One thing Sony has been doing for a while now is using LED backlighting in their SZ series laptops. (I think they call it XBrite). This is a significant power savings over the compact fluorescents commonly used as laptop backlights.
I see about 4 hours or so with my Sony SZ220. On Dec 3, 2007 4:24 AM, James Cornell <sparcdr at sparcdr.com> wrote: > On Monday 03 December 2007 02:14:51 Dr. David Kirkby wrote: > > > None of Intel's cards have thermal sensors, and their > > > driver software is very > > > basic. NVIDIA is the only company to provide > > > accelerated drivers and > > > utilities to non-Windows operating systems. You > > > don't set the resolution > > > with the utlity, that's why the XRandR extension was > > > such an important > > > milestone to accomplish when X.org 7.x was instituted > > > on OpenSolaris. Again, > > > the Intel cards lack the functionality. > > > > > > James > > > > Thank you James. It looks like I am OK now, as I think both the Nvidia > and > > the Intel graphics are working correctly. I can live with reduced > control > > on Intel. > > > > I see some web page say Sony claim 4.5 hours typical use on the Intel > chip > > set of this laptop and 3.5 when using the Nvidia. I can't say I've seen > > that from Sony, nor can I say I have measured it myself, but it does run > > significantly warmer when using the Nvidia, so I can well believe it > > reduces the battery life by 20-25%. > > > > > > This message posted from opensolaris.org > > _______________________________________________ > > laptop-discuss mailing list > > laptop-discuss at opensolaris.org > > It's a penalty some are willing to take, although unless you do 3D > modeling on > the go or games, and are using a more frugal operating system like Solaris > or > Linux, the GMA950 is more than adequate for normal tasks, playing movies, > etc. > > Sony has been known to make some questionable claims about their Vaios, > it's > no suprise to me that they claim to get as much performance with a > NVIDIA-enabled system that a very respectable 13" Dell or MacBook (Not > Pro) > with Intel graphics can truely accomplish. It defies physics for any > notebook with a dedicated hardware accelerated graphic card and dual core > processor to get more than 3 1/2 hours, even with a 12 cell battery. > > Take my 15.4" MacBook Pro for instance, it has a Geforce 8600 GT, and > amazingly I can get 3 1/2 hours with it, only reason though is the full > power > management support in Mac OS X, and constant dimming of the LCD. and > downclocking using Speedstep. Now being able to use it in full without > actually turning on the power features that are obvious (and annoying) is > not > a truth of modern and past age computers, it doesn't and won't happen > unless > our battery technology gets out of the Lithium stoneage. > > James > _______________________________________________ > laptop-discuss mailing list > laptop-discuss at opensolaris.org > -- - Brian Gupta http://opensolaris.org/os/project/nycosug/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/laptop-discuss/attachments/20071212/0819c47f/attachment.html>
