Reducing ATI display adapter power consumption

[Richard Hughes]

Referring to http://bugzilla.gnome.org/show_bug.cgi?id=392022

powermode=`/usr/bin/aticonfig --lsp | grep -m1 low | cut -b 3-3`
/usr/bin/aticonfig --set-powerstate=$powermode --effective=now

sets the power consumption to lowest on ATI cards.

powermode=`/usr/bin/aticonfig --lsp | grep -m1 default | cut -b 3-3`
/usr/bin/aticonfig --set-powerstate=$powermode --effective=now

sets the performance to the default (boot) settings.

Does this belong in a HAL method, i.e. a SetPowersave(bool) on the
device UDI, or does this trivial action belong in pm-utils?

I would err on the latter as it's a simple script that we can do
unconditionally to save power. What do people think? It's likely we will
want to do the same thing with nvidia cards soon.

Richard.