screen curtain interrupts the signal to the display. ----- Original Message ----- From: "Jacob Schmude" <[EMAIL PROTECTED]> To: "General discussions on all topics relating to the use of Mac OS X by theblind" <[email protected]> Sent: Friday, October 24, 2008 10:42 AM Subject: Re: battery life
Hmm that seems way too low actually, I get around 5 hours on my 2.4ghz macbook with wireless off and that's without touching the display brightness or doing any other tweaks. If I turn that down I can get a little more out of it, and turning bluetooth off will give me another hour and a half or so, and reducing the processor speed a bit will further increase it. Depending on what screen curtain is actually doing to blank the display it could be reducing your battery life rather than increasing it. If it say forces the screen to be constantly black, rather than just turning it off, this would drain the battery faster due to the fact that the video card is still drawing pictures but Voiceover ishaving to black them out before they reach the display. In effect this doubles the number of operations the graphics card must perform. I don't know exactly how screen curtain accomplishes its task--maybe it doesn't do this--but it's something to test. Don't turn on the curtain and see if your battery life is affected. I do suspect, however, that it works like this due to the fact that it works on all monitor combinations and there are instances, such as the Mac Mini or MacPro, where the system doesn't have control over the monitor's power. On Oct 24, 2008, at 07:31, Will Lomas wrote: > hi is around 2 hours thirty mins about right for a macbook battery > life with wireless active and screen curtain turned down? > >
