Kahel OS Forum

Open for Change

1. rosa
   Member

   I recently encountered a problem with kahelOS in my laptop. I was using the battery power and even though the battery is not yet totally empty, the power went off without giving any warning. Do I need to change any of my settings?

   Posted 10 months ago #

2. joelbryan
   Member

   Kahel by default will use the 'performance' power management
   settings, here's the necessary steps to solve this problem.

   1. Right-click the panel and choose 'Add to Panel...' then add the 'CPU
   Frequency Scaling Monitor'. Depending on your CPU, if your using
   multiple-cores, you might want to add 2 applets.

   2. Right-click the applet, then choose Preferences, where you can set
   what CPU are you going to control. If you have multiple-cores, you will
   see CPU 0, 1, n...

   3. Click the applet then choose how would you like to use your CPU,
   options are the following.

   * ondemand - increase the CPU usage when an application demands it, if
   no applications is running the CPU will go back to the lowest frequency.

   * conservative - by default the CPU will use the lowest frequency,
   when an application requires it, the CPU frequency will increment
   gradually.

   * powersave - The CPU will always run on the lowest frequency even if
   an application launches, this is suitable for battery powered hardware
   like laptops and smaller computers to save more battery life.

   * performance - The CPU will always run on the highest frequency even
   if no applications is running or requires it. This is recommended if you
   require CPU intensive processing like compiling, rendering, running
   games, etc.

   Additionally you can install the 'laptop-mode-tools' package by running:

   'sudo pacman -S laptop-mode-tools'

   then insert 'laptop-mode' in your rc.conf to start the service
   automatically upon boot.

   'sudo nano /etc/rc.conf'

   then add the line, 'laptop-mode' in the DAEMONS=(... ) list

   so the line

   'DAEMONS=(@syslog-ng @netfs @crond dbus hal ...)'

   will become

   'DAEMONS=(@syslog-ng @netfs @crond dbus hal laptop-mode ...)'

   additionally you can add the '@' to start it on background or '!' to not
   start it.

   Posted 10 months ago #

3. junelle
   Member

   Did this help? Why is there no reply from the one who asked.

   Posted 8 months ago #

4. rosa
   Member

   Yes. It sure did. Never encountered that problem anymore :) Thanks joelbryan for your help :)

   Posted 8 months ago #

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