laptop-mode-tools not setting /proc/sys/vm/laptop_mode

[Ákos Maróy]

Binary package hint: laptop-mode-tools

it seems the laptop-mode-tools services is not seting /proc/sys/vm/laptop_mode properly:

$ sudo /etc/init.d/laptop-mode start
$ cat /proc/sys/vm/laptop_mode
0
$ cat /etc/laptop-mode/laptop-mode.conf | grep ENABLE
ENABLE_LAPTOP_MODE_ON_BATTERY=1
ENABLE_LAPTOP_MODE_ON_AC=1
ENABLE_LAPTOP_MODE_WHEN_LID_CLOSED=1

I'd expect /proc/sys/vm/laptop_mode to contain 5 there instead of 0

[Ritesh Raj Sarraf (rrs)]

Can you enable VERBOSE_OUTPUT in /etc/laptop-mode/laptop-mode.conf and then
try restarting ?

On Friday 05 Mar 2010 11:30:51 you wrote:
> it seems the laptop-mode-tools services is not seting
> /proc/sys/vm/laptop_mode properly:
>
> $ sudo /etc/init.d/laptop-mode start
> $ cat /proc/sys/vm/laptop_mode
> 0
> $ cat /etc/laptop-mode/laptop-mode.conf | grep ENABLE
> ENABLE_LAPTOP_MODE_ON_BATTERY=1
> ENABLE_LAPTOP_MODE_ON_AC=1
> ENABLE_LAPTOP_MODE_WHEN_LID_CLOSED=1
>

--
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."

[Ákos Maróy (akos-maroy)]

I did, but there's no additional output - would it be in dmesg or syslog?

$ grep VERBOSE /etc/laptop-mode/laptop-mode.conf
VERBOSE_OUTPUT=1
$ sudo /etc/init.d/laptop-mode restart
$ cat /proc/sys/vm/laptop_mode
0
$ tail /var/log/messages
Mar 5 09:13:51 tonkachi kernel: [ 158.716022] Registered led device: iwl-phy0::radio
Mar 5 09:13:51 tonkachi kernel: [ 158.716052] Registered led device: iwl-phy0::assoc
Mar 5 09:13:51 tonkachi kernel: [ 158.716067] Registered led device: iwl-phy0::RX
Mar 5 09:13:51 tonkachi kernel: [ 158.716084] Registered led device: iwl-phy0::TX
Mar 5 09:13:51 tonkachi kernel: [ 158.791866] ADDRCONF(NETDEV_UP): wlan0: link is not ready
Mar 5 09:14:27 tonkachi kernel: [ 194.740198] compiz.real[2731]: segfault at 29b1000 ip 00007fcafc4fe8f0 sp 00007fff31e34c88 error 4 in libc-2.10.1.so[7fcafc47c000+166000]
Mar 5 09:14:27 tonkachi kernel: [ 194.947346] Registered led device: iwl-phy0::radio
Mar 5 09:14:27 tonkachi kernel: [ 194.947376] Registered led device: iwl-phy0::assoc
Mar 5 09:14:27 tonkachi kernel: [ 194.947403] Registered led device: iwl-phy0::RX
Mar 5 09:14:27 tonkachi kernel: [ 194.947416] Registered led device: iwl-phy0::TX
$ dmesg | tail
[ 158.716067] Registered led device: iwl-phy0::RX
[ 158.716084] Registered led device: iwl-phy0::TX
[ 158.791866] ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 194.740198] compiz.real[2731]: segfault at 29b1000 ip 00007fcafc4fe8f0 sp 00007fff31e34c88 error 4 in libc-2.10.1.so[7fcafc47c000+166000]
[ 194.947346] Registered led device: iwl-phy0::radio
[ 194.947376] Registered led device: iwl-phy0::assoc
[ 194.947403] Registered led device: iwl-phy0::RX
[ 194.947416] Registered led device: iwl-phy0::TX
[ 195.001203] wlan0: Selected IBSS BSSID 02:18:41:93:62:2f based on configured SSID
[ 205.397553] wlan0: no IPv6 routers present

[Ritesh Raj Sarraf (rrs)]

On Friday 05 Mar 2010 13:47:54 you wrote:
> I did, but there's no additional output - would it be in dmesg or
> syslog?

sorry. I meant was to enable VERBOSE_OUTPUT and then send the output of the
following 2 commands:

* /etc/init.d/laptop-mode status
* /etc/init.d/laptop-mode restart

Regards,
Ritesh
--
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."

[Ákos Maróy (akos-maroy)]

here you go - still nothing:

# grep VERBOSE /etc/laptop-mode/laptop-mode.conf
VERBOSE_OUTPUT=1
# /etc/init.d/laptop-mode status
# /etc/init.d/laptop-mode restart

but, looking into the init.d script above, it starts with:

# Check that laptop-mode is enabled
if [ -f /etc/default/laptop-mode ]; then
       . /etc/default/laptop-mode;
fi

hm, I don't have such a file - should it have come from the package?

looking on:

# FIXME: this shouldn't be configured there
if [ -f /etc/default/acpi-support ]; then
       . /etc/default/acpi-support;
fi

I have this file, but here, laptop mode is disabled:

# grep ENABLE /etc/default/acpi-support
ENABLE_LAPTOP_MODE=false

this file comes from the acpi-support package. I removed it, actually had to purge it so that the this config file is removed. now I get:

# /etc/init.d/laptop-mode status
Laptop mode status:

Mounts:
   /dev/mapper/isw_cdfcbdcfed_RAID-05 on / type ext4 (rw,noatime,errors=remount-ro)
   proc on /proc type proc (rw)
   none on /sys type sysfs (rw,noexec,nosuid,nodev)
   none on /sys/fs/fuse/connections type fusectl (rw)
   none on /sys/kernel/debug type debugfs (rw)
   none on /sys/kernel/security type securityfs (rw)
   udev on /dev type tmpfs (rw,mode=0755)
   none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
   none on /dev/shm type tmpfs (rw,nosuid,nodev)
   none on /var/run type tmpfs (rw,nosuid,mode=0755)
   none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
   none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
   /dev/mapper/isw_cdfcbdcfed_RAID-01 on /mnt/windows type fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
   /dev/mapper/isw_cdfcbdcfed_RAID-02 on /mnt/recovery type fuseblk (rw,nosuid,nodev,allow_other,default_permissions,blksize=4096)
   binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
   gvfs-fuse-daemon on /home/maroy/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=maroy)

Drive power status:

   /dev/sda:
    drive state is: active/idle

   /dev/sdb:
    drive state is: active/idle

   /dev/sdc:
    drive state is: unknown

   /dev/mapper/isw_cdfcbdcfed_RAID-0:
    drive state is: unknown

   /dev/mapper/isw_cdfcbdcfed_RAID-01:
    drive state is: unknown

   /dev/mapper/isw_cdfcbdcfed_RAID-02:
    drive state is: unknown

   /dev/mapper/isw_cdfcbdcfed_RAID-03:
    drive state is: unknown

   /dev/mapper/isw_cdfcbdcfed_RAID-05:
    drive state is: unknown

   /dev/mapper/isw_cdfcbdcfed_RAID-06:
    drive state is: unknown

(NOTE: drive settings affected by Laptop Mode cannot be retrieved.)

Readahead states:
   /dev/mapper/isw_cdfcbdcfed_RAID-05: 128 kB
   /dev/mapper/isw_cdfcbdcfed_RAID-01: 128 kB
   /dev/mapper/isw_cdfcbdcfed_RAID-02: 128 kB

Laptop Mode Tools is NOT allowed to run: /var/run/laptop-mode-tools/enabled does not exist.

/proc/sys/vm/laptop_mode:
   0

/proc/sys/vm/dirty_ratio:
   20

/proc/sys/vm/dirty_background_ratio:
   10

/proc/sys/vm/dirty_expire_centisecs:
   3000

/proc/sys/vm/dirty_writeback_centisecs:
   500

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_cur_freq:
   1600000

/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_fre...

[Ritesh Raj Sarraf (rrs)]

On Saturday 06 Mar 2010 19:41:15 you wrote:
> so the question is, why is acpi-support sabotaging laptop mode? or,
> actually the init script itself says:
>
> # FIXME: this shouldn't be configured there
> if [ -f /etc/default/acpi-support ]; then
> . /etc/default/acpi-support;
> fi

It is not really a sabotage. The ubuntu integration of laptop-mode-tools is
something like this way. I think they trigger laptop-mode-tools through pm-
utils.

As upstream we don't do this, but ubuntu as part of their integration, must
have designed it to be triggered differently.

I think you should just check it thoroughly and report on this bug. Someone
from the ubuntu team could have a look at it.

Regards,
Ritesh
--
Ritesh Raj Sarraf
RESEARCHUT - http://www.researchut.com
"Necessity is the mother of invention."

[Ákos Maróy (akos-maroy)]

I see. other then filing a bug at the ubuntu bug tracker, how would I have someone from the ubuntu team looking into it?