Posted 09 October 2007 - 06:55 AM
I assume you're referring to an LCD monitor? When your computer is off, switch off the power to both computer and monitor, unless you have any wake requirement for the computer, such as programmed video recording. Even the small power consumption of equipment in standby mode adds up over long time and large numbers of units. Gear in standby mode is also vulnerable to damage from mains spikes, eg a storm while you're not there to unplug things.
There's no significant difference to thermal stress between using standby mode and shutting power off. Thermal stress is caused by repeated heating up and cooling down - going from display to standby (power saving) when you're not using the computer is hardly any different to going from display to power fully off as far as temperature variation goes. What is best avoided, both from the viewpoint of thermal stress and backlight life, is having very short wake/sleep cycles, eg a few minutes. Having the computer turn the monitor off into power saving mode after a few minutes of disuse, then continually waking it up again to keep working is hard on the backlight. Have a decent acive time, maybe 15 minutes, so that if you really do wander off for an hour, it goes into power saving, but not if you just duck off to get a drink. And yes, there is little value in a screen-saver for an LCD.
Top 5 things that never get done: