Re: [Announce] kernel-power v47
 

After evaluating the new kernel for 3 days, and changing nothing else, these are my experiences:
- faster, snappier response
- battery life is worse (powertop reveals not much)
- 4 random reboots while browsing
- music library got corrupted ? trying to fix that now

Re: [Announce] kernel-power v47
 

yes i know i have bad langiage in my post, but it was never refered to you, i didn't call you anything, and i wasn't trolling in my posts before, maybe the last one was, and i should get out ride my quadbike too, its sunny over here too .

Re: [Announce] kernel-power v47
 

Well...for me after updating to v47 and rebooting phone wont start anymore. First I thought I just was careless and battery finshed but when looking indicator light when charging it's just yellow, not blinking with yellow color.
When I try to start phone Nokia logo appears and indicator light is white so at this point everything seems to be ok - but stucks there...

Can not flash either.Computer (Windows7 & Windows XP) does not recognize USB device anymore. So when I try to flash flasher stops in quite beginning erroring "Suitable USB device not found, waiting"..

Re: [Announce] kernel-power v47
 

your battery seems to be empty in a way the phone doesn't start..
the n900 does boot into charging mode inorder for the battery to charge (blinking yello/orange led) ,
if the battery is quite empty , the charging is managed by the hardware battery chip , in that charging mode , you can't start the phone and the led will have a solid yellow color .
connect your phone to your pc / charger and leave it connected for half an hour and let it charge .

Re: [Announce] kernel-power v47
 

For what it's worth, I've been getting constant lockup/reboots while using this kernel that I have been unable to isolate as to the reason.

Not present on v46, BFS or other releases.

Re: [Announce] kernel-power v47
 

There is also weird appearance; when charging, yellow light's "blinking frequency" is about 1 or 2 minutes...I'll let my phone stay in charger nigth over and try to do something again...

Re: [Announce] kernel-power v47
 

I would like to point that from my experience, Titan's undervolting profiles were really BAD and maybe this is source of all reboot problems people are reporting here.

Yea, i was also using "ideal" profile for long time without problems - at least that was what i thought. Then, after few months i started to encounter VERY strange problems with more and more applications - to make long story short, i was impossible to explain what was really happening, restoring backups helped for some time, then weirdness occur again. Also, i started to encounter strange reboots.

At the beginning i blamed applications and tweaks installed last, but hours of testing get me nothing and problems were all together unreproduceable. So i started to wonder if undervolting may occur files/filesystem corruption - especially that, after few of the strange reboots, maemo did automatic fsck (i enabled that option in one of kernel-power setting files - to do fsck when "needed", whatever it means).

I tried lover undevolting (higher voltage),and in next few months problems tend to occur less, but still appeared after some time. So i looked at titan's setting - they we're strange, to say at lwast. Check for yourself - how voltage rise with higher frequency - many times it seems unbalanced. I did my own profile, completely from scratch, based on standard Nokia settings + ideal titan's setting (Something between stock settings and "ideal" settings, to get voltage on 500 mhz and voltage on 900 mhz - ie. min and max voltage for me. then, voltage progress between min and max was adjusted by me, cause titan's setting were trash in my opinion).

From that time, i don't have ANY problems of this kind for many months, no single strange reboot or corrupted file. No single need for backup restore. I was even able to apply good tweaks, that before i blamed of system instability.

Sorry for that long post, but i think that many people here can encounter the same. I don't have hard proof, so this post scientific value may be close to 0 - as i said, problems we're not reproduceable - but, titan's undervolting profiles are quite popular here, and i think that this may be cause of many false problems reports in many part of forum, unrelated to on-topic subjects. Keep in mind that after preparing my own undervolting settings (my N900 is still undervolted, but not so high) i got no problems and my N900 is set to 500 mhz min - 900 mhz max all the time. also i did NOT feel any noticeable higher battery drain due to higher voltage.

Also, to make things clear - i really appreciate titan's hard work on kernel-powers - even that he dropped it without any notice - but i think that undervolting settings were undertested, and becomes too popular, especially "ideal".

Filesystem corruption due to undervolting is *****y thing to detect and even harder to reproduce. Maybe we should suggest, that any problems, before reporting, should be reproduced not only without overclocking, but also without undervolting? And, what is also very important, on filesystem backup that was NOT "poisoned" by undervolting?

Re: [Announce] kernel-power v47
 

Could you upload yout profile file or send it to me via PM (I'm curious what you did there and am eager to test). What about battery life? How often do you need to charge?

Re: [Announce] kernel-power v47
 

i too use my own voltage settings coz i find lv/ul/xlv voltages are a little too much on the lower side to my liking, phone might turn on and run but it might do incorrect calculations due to too low voltage but the end users wont notice it most of the time, the same reason we run prime95 for hours to check oc stability/calulation accuracy on desktops to ensure rock solid stability.

nkirk

Re: [Announce] kernel-power v47
 

seems to be back to normal now. Perhaps some teething problem with new kernel and media tracker or something, but system seems to have settled now and looks all ok on omap1.

Re: [Announce] kernel-power v47
 

Although your comments seem to agree with what I said a few pages back, I hasten to disassociate myself with the general tone of what you say here, with words like "trash" and "really bad".

I have used Titan's undervolting profiles blindly and trustingly (and daily) for more than a year and they haven't caused me any mysterious problens at all -- my N900 has worked well the whole time. Oh, I have run into unknown problems, but they were solved with common sense solutions like flashing. Titan always made clear that undervolting was something experimental.

It sounds to me like you took his settings too seriously to begin with, and you blame him for that. I have always undervolted cautiously and didn't try hard for maximum undervolting.

I agree with you that many problems mentioned here may be caused by undervolting, but it seems to me that the reason for that is that many users ignore the excellent documentation and instead randomly apply settings thinking that they are magic, and assuming that all N900s are identical, when the whole theory of overclocking and undervolting is that N900s are not identical and the special kernels provide you with ways to customize your unique device.

I also think that your comments exaggerate the hazards of overclocking, which I think has been remarkably safe. Undervolting is trickier.

Re: [Announce] kernel-power v47
 

Night over charging and still wont wake up...pfff....Going to take battery off for a couple of hours next...

Re: [Announce] kernel-power v47
 

Common Sense solution like flashing your device ???? If you are any expert you wouldnt have had to flash your n900, not even once since you bought it. Most of the people that run into issues that they have to flash their device are noobs mostly. It is not a common sense solution in anyway. I cant imagine trying to install all the little hacks from scratch

Re: [Announce] kernel-power v47
 

Thanks @pali for the great work!

Suprisingly didn't find answer for this question in thread:

Can (will) lxp's patched wl1251 driver be included in next kernel-power release? I think it's proven stable. Patched osso-wlan libraries can be included in CSSU to provide smooth transition.

Re: [Announce] kernel-power v47
 

can anyone guide me to fixing my mutiboot menu now? kernel power 2 doesnt load anymore after installing this 47 update need myoverclock any ideas guys?

Re: [Announce] kernel-power v47
 

After you updated your power kernel run in xterm as root

to create a multiboot option for new kernel. It has been told many times in this thread.

Re: [Announce] kernel-power v47
 

Mate im stuck at an airport no laptop dont want to go right try threads on my phone, an update just came through earlierfor the boot image which i update, any chance to let me know how to add and remove kernel 46 and ad 47?

Re: [Announce] kernel-power v47
 

hello all.. i read through the postings late last night so I may have missed it but could someone take a minute to tell me how to fix this as I was greeted with an update this morning and when I started I got the message..
!!! Linux kernel for power user(boot image) breaks the 3rd party package policy,, thanks (not using multi-boot)

Re: [Announce] kernel-power v47
 

Ok to make it clear. If you re using a power kernel and you want to update it to version 47 from pali you have to do the following steps (always as root):

1. Remove multiboot-kernel-power package(it's not needed anymore for overclock) by running in xterm

2. Install the new kernel

3. Create multiboot entry with

These steps are written on the first post. I can't understand why are you keep asking and having problems.

Re: [Announce] kernel-power v47
 

What about nitdroid though? il need multiboot for that wont i?

Re: [Announce] kernel-power v47
 

wtf do u mean keep asking this is the first time ive asked?

Re: [Announce] kernel-power v47
 

You do not remove multiboot, you just remove the old multiboot v46 kernel image (so you can install new v47). Nitdroid will work, you do not have to do anything with it.

It means your question has been answered many times over, and they are present in the first post of the topic. Generally when you do not know something, you read the first post (as they usually describe what is it you are reading about, what does it do and how it does it).

Re: [Announce] kernel-power v47
 

Man, you re not the only one. If you look on the previous pages you ll get it.

Multiboot is still there, we re just removing a package which is not needed anymore. Also, nitdroid is intact with this procedure.

Re: [Announce] kernel-power v47
 

If you cannot install any packages now (airport internets have issues sometimes :P), but have installed kernel power 47 (you have file /boot/zImage-2.6.28.10-power47 and directory /lib/modules/2.6.28.10-power47 on your device), you can manually add multiboot entry. Just create file /etc/multiboot.d/02-temp.item with contents:
If your /boot/zImage-2.6.28.10-power47 file is named differently (e.g. you have old power46 kernel and /lib/modules/2.6.28.10-power46 directory) you can change the contents of file accordingly. Basically, you need to have kernel named /boot/zImage-$ITEM_KERNEL or /boot/vmlinuz-$ITEM_KERNEL and directory with modules named /lib/modules/$ITEM_KERNEL (if you know bash scripting, this shuld be enough information, if you don't know anything about bash scripting, please don't continue because you can end with device messed up and not booting anymore. Instead wait with fixing it for better internet connection, then type as suggested previously: as root.

Edit: And, one important thing. Package "multiboot-kernel-power" is just an entry in multiboot for kernel power (as stated bazillion times earlier). You are not uninstalling multiboot while uninstalling it. Multiboot's package is named just "multiboot". All other packages named "multiboot-blahblahblah" are just additional stuff to it (like kernel images and entries in multibootboot menu) and by removing them you are not removing multiboot.

Re: [Announce] kernel-power v47
 

ive been using kernel v47 for around a week now @ 1150 with CSSU.

zero problems.

Re: [Announce] kernel-power v47
 

People here are giving their experience and I will do so.

I've also noticed fast battery draining with v47 and ideal overclocking at 500 MHz MIN and 850 MHz MAX.
This is directed to all of us having fast battery draining to check if you have tested this case to see if you had the same experience as me.

I wanted to mantain battery charge at higher levels so I've been using the stock clocking. My surprise was that responsiveness is nearly the same in normal cases as with overclocking, and it seems to consume less battery power.
I also changed some settings in swappolube.

I havent't followed a scientific method, but I wanted to ask if we are such blinded about overclocking that we haven't noticed that the stock clocking works well on this v47 power kernel?

Maybe with a "Use it when you need it" overclocking use battery lifetime won't be an issue.

Re: [Announce] kernel-power v47
 

if anything my battery lasts longer with v47 @ 1150 with swappolube and some other mods

and no its not placebo. ive had this device since it was released, overclocked since that was released, CSSU since it was released.

cant even remember all the mods on my phone :D

the N900 is the best value 'phone' ive ever bought. it just keeps getting better and better!

thanks to everyone in this great community!

Re: [Announce] kernel-power v47
 

Hi
I have kernel-power v47 installed
Then tried installing Fcam .Causes camera not to operate when you open lense cover and when you open fcam you have to end proccess to shut it down.
Also notification and keyboard lights dont work.
So uninstalled Fcam, This returned camera function to normal,Switched off phone and removed battery and pluged in charger till notification light flashed then refit battery turn phone on, notification and keyboard lights functioning again.
Is there a way to install fcam on v47?

Got it to work finnaly
straight after you download and install Fcam switch phone off, Remove battery plug in charger to flash notification light reinstall battery turn phone on.
Fcam works great.

Re: [Announce] kernel-power v47
 

Hi guys, quick question...
I had been using kernel-power v46 with no issues at all, now I recently upgraded to kernel-power v47 and the last few times I have used my n900 with my BH-214 bluetooth headset it connects no problem to the headset however it continually has audio problems occasionally dropping the connection.

Could this be related to v47, is there any way to know what is happening here? The bluetooth icon shows that the headset is still connected however there is no audio after a while..

Thanks.

Re: [Announce] kernel-power v47
 

@ that one guy who said something to the effect of "could it be we're so obsessed with overclocking that ..."

Yes. Yes we are. I have never overclocked my N900, and I have almost never felt the need for it. Modern CPUs, even at 600MHz, are faster at that clock rate than the clock rates of other hardware, and depending on the quality of the code being executed, the processor could be spending hundreds of CPU cycles just waiting for the right data to make its way out of the harddrive to it. It has also been repeatedly demonstarted that the majority of N900 slowness is I/O bottlenecks and swap fragmentation as uptime continues (as fragmentation of flash media doesn't effect read speeds but DOES effect write speeds).

Overclocking isn't bad - but it only increases performance in only CPU-intensive tasks that aren't already I/O or RAM -bound. It certainly does not make the phone AS more responsive and smooth/snappy/fluid/whatever as most users exclaim/believe.

Just look at both this thread and CSSU threads - every update in the CSSU for example, there's people who comment how their phone feels snappier/more-responsive - there's no reasonable cause for that to be so though, as CSSU updates have never, if I recall correctly, included patches optimizing the code for performance speeds.

Overclocking has its uses, but it's specific uses and a computer (phones included) doesn't magically improve at everything just because its overclocked.

Re: [Announce] kernel-power v47
 

Ok so just spent good 20mins looking around for fix for this next issue, I have now got my Overclock back and Kernel47 in boot entry, noww when i go to load nitdroid i get a guru mediation error or somthing like that.. Ive searched and didnt come up with anything? any ideas?

Re: [Announce] kernel-power v47
 

could you PM me (because this is not related to power kernel, I am sure and we shouldn't spam this thread with it) output of commands:
Note: before last of these three command you can run "ls /etc/multiboot.d" to be sure that nitdroid multiboot entry filename is "11-NITDroid-mmcblk1p2-2.6.28.NIT.06.item" (if slightly another file name will be posted as output, replace it in last command)

Re: [Announce] kernel-power v47
 

i have reverted back to wl1251 kernel v46 for now. I had two main issues with Pali v47 kernel; one was heavy battery drain second battery temperature would easily go up after hardly watching couple of videos

i was using lv 250/900 MHz profile mostly

Re: [Announce] kernel-power v47
 

Here it is - I changed extension to .txt, cause forum doesn't allow to upload attachments it in native format. My settings are nothing special - i prefer stability than "how low can i get". I agree, that every N900 is different, so it is possible that for some even such conservative settings may be unstable - but i applied very high margin, just not as conservative as stock settings, but still high. Not to mention that we don't have stock setting for frequencies above 600 mhz (sorry for pointing things that everyone know, i like explain everything in my posts, in case that some new user is reading).

Of course I'm open for suggestions, if someone notice obvious logic mistakes in my profile - it was my first attempt, and because it work with no flaws for many months, i just keep it.

About battery drain - it's hard to tell, because i use my N900 in many places (differences in signal strength etc), but in subjective manner i did not observed any changes. I also tried to do some "scientific" measurements by monitoring...

cat /sys/class/power_supply/bq27200-0/current_now

...but wasn't able to track ANY higher drain. Maybe in units of 0,1 mAh? nothing, that could make battery last shorter in real-life situations.

Also i totally agree with Mentalist - interface cannot become snappier due to overclock :cool: I keep my N900 on 500-900 to get more idle time (i e. 0 mhz) + faster, when i do something really high CPU-demanding, but without that phone just stays at 500 mhz... (as long as cpu use isn't like 95% - another info for new users, DO NOT count moment when you test actual frequency, by shell or conky or whatever... It will give You max frequency for a second or two - phone doesn't react like that in real-life use)

@ guy who though that i try to disrespect titan's work - that is why i attached explanation to my last post, i'm not going to quote myself, lol :)

Good luck and thanks for willing to test.

// Edit

Although undervolting is certainly thing related to power-kernel, (especially when it may cause false problem reports), I'm not sure if this topic is good place to discuss about that - i.e i don't know if i just didn't made this thread even harder to read on-topic. Maybe we should create another thread with concerns about undervolting? I just planned to reply misiak by PM, but, who knows, maybe someone else is interested in profile testing, so decided to post it here.

anyway, if Pali decide that it is not related, i'll happily move this post to another topic, so just say a word Pali :)

Re: [Announce] kernel-power v47
 

Guys, for me v47 eats much more battery. V46 was very good I could have sometimes almost 2 days of simple email and some browsing usage. Now the battery gets drained in less than 24h. I wonder how to solve this.

Re: [Announce] kernel-power v47
 

What is the proper way to reverse back to v46? 47 seems too hot for me, i am running at 500/1000 Mhz.

I tried to Apt-get install -reinstall kernel-power kernel-power-flasher

but I kept getting v47..

Re: [Announce] kernel-power v47
 

Ok, i got an issue!

I updated the Kernel to v47 and by the first time i rebooted my n900, chose the item nº 2 in multiboot, wich is the one for the power kernel (i have nitdroid installed too) them i have the following message:

"Can´t flash kernel, required files not found.
Guru meditation #00000025.62017712

Hit any key for panic"


then i hit a key and go back to multiboot panel.
The maemo-omap is loading good, so is nitdroid.

What i did wrong? it just updated by the AppManager...

any ideas?

thank you so much!

Re: [Announce] kernel-power v47
 

Try typing in terminal
It should inform you that package kernel-power-bootimg is to be installed/updated and package multiboot-kernel-power is to be removed. Just accept that, install, reboot and you should be able to boot power kernel 47.

Re: kernel-power patches/updates
 

Phew! It works just fine - Thank you for your post.

Re: [Announce] kernel-power v47
 

I don't remember claiming to be an expert, but in my experience flashing is often the fastest and easiest way to solve problems of unknown origin.