WebLog Olivier Berger

Et j'y coordonnerai la session "Développement" du thème technique.

Venez nombreux : les interventions et les rencontres sont toujours d'un bon niveau aux RMLL

Plus de news en suivant #RMLL2010 sur votre logiciel de micro-blog préféré (apr exemple ici).

I've tried and apply the technique shown in Measuring Freerunner battery life for my FreeRunner which runs SHR-T.

Unfortunately, I couldn't recompile the wkalrm program on the freerunner (problems of compilation chain, I think). So I decided to use atd to insert an at command which would wake up the FR... but that isn't exactly easy since no at command seems packaged for the atd-over-fso that comes with SHR-T (actually, there's an at script provided in the initial atd version it was based on).

Thanks to help provided on the SHR ML, I've written this short resume-at shell script that can be used to insert an at command/script that will wake up the FR after a certain amount of minutes :

#!/bin/bash

# Will program an at job that will just execute in some number of minutes (passed in args)
# This script will do nothing, but can be interesting to wakeup the machine

# It uses atd-over-fso for atd execution

now=`date +'%s'`

minutes=$1
let "seconds = minutes * 60"

# add some minutes to now
let "time = now + seconds"

# filename for the at script
filename="/var/spool/at/$time.resume-at"

# Install the script
cat >$filename << EOF
#!/bin/sh

this="/var/spool/at/\$0"

echo \$this >>/tmp/resume-at.log
date >>/tmp/resume-at.log

rm \$this
echo "update" > /var/spool/at/trigger

EOF

# Make the at script executable
chmod +x $filename

# initialize the logs file 
touch /tmp/resume-at.log

# Notify atd-over-fso that a new script was installed
echo "update" > /var/spool/at/trigger

Now, all that is left to do is to change the battery monitoring script to :

#!/bin/bash

while :
do

echo ===========================================
       date
       cat /sys/class/power_supply/battery/capacity
       cat /sys/class/i2c-adapter/i2c-0/0-0073/resume_reason
       cat /sys/class/i2c-adapter/i2c-0/0-0073/neo1973-resume.0/resume_reason
       #/root/wkalrm +30m
       /home/root/resume-at 30
       sleep 20
       apm -s
done

The script has now been run, and here are the results : discharge in 66 hours and 10 minutes :

Hope this helps.

I own an old Dell Inspiron 4000 laptop whose trackstick / trackpoint (the blue little joystick in the middle of the keyboard) has become really annoying : typing on the keyboard, or even touching the surface of the laptop generate parasite movements of the pointer.

I've looked for a way to disable it, and found one way using hal (since X is auto-configured in Ubuntu now), by adding the following file as /etc/hal/fdi/policy/10-disabletrackstick.fdi :

<?xml version="1.0" encoding="UTF-8"?>
<deviceinfo version="0.2">
  <device>
     <match key="info.product" contains="TPPS/2 IBM TrackPoint">
       <remove key="input.x11_driver"/>
     </match>
  </device>
</deviceinfo>

Thanks to this post by Brice Goglin for he hint on how to disable a device.

Et encore une édition des RMLL à laquelle je vais contribuer (notamment en tant que coordinateur du thème "développement").

Aujourd'hui, départ pour Nantes.

La suite (si le wifi fonctionne) sur #rmll2009.

On the way to the OSS2009 social event, we had the surprise to get offered beverages and snacks (including alcoholic ones), which is quite unusual, in my opinion.

Among the snacks there were the Wild Chips with the packaging bellow :

Doesn't the upper-right logo look familiar ?

OK, I admit, I'm a bit obsessed

I've had difficulties with power management on my P4B266 mainboard (yes, pretty old but still works).

Here are a couple tweaks I've done (which work with Debian lenny) :

1. passing acpi=force to the kernel to enable acpi
2. tweaking the HAL suspend quirks (see bellow) in /usr/share/hal/fdi/information/10freedesktop/20-video-quirk-pm-asus.fdi
3. tweaking s2ram's options with S2RAM_OPTS="-f -a 3" in /etc/pm/config.d/defaults

--- /usr/share/hal/fdi/information/10freedesktop/20-video-quirk-pm-asus.fdi.orig    2009-03-28 19:29:39.000000000 +0100
+++ /usr/share/hal/fdi/information/10freedesktop/20-video-quirk-pm-asus.fdi    2009-03-28 19:29:44.000000000 +0100
@@ -108,5 +108,12 @@
       <merge key="power_management.quirk.none" type="bool">true</merge>
     </match>
 
+    <match key="system.firmware.version" prefix="ASUS P4B266 ACPI BIOS Revision">
+      <match key="system.firmware.version" contains=" 1010">
+    <merge key="power_management.quirk.s3_bios" type="bool">true</merge>
+    <merge key="power_management.quirk.s3_mode" type="bool">true</merge>
+      </match>
+    </match>
+
   </device>
 </deviceinfo>

Un Nabaztag, c'est joli, ça remue les oreilles, mais ça sert pas trop à grand chose, faut le reconnaître.

Sauf qu'il est maintenant capable de faire le répondeur de la messagerie vocale Free. Et ça, c'est bien !

Plus de détails là : http://www.nabazfree.com/. Attention : ne pas oublier de sélectionner le type de mail avec le message en pièce jointe dans l'interface de configuration de la messagerie chez Free.

Décidément, les législateurs français ont vraiment du mal avec l'Internet

Thanks to the good fellows, I've been advocated and accepted as Debian Maintainer.

Now I only need to take more time to work on Debian