With an LCD the backlight consumes substantial power and keeping a black image on screen makes no difference to the power consumption.
-- Rgds JTD -- http://mm.glug-bom.org/mailman/listinfo/linuxers
Actually,in a conversation with a game programmer,I found out that it isn't as simple as rendering a white pixel needs rendering of all colours while rendering a black pixel needs an absence of colours,thus power is saved.Even the black pixel rendered is not true absence of colour but actually a mix of the dark colours which is close enough to black for the human eye.So,power saved is basically nil.
A little late in the day to comment, but pray tell me: what does this discussion have to do with GNU/Linux?
Sometimes,a few off topic discussions are ok,because otherwise,IMHO,there's no life in a community when there's no healthy interaction on a wide variety of topics,and you are stuck with "Topic1 and related"
Regards, Easwar Registered Linux user #442065