[Q&A Thread][KERNEL][T] DooMKernel {JB}

Arcano · Mar 13, 2013

gregbradley said:
Many thanks, it worked.

Can I ask you which program you used to create it, as notepad++ does not seem to work for me on my windows 7.

If I use a notepad on my ububtu dual boot will that work?

I use notepad++ myself, on win7 too. However I don't remember if I used that one or directly typed it on my phone with Root Explorer.

romcio47 · Mar 13, 2013

Odp: [Q&A Thread][KERNEL][T] DooMKernel {JB}

Undervolting seems to deal a major hit to the battery life. After setting all voltages to -100 of its original value the batter lasts for 3/4 hours less than on stock voltages. I was using init.d script and after deleting it, the battery life is again the same as before undervolting.

(Anyway it still sucks, it was way better on ICS (especially .195). I hope DooMLoRD will manage to fight with these stupid glitches that shortens the battery life)

Regards

DooMLoRD · Mar 13, 2013

romcio47 said:
Undervolting seems to deal a major hit to the battery life. After setting all voltages to -100 of its original value the batter lasts for 3/4 hours less than on stock voltages. I was using init.d script and after deleting it, the battery life is again the same as before undervolting.

(Anyway it still sucks, it was way better on ICS (especially .195). I hope DooMLoRD will manage to fight with these stupid glitches that shortens the battery life)

Regards

Thanks for the report... We will investigate this further... Till then why don't u try the apps mentioned in the first post of the kernel thread to see what apps are eating into the battery...

Sent from my LT30p using xda app-developers app

gregbradley · Mar 13, 2013

romcio47 said:
Undervolting seems to deal a major hit to the battery life. After setting all voltages to -100 of its original value the batter lasts for 3/4 hours less than on stock voltages. I was using init.d script and after deleting it, the battery life is again the same as before undervolting.

(Anyway it still sucks, it was way better on ICS (especially .195). I hope DooMLoRD will manage to fight with these stupid glitches that shortens the battery life)

Regards

That makes no sense, if its running at less voltage it is using less power.

Are you saying a full charge last 45 minutes (3/4 hour) less than normal...thats hardly much or are you saying it lasts 3 to 4 hours less than usual?
If so, over how many days did you compare this? I think its best to ru it for a week on one setting and then compare it with a week on a new setting....there is a tendency to use your phone more when you have flashed something new so that also eats battery due to the user "playing" with the new things they have just flashed

romcio47 · Mar 13, 2013

DooMLoRD said:
Thanks for the report... We will investigate this further... Till then why don't u try the apps mentioned in the first post of the kernel thread to see what apps are eating into the battery...

Sent from my LT30p using xda app-developers app

Ok, I will do this.

gregbradley said:
That makes no sense, if its running at less voltage it is using less power.

Are you saying a full charge last 45 minutes (3/4 hour) less than normal...thats hardly much or are you saying it lasts 3 to 4 hours less than usual?
If so, over how many days did you compare this? I think its best to ru it for a week on one setting and then compare it with a week on a new setting....there is a tendency to use your phone more when you have flashed something new so that also eats battery due to the user "playing" with the new things they have just flashed

My mistake. I mean 3 to 4 hours.

I did some tests for 6 days. 3 days with UV and 3 days without. I managed to use the phone in exactly the same way every day (my "normal" day is very specific). And with UV my phone was always dead earlier. Usually without UV it was about 2 am and with UV it was 10 to 11 pm, sometimes it lasted longer.

Or maybe -100 on every frequency is not good? Visually stable but unstable inside in the system... I will try with -50.

baz@gmx.co.uk · Apr 13, 2013

okay, so i am goona sound totally NOOB but here is my question..
I have installed latest JB via flashtool, so consequently lost root and recovery of course!
After realising i need a recovery to flash this kernel I did this:
Used fastboot to install Sylah's kernel (so i had access to a recovery)
Then flashed Doom kernel via recovery!
So no now I have JB 9 1 A 1 140 with DoomKernel :victory: !!

Could I have done this an easier way? I also don't seem to have root, no Superuser app etc.. What am I missing :/ how can I get root (sorry if I am wasting peoples time - been off the forums for a while!!)

gregbradley · Apr 13, 2013

baz@gmx.co.uk said:
okay, so i am goona sound totally NOOB but here is my question..
I have installed latest JB via flashtool, so consequently lost root and recovery of course!
After realising i need a recovery to flash this kernel I did this:
Used fastboot to install Sylah's kernel (so i had access to a recovery)
Then flashed Doom kernel via recovery!
So no now I have JB 9 1 A 1 140 with DoomKernel :victory: !!

Could I have done this an easier way? I also don't seem to have root, no Superuser app etc.. What am I missing :/ how can I get root (sorry if I am wasting peoples time - been off the forums for a while!!)

yes,

extract the kernel.elf from dooms kernel, flash that in fastboot and then flash the .zip in recovery to get wifi modules. Basically the same as your way but no need to download another kernel.

Once you are on doomkernel you will have root because its an insecure kernel. You just need to flash the rootpackage to get the required apps to manage root
RootPackage-gregbradley.zip - 1.75 MB

baz@gmx.co.uk · Apr 13, 2013

thanks greg, didn't see a root package in the kernel thread so thought it was an autoroot!!

gregbradley · Apr 13, 2013

baz@gmx.co.uk said:
thanks greg, didn't see a root package in the kernel thread so thought it was an autoroot!!

There is not a root package in the kernel thread, it assumed you have root because you are flashing it in recovery, but it is useful to keep that rootpackage handy

recoba23 · Apr 18, 2013

ZRam feature is not implemented, I guess. Could be interesting? (I've never tried...)

DooMLoRD · Apr 20, 2013

recoba23 said:
ZRam feature is not implemented, I guess. Could be interesting? (I've never tried...)

may not be needed as we already have enough ram on this device

peetr_ · Apr 20, 2013

I think that there will never be enough RAM.
ZRAM wouldn't be a bad feature, if you will have some time anytime later.

DooMLoRD · Apr 20, 2013

peetr_ said:
I think that there will never be enough RAM.
ZRAM wouldn't be a bad feature, if you will have some time anytime later.

Ok I will add it next to next kernel release...

For now I have to get the T & V kernel up to speed with the Xperia Z kernel...

Sent from my C6603 using xda app-developers app

s940068 · May 11, 2013

Can I install this kernel after I installed clockworkmod for locked bootloader?
PS:I have unlocked the bootloader

romcio47 · May 11, 2013

Yes and twhe kernel itself has two recoveries.

Tapped from The Bond Phone!

gregbradley · May 11, 2013

If you have recovery for locked bootloader dies that mean you have a locked bootloader...
If so then you can not install this kernel

Sent from my star trek communicator
Sony Flagship device circa 2145

adioperator · May 20, 2013

Hello,
Nice work DoomLord !

A lite problem

I have Xperia T with sk-cz xperia team rom == uniQue == Fast and Stable and unlocked bootloadr.
I put the card v5 kernel, I got into CWM and installed after restart my phone does not start, only vibrates briefly. Some solutions to revive it?

Sorry for my bad english

adioperator · May 20, 2013

adioperator said:
Hello,
Nice work DoomLord !

A lite problem
I have Xperia T with sk-cz xperia team rom == uniQue == Fast and Stable and unlocked bootloadr.
I put the card v5 kernel, I got into CWM and installed after restart my phone does not start, only vibrates briefly. Some solutions to revive it?

Sorry for my bad english

Solved by this method.

phreax9802 · May 31, 2013

Hi,

I've been trying to change my governor and i/o scheduler but my changes never seem to stick. Tried with different superuser apps, rom toolbox pro, voltage control lite, pimp my rom..all didn't work. Did I miss anything?

I really want to try wheatley governor. Appreciate any help.

Sent from my LT30p using xda app-developers app

gregbradley · May 31, 2013

try no frills cpu control and tick apply at boot

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