Isopropylique

data14, on 13 October 2012 - 11:54 PM, said:

Thanks for the info!

First, my battery life is normal now!

I'm just a bit shy of 2 hours 45 minutes.

Second, data14, I'd like to know all about the patched kexts you posted. I'm trying to learn what changes were made to each extension so that if an update comes out and no one else patches them I can post fixes right back here.

Thanks again to everyone who contributes here!

For your consideration:


This is from my Mountain Lion install on a nearly stock B570. As you can see, the processors are hitting different power states and are mostly idling at a bit below 800 MHz. I have my LCD brightness turned one notch above "off", and my results are 20% battery loss between 8:15 p.m. and 8:40 p.m. I'm sure the depletion isn't linear (it shouldn't be), but I need to keep monitoring it.

I'm going to drain my battery and post back tonight with its total time before dying completely.

data14, on 11 October 2012 - 10:58 AM, said:

No problem. This is my first laptop that I've bought (sort-of) brand new in the last 10 years. I've "inherited" laptops from friends and family, but the Lenovo was a bargain because it was cheap, could run OS X without too many problems, and it came with a brand new battery.

I suspect the problem has something to do with the Intel chipset. On Linux, there are extra tweaks and patches you can apply to the kernel to get better battery life. I'm going to investigate further using Ubuntu since I can live boot it and there are a lot of forums out there with Sandy Bridge answers.

Either that or the BIOS is so badly damaged that only Windows can get full battery life.

I'm looking for something more than an hour. Even 1.5 hours would be nice out of OS X.

micred, on 10 October 2012 - 09:03 PM, said:

Alright! I re-installed Mountain Lion and used the kexts and Extra folder from above, but skipped Voodoo* kexts. Instead, I used AppleACPIPS2Nub.kext + ApplePS2Controller.kext (which strangely enough produce Voodoo debug lines in verbose mode).

Everything works except for my battery (it drains VERY fast).

I'm not getting the same errors as you in my system.log, so it must be something else.

This is the closest I've been able to get.