06)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 06)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 06)
00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 06)
00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 06)
00:1d.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller
(rev 06)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a6)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 06)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 6 port SATA AHCI Controller (rev 06)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 06)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal
Subsystem (rev 06)
01:00.0 VGA compatible controller: nVidia Corporation NVIDIA NVS 3100M (rev a2)
(Continue reading)

Jacob Appelbaum | 8 Jun 02:53 2010
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thinkpad_acpi

Hello,

I'm testing a newish Thinkpad T410 and I had a really odd lockup moments
ago. This is with Ubuntu 10.4. The laptop is currently using the
following kernel: 2.6.32-22-server #36-Ubuntu SMP Thu Jun 3 20:38:33 UTC
2010 x86_64 GNU/Linux

I had some music playing with light network activity; I was engaged in a
little light bedtime C programming. Suddenly, my entire X session locked
up. The screen froze and I was unable to change to a virtual console or
anything useful. The music continued to play until I forced a shutdown.

While perusing the logs on disk after a reboot, I noticed the following:

kernel: [ 7982.108732] thinkpad_acpi: temperatures (Celsius): 50 0 0 0 0
0 0 0
kernel: [ 7982.108744] thinkpad_acpi: unhandled HKEY event 0x6000
kernel: [ 7982.108747] thinkpad_acpi: please report the conditions when
this event happened to ibm-acpi-devel@...
kernel: [ 7982.846291] thinkpad_acpi: temperatures (Celsius): 50 0 0 0 0
0 0 0
kernel: [ 7982.846302] thinkpad_acpi: unhandled HKEY event 0x6000
kernel: [ 7982.846305] thinkpad_acpi: please report the conditions when
this event happened to ibm-acpi-devel@...
kernel: [ 7983.147429] thinkpad_acpi: temperatures (Celsius): 50 0 0 0 0
0 0 0
kernel: [ 7983.147444] thinkpad_acpi: unhandled HKEY event 0x6000
kernel: [ 7983.147449] thinkpad_acpi: please report the conditions when
this event happened to ibm-acpi-devel@...
kernel: [ 7983.551485] thinkpad_acpi: temperatures (Celsius): 50 0 0 0 0
(Continue reading)

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Re: thinkpad_acpi

On Tue, 08 Jun 2010, Jacob Appelbaum wrote:
> I'm testing a newish Thinkpad T410 and I had a really odd lockup moments
> ago. This is with Ubuntu 10.4. The laptop is currently using the

Yeah, people are complaining that it happens on Ubuntu.  I have seen
fglrx do it, and I have also seen KDE4 do it (Debian).  I don't know
what could be causing it on Ubuntu 10.4.

> kernel: [ 7982.108744] thinkpad_acpi: unhandled HKEY event 0x6000
> kernel: [ 7982.108747] thinkpad_acpi: please report the conditions when
> this event happened to ibm-acpi-devel@...

I have to ask Lenovo about it, but it is not likely to be the reason for
the lockup moments.

--

-- 
  "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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Re: LenovoThinkPad T510 report

On Tue, 08 Jun 2010, sebib@... wrote:
> As I tried to get all my notebooks acpi-capabilities working I consulted the kernels documentation of the
'thinkpad-acpi'-kernel-module, which asks me to report to this mailinglist if I need the
'force_load=1' module-parameter to load it.

Please get the latest patch in ibm-acpi.sf.net, it should work with the
T510, and report back what works :-)

> /proc/acpi/ibm/video:
> {lcd,crt,dvi}_enable, {lcd,crt,dvi}_disable, video_switch and expand_toggle do nothing
> auto_enable and disable changes the value but i can not see that anything happens

Might be fixed in the ibm-acpi.sf.net release.  Not needed in your thinkpad
anyway, you should use RandR functionality in the X server.

> /etc/acpi/ibm/volume:
> 'mute' is reported correctly and i am able to mute by 'echo mute...'

Does it really honestly mutes, or does it just look like it muted?

> 'up'/'down'/'level <x>' take affect on the reported volume-level but not on the volume itself

Your thinkpad doesn't have up/down/level support, so that's expected.  The
driver is a bit confused because of the force_load thing :p

> /proc/acpi/ibm/cmos: nothing happens...
> /proc/acpi/ibm/beep seems not to work
> /proc/acpi/ibm/thermal: not present
> /proc/acpi/ibm/ecdump: not present

(Continue reading)

Toralf Förster | 9 Jun 13:43 2010
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Re: ThinkPad T400 : should kernel option "reboot=pci" be hard coded ?

Hi,

Matthew Garrett wrote at 16:11:03
> On Mon, Jun 07, 2010 at 11:22:21AM +0200, Toralf Förster wrote:
> > Since some kernel version (IIRC since 2.6.31) it is necessary to boot the
> > linux kernel with that option to prevent an extra 9 seconds delay during
> > reboot.
> > I found this tip on the LKML -and now I'm wondering whether this option
> > should be hard coded in the kernel sources b/c it seems to be necessary
> > for current kernels too.
> 
> No, the best thing to do would be to figure out what changed to require
> the extra 9 seconds. Are you able to work out which the last kernel
> release without this timeout was?
The delay exists since 2.6.27, versions before them I can't test due to 
udev-149 which don't work together with version < 2.6.27.

Since version 2.6.29 that kernel boot parameter avoids the extra delay, 2.6.28 
needs the 9 sec pause independend from what I specify during boot.

--

-- 
MfG/Kind regards
Toralf Förster

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Nick Bowler | 9 Jun 15:26 2010

Re: ThinkPad T400 : should kernel option "reboot=pci" be hard coded ?

On 11:22 Mon 07 Jun     , Toralf Förster wrote:
> Since some kernel version (IIRC since 2.6.31) it is necessary to boot the 
> linux kernel with that option to prevent an extra 9 seconds delay during 
> reboot.
> I found this tip on the LKML -and now I'm wondering whether this option should 
> be hard coded in the kernel sources b/c it seems to be necessary for current 
> kernels too.

Wow!  That delay has been frustrating me since I bought my T500 last
year.  I had tried a couple reboot= options (triple, acpi) and they all
had the delay, so I figured it was something inherent with the system
firmware.

But reboot=pci works perfectly!  Thanks for the tip.

--

-- 
Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)
Markus Malkusch | 9 Jun 18:38 2010
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unhandled HKEY event 0x6000

My kernel tells me to write this mail to you:

thinkpad_acpi: THERMAL ALERT: unknown thermal alarm received
thinkpad_acpi: temperatures (Celsius): 43 0 0 0 0 0 0 0
thinkpad_acpi: unhandled HKEY event 0x6000
thinkpad_acpi: please report the conditions when this event happened to ibm-
acpi-devel@...

The conditions are pressing the NumLk-button on a Lenovo ThinkPad W701.

malkusch <at> woodstock ~ $ uname -a
Linux woodstock 2.6.34-gentoo #6 SMP PREEMPT Tue Jun 8 18:31:57 CEST 2010 
x86_64 Intel(R) Core(TM) i7 CPU Q 720  <at>  1.60GHz GenuineIntel GNU/Linux

Markus Malkusch

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Jacob Appelbaum | 9 Jun 03:11 2010
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Re: thinkpad_acpi

On 06/09/2010 12:01 AM, Henrique de Moraes Holschuh wrote:
> On Tue, 08 Jun 2010, Jacob Appelbaum wrote:
>> I'm testing a newish Thinkpad T410 and I had a really odd lockup moments
>> ago. This is with Ubuntu 10.4. The laptop is currently using the
> 
> Yeah, people are complaining that it happens on Ubuntu.  I have seen
> fglrx do it, and I have also seen KDE4 do it (Debian).  I don't know
> what could be causing it on Ubuntu 10.4.
> 

I believe that it was compiz. I've since removed compiz and I've not had
a single issue.

>> kernel: [ 7982.108744] thinkpad_acpi: unhandled HKEY event 0x6000
>> kernel: [ 7982.108747] thinkpad_acpi: please report the conditions when
>> this event happened to ibm-acpi-devel@...
> 
> I have to ask Lenovo about it, but it is not likely to be the reason for
> the lockup moments.
> 

It may be related but it does seem unlikely. Though since the removal of
compiz, I've not seen another thinkpad_acpi error message in my kernel
message buffer.

All the best,
Jacob

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(Continue reading)


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