Observations on power management
Observations on power management
Posted Nov 24, 2008 20:33 UTC (Mon) by jwb (guest, #15467)In reply to: Observations on power management by pebolle
Parent article: Observations on power management
Posted Nov 25, 2008 4:28 UTC (Tue)
by Richard_J_Neill (subscriber, #23093)
[Link]
Actually, this isn't as daft as it sounds. Apart from the disk, the LCD is the most likely thing to fail in a laptop - whether the backlight dies totally, or just dims or "yellows" over time. CCFL backlight life is hurt by both runtime and number of start-cycles. So, unless battery life is really really at a premium, you want to avoid turning off the backlight when the user is still actually using the machine.
Posted Nov 25, 2008 13:14 UTC (Tue)
by renox (guest, #23785)
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If the user stays too long with doing anything the screen will idle to black and then the backlight will be disabled: it make sense to have an idle screen as quite often the user will move the mouse to re-activate it.
Should the idle screen be white or black?
Posted Dec 1, 2008 8:26 UTC (Mon)
by MKesper (subscriber, #38539)
[Link]
Observations on power management
> minutes before disabling the backlight, as if this made any type of sense
> for today's computers.
Observations on power management
There's a power usage reason for it to be white for LCD, but there's also a 'do not distract the user' reason to use black as when the backlight will be disabled the user won't notice an annoying white to black flickering.
Observations on power management
Besides, my netbook uses a LED backlight so I don't have to care about dying cathodes. :-)