On Sun, 2010-04-18 at 17:57 +0300, Dj YB wrote: > is thee a difference in terms of powersaving between manually > shutting down the monitor (pushing the button) and the screensaver > monitor powering off. That depends on your monitor. If it's power switch is a mechanical one, one that has two physically different on/off positions, it actually cuts off the power when you turn it off. So, yes, turning your monitor off by hand will stop it using any power, at all. Conversely, if your monitor has a soft power switch, it never turns off. It'll go into some sort of standby mode, which is still using power. With some equipment, the standby power is significant. With such equipment, you may find that the monitor uses the same amount of power in standby mode whether turned off on the monitor, or remotely by the computer. Or there may be different levels of powering down, some monitors have several levels, since they power down enough to affect recovery speed, the manufacturers have built in options that are less annoying (rapid turn on, versus more waiting before you get to see a picture). That will depend on the monitor, the graphics card, and the drivers (whether the monitor and graphics card can do it, and whether the computer can control them). > moreover, is the graphic card keep on working the same when the > screensaver poweroff the monitor? I keep meaning to remotely log into my computer to check that. Like wondering whether that fridge light really goes off when you close the door, I've wondered if the system was smart enough to do nothing with the display rendering when the screen was inert. On my laptop, I'd often notice that if I closed the lid, which is set to simply turn off the display, and not shutdown the OS, that the cooling fan would rev up. So, it certainly didn't look like the computer was doing less work without the display. But I never get around to testing it properly. -- [tim@localhost ~]$ uname -r 2.6.27.25-78.2.56.fc9.i686 Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines