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[Kernel] [.34] Undervolted @ Stock-8/29 - 950mV-The Original

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By persiansown, Retired Recognized Developer on 17th February 2010, 06:44 PM
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What this kernel does is provide slightly less voltage to the processor. This should not be dangerous for anyone to try, however it may be unstable or just result in general weirdness on a few phones. If it does, all you have to do is revert back to the kernel you had before.
The upsides to less voltage are less heat as well as less power consumption. That means battery life

Remember, this one is running at stock speeds.

Get it on Koush's RomManager (download RomManager from the market) I'll post changelogs in this thread from now on, but keep the kernel on RomManager.


Changelog 8/29:
Lots of stuff.. I dunno.. Look at the CM6 kernel changelog (I've been working on that).
Biggest thing IMO is the usleep stuff which lowers CPU usage and therefore increases battery life.
Note: only tested on CM6. Let me know if you try it on any other roms.

Link: http://kanged.net/up/files/5/kernels...st26-UV950.zip

Changelog 6/20:
Ermm.. I've been releasing my kernels on twitter.. but I'm finally happy with this one.
-Latest Cyan commits
-Minor voltage tweaking
-erm... yeah I dunno.
Get it here http://kanged.net/kmobs/signed-619UV-34.zip or from RomManager.
Changelog 5/14:
-Reinstated those commits reverted earlier.
-Updated to .33.4
-Only doing a 925mV kernel due to the results from the blind study

Changelog 5/1:
-Reverted the following commits thanks to intersectRaven. I think they were the reason for the excessive battery drain.
27dd25f80402a13f9d5c381eda07b560e5545fcc
1490683fb851b992722cbd175d3df087df833656
f2513498e961966d3209aacfffc43de4f41f2ece

-Updated to latest CM source (minus those commits)

Changelog 4/21:
Fixed the board-mahimahi.c in the 850mV kernel.

OLD updates and changelog:
http://iq0.org/story/yet-another-nex...battery-saving

Note: Now offering a universal update.zip method for flashing the kernel (big thanks to Koush for this one)

Thank you www.tdrevolution.com for hosting my work.
 
 
17th February 2010, 06:47 PM |#2  
Mi|enko's Avatar
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Does it still have the highmem?
17th February 2010, 06:49 PM |#3  
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GEtting an access denied message, Seems the post doesnt exist
17th February 2010, 06:58 PM |#4  
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Great job. Will get you a logcat if I get any random weirdness.

Maybe now my battery can last longer then my G1 battery did when I am at work.
17th February 2010, 07:08 PM |#5  
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Anyone care to make an update.zip for those of us without computers nearby to check this out?
17th February 2010, 07:15 PM |#6  
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Tested and functional with Enomther 1.61. Thanks a lot
What is the CPU voltage and is the some app that can show it?
17th February 2010, 07:34 PM |#7  
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Running this new kernel at 576/245 mHz, wifi off, 3G connection, brightness set to automatic. will report back with battery life as soon as it runs out. lol

Off of charger: 11:34AM , Wednesday, February 17, 2010
Battery completely drained: TBA
17th February 2010, 07:35 PM |#8  
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Quote:
Originally Posted by DocRambone

Tested and functional with Enomther 1.61. Thanks a lot
What is the CPU voltage and is the some app that can show it?

Hey do report if there is any improvements... meanwhile can someone make it into to an update.zip for us?
17th February 2010, 07:42 PM |#9  
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Quote:
Originally Posted by mgear356

Hey do report if there is any improvements... meanwhile can someone make it into to an update.zip for us?

I will, phone seem ok so far, BenchmarkPi at 2670
No slowdowns or reboots during benchmarks or gameplay. Phone feel cooler tho
17th February 2010, 08:20 PM |#10  
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I'll give this a shot.
17th February 2010, 08:45 PM |#11  
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Quote:
Originally Posted by Mi|enko

Does it still have the highmem?

just flashed it. yes it does. my phone hasnt exploded yet either...
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