I have to say that I find this to be very strange and I've been hoping (perhaps unrealistically) that when the C2D's to finally support powerplay there will be significant battery life improvement. My MBP C2D runs at about 30+ watts on a 55 watt-hour battery which means around 1.5 hrs of battery life. This is true even after I put the screen to lowest brightness and do everything I can to save power. Even forcing the cores to always run in power-saving mode (1 Ghz only) doesn't seem to reduce my power output.
Even turning on everything in OS X such as bluetooth and wireless and even leaving the screen on decent brightness I can easily get 3 hours of battery life. This is twice as much as with Linux. The only thing that starts eating into my battery life in OS X quickly is if the processors are running even if its at <10%. To me this suggests that when they're not clocked down the processors eat a lot of battery, much more than having bluetooth or wireless on. So I presumed the same would hold for the GPU. Otherwise I really have no idea what could be burning so much power in linux. cheers, Sheer On 4/5/07, Soeren Sonnenburg <[EMAIL PROTECTED]> wrote: > On Thu, 2007-04-05 at 09:15 +1000, Nick Hoffman wrote: > > i've been following most of the threads relating to ATI's POWERplay > > and have talked to a few people in OFTC #mactel-linux. several people > > have said that switching to a lower power state using POWERplay does > > *not* reduce battery consumption. if that's the case, what's the point > > of POWERplay? > > This only means that there is something around which consumes a lot more > power such that switching the graphics adapter to a low power state > (using ATI's powerplay) is close to invisible in terms of longer battery > time... > > and yes, c2d owners powerplay (which works on c1d's) does not help here! > > Soeren > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Mactel-linux-users mailing list > Mactel-linux-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mactel-linux-users > ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Mactel-linux-users mailing list Mactel-linux-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mactel-linux-users
