Novell LINUX ENTERPRISE DESKTOP 10 SP2 - DEPLOYMENT GUIDE 08-05-2008 Deployment Manual page 520

25.1.1 Power Conservation
The inclusion of energy-optimized system components when manufacturing laptops
contributes to their suitability for use without access to the electrical power grid. Their
contribution towards conservation of power is at least as important as that of the oper-
ating system. SUSE Linux Enterprise® supports various methods that influence the
power consumption of a laptop and have varying effects on the operating time under
battery power. The following list is in descending order of contribution towards power
conservation:
• Throttling the CPU speed
• Switching off the display illumination during pauses
• Manually adjusting the display illumination
• Disconnecting unused, hotplug-enabled accessories (USB CD-ROM, external
mouse, unused PCMCIA cards, etc.)
• Spinning down the hard disk when idling
Detailed background information about power management in SUSE Linux Enterprise
and about operating the YaST power management module is provided in
Power Management
504 Deployment Guide
(page 537).
Chapter 28,