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# Chapter 4. Laptop Modules Notes

In order to use the laptop modules, you must have the kernel APM package installed in your kernel. Useful information on how to do this can be found at http://www.cs.utexas.edu/users/kharker/linux-laptop/apm.html and in the Battery Powered Linux mini-HOWTO at http://metalab.unc.edu/LDP/HOWTO/mini/Battery-Powered.html.

If you want the suspend and standby menu commands to work then you should install the Linux® apmd package (version 2.4 or later). If you want to use them from non-root accounts you must mark the apm command "set uid root".

To do this log on as root and enter:

     %chown root /usr/bin/apm;chmod +s /usr/bin/apm

| By doing this you allow any user of your system to put it into the suspend states - if you are the only user this should not be a problem. Also note that any program which has root access, can be a potential security problem. You should carefully determine if there is are any security concerns before giving any program root permissions.

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