Share your Undervolt settings & battery life

aembleton

Member
Nov 24, 2013
18
11
0
Manchester
I just tried installing the DoomKernel for the first time and my phone wouldn't boot, it got to the splash screen, screen went blank and then a few seconds later rebooted. It stayed in this cycle until I entered Clockworkmod and recovered.

I am running Cyanogenmod 10.1.3-yuga. Is DoomKernal incompatable with this ROM? I've never changed the kernel before so this might just be common knowledge amongst you guys.

If it's not compatable, is there an undervolting kernel that is?
For anyone else that has this problem, it might be work trying Cyanogenmod 10.2 from the nightlies. I'm running that with meow kernel now and all is fine.
 

mankent7

Senior Member
Sep 12, 2009
155
17
0
Kuala Lumpur
I just tried installing the DoomKernel for the first time and my phone wouldn't boot, it got to the splash screen, screen went blank and then a few seconds later rebooted. It stayed in this cycle until I entered Clockworkmod and recovered.

I am running Cyanogenmod 10.1.3-yuga. Is DoomKernal incompatable with this ROM? I've never changed the kernel before so this might just be common knowledge amongst you guys.

If it's not compatable, is there an undervolting kernel that is?
DoomKernel is stock kernel only for stock rom. if u r runing cm's rom should use other kernel otherwise u get boot loop.
 

Haldi4803

Senior Member
Oct 14, 2010
3,838
1,563
253
So these are from Beanstalk 4.4 Sync Activated, Mobile Data Activated, 2x Email Exchange Push, Google Backups and all.




And then i had to switch to Prepaid:
Mobile Data always deactivated, Beanstalk settings Deactivate Data on Screen off:
Standby:


And then some Browsing via Chrome:



P.S the Always Active is a bug !
 

Haldi4803

Senior Member
Oct 14, 2010
3,838
1,563
253
So....let's talk more about bugged Deep Sleep on Stock 4.3 ROM!

i currently to not have inculded Mobile Data so thats Deactivated.

2x Email Push Sync, and all other sync.


Thats what happened with 53 Minutes Screen on time!



Assuming it was Email, i switched from Push to 1 every hour.

another interesting fact i've seen here:


The Wakeups are clearly caused by WiFi! But the Battery life does NOT get better if WiFI is deactivated ~.~

But well, there clearly seems to be something wrong! (BTW; here i deleted my Google Account because last Firmware there was a bug with new added credit card! so NO google services Sync here in this image! Email was set to every 1h)



ah well, here is a normal "Daily Usage"


4h Screen on? Not that bad you wanna say? YES! IF there would NOT be 22% Screen and 40% Android OS -.-


really interesting is this picture here! i deactivated WiFi, then it took around 2h to cool down(?) and it worked how it should! No more Battery drain or whatever.


Wakelocks are as always the same, "suspend_backoff" and "mmc1_detect"


For now i have played around enough with Stock rom. I'm backto Beanstalk. bb
If even the Stamania modus knows something is wrong....
 

testnumero

Senior Member
Oct 10, 2011
70
17
0
Best battery life till now on 4.3
Apps greenified and some app permissions disabled.
5% remained so guess 5h 35 screen on time.
nice !
how is it possible that your "Android OS" is so low ?
i have greenified all my apps but "Android OS" still kill my battery :( it's always higher than SOT :(
 

alpha.shining

Senior Member
Jul 10, 2013
60
9
0
This is my value, Antutu stability tested, really stable and on freeze.

firekernel v0.31beta (awesome kernel although it is beta) + slimKAT stable build 5
governor: intelliactive
PVS: 4 :D

The value of UV may can be lower except the frequency 384, 1134 and 1512 (the most used frequency (for intelliactive or perservative) and therefore UV of these frequency will be significant )

Frequency --> Undervolt
384000 --> 612500 (extreme)
432000 --> 650000
486000 --> 650000
540000 --> 662500
594000 --> 662500
648000 --> 675000
702000 --> 675000
756000 --> 737500
810000 --> 737500
864000 --> 750000
918000 --> 750000
972000 --> 787500
1026000 --> 787500
1080000 --> 800000
1134000 --> 862500 (extreme)
1188000 --> 887500
1242000 --> 937500
1296000 --> 950000
1350000 --> 950000
1404000 --> 975000
1458000 --> 975000
1512000 --> 987500 (extreme)
 
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langeveld024

Senior Member
Jun 7, 2012
1,720
805
143
Currently xzkernel for 4.4.2 stock rom doesn't support voltages lower than 800mv

On existenz, xzkernel, pvs 3, preservative, gpu interactive, tripndroid IO :
384 - 800
432 - 800
486 - 800
540 - 800
594 - 800
648 - 825
702 - 825
756 - 875
810 - 875
864 - 900
918 - 900
972 - 925
1026 - 925
1080 - 975
1134 - 975
1188 - 975
1242 - 975
1296 - 1000
1350 - 1000
1404 - 1037,5
1458 - 1037,5
1512 - 1050

On omni based ROMs like du in combination with rojak kernel or aosp /cm based ROMs my values will start at 650mv and ends up with something around 1050 at max freq but not much lower!
 
Last edited:
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