SuSE Linux: Versions since 8.0
You want to use APM (Advanced Power Management). APM is particularly interesting for notebooks.
The following settings can be defined in the file /etc/sysconfig/powermanagement:
APMD_SET_CLOCK_ON_RESUME="no"
If the wrong time is displayed after a suspend or standby.
APMD_SUSPEND_ON_AC="yes"
Suspend and standby are executed if the notebook is connected to the
power supply.
APMD_PCMCIA_SUSPEND_ON_SUSPEND="no"
The value 'yes' is only advisable for a PCMCIA package without APM
support. From SuSE Linux 6.4 on,
the SuSE PCMCIA package is already compiled with APM support and this
option can be set to 'no'.
APMD_PCMCIA_EJECT_ON_SUSPEND="no"
This option should only be set to "yes" if a PCMCIA card does not
"survive" the suspend mode.
APMD_LEAVE_X_BEFORE_SUSPEND="no"
APMD_LEAVE_X_BEFORE_STANDBY="no"
This option is relevant up to XFree 3.3.6 only. From XFree 4.0.x on,
the X server supports APM.
APMD_STOP_SOUND_BEFORE_SUSPEND="no"
The sound no longer works after a suspend. Possible settings are
"alsa","oss", or "kernel".
All possible setting options are available at /usr/share/doc/packages/apmd
Note: The configuration of APM services exceeds the scope of the free installation support.