Jason Lunz wrote:
Those average out to 1606 vs 1460, or 9.1% power savings. That's enough to be the difference between being able to watch an entire dvd on one battery charge or not.
this is very interesting data! I'm impressed by how much difference this makes; it's something that I can talk to the drivers guys about ...
I don't know that powertop can do much about this, as you won't typically run it while watching video. But it would be nice to point out in the Tips & Tricks part of the website that most video players seem to simply grab the first xvideo adapter available, not necessarily the best. Both vlc and mplayer default to adapter 0, which is inferior both in terms of output quality and power consumption.
I'll see if I can get your results can be put there in a way that makes sense...
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