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Poll: Do you think its possible to overclock the N900?!
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Do you think its possible to overclock the N900?!

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ceroberts75 is offline ceroberts75
2010-05-28 , 19:08
Posts: 1,067 | Thanked: 313 times | Joined on Sep 2009 @ USA
#4251
seems to be working for me.


i ususally have it running at 900 or 1000 or 1.15ghz

seems more choppy at 1.15, but the 900 is fine.
 
geneven is offline geneven
2010-05-28 , 19:20
Posts: 5,795 | Thanked: 3,151 times | Joined on Feb 2007 @ Agoura Hills Calif
#4252
Originally Posted by jrherras View Post
does anyone having problems with video recording using enhanced kernel? my cam crash every time I use video recording
I crashed sometimes when using Skype video call using the Starving configuration. For me it seemed to be fixed when I switched to Ideal.
 
titan is offline titan
2010-05-28 , 20:44
Posts: 946 | Thanked: 1,650 times | Joined on Oct 2009 @ Germany
#4253
there are at least three main causes of crashes:
1. possible bugs in the Nokia code: PR1.2 has fixed a few
2. possible bugs in enhanced kernel patches or enabled features
3. undervolting in your configuration

1. can be detected if it crashes with the stock kernel
2. can be detected if it crashes with the default settings
3. is quite likely as every device is different and some devices
might not even tolerate lv. often is crashes only when the DSP is used (video etc.)
as it requires extra power.

If you want to find your individual lowest stable settings have a look at the
kernel-config lock command.

I have to repeat it as many people don't read the wiki:
the lowest frequency is not the idle frequency. IDLE = 0Mhz!
Last edited by titan; 2010-05-28 at 20:46.
 

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Gusse is offline Gusse
2010-05-28 , 20:51
Posts: 168 | Thanked: 206 times | Joined on Apr 2010 @ Finland
#4254
Originally Posted by michalurban View Post
I know all titans kernels save battery, I use his and lehtos kernels for some time now ... but Im interested in what other ppl believe to be the best combination of battery life and performance ...
I did some time ago measurements about currents & powers and then calculated efficiency (uW/Hz). Results showed that 500MHz was most efficient frequency, 850MHz was quite equal. It means that IDEAL kernel settings are very optimal. I have a little bit smaller values than Titans IDEAL, but anyway quite the same. Link to measurements

During night time I have used 125MHz and 500MHz freqs. According to used frequencies (time_in_states), CPU will be at 125MHz over 90% of the time when device is not in sleep mode (=IDLE). This "night mode" gives quite nice and flat battery graph, ~0.7% reduction per 1h (even with mail polling once per hour).
Last edited by Gusse; 2010-05-28 at 21:03.
 

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rexii23 is offline rexii23
2010-05-29 , 00:12
Posts: 69 | Thanked: 18 times | Joined on Apr 2010
#4255
Originally Posted by titan View Post
there are at least three main causes of crashes:
1. possible bugs in the Nokia code: PR1.2 has fixed a few
2. possible bugs in enhanced kernel patches or enabled features
3. undervolting in your configuration
Hopefully a new version of your kernel will work well for me. v37+PR1.2 just doesnt work well for me for both video recording or playing. I had no trouble with ULV or ideal when I was on PR1.1

But other functions of the kernel are still very useful
 
Crom is offline Crom
2010-05-29 , 00:27
Posts: 79 | Thanked: 11 times | Joined on Oct 2009 @ Norway
#4256
ok, this tread is too large and searching is impossible to do and get good answers.
The Titans kernel seems to be so complicated that a noob like me shuld stay away.
What i want is a kernel i can use with flasher 3.5 and is 125 - 900 or 125 - 1000 mhz.
Does anyone got a link to a kernel that works with PR 1.2?
__________________
Is it not strange that we fear most that which never happens? That we destroy our initiative by the fear of defeat; when in reality, defeat is a moust useful tonic and should be accapted as sutch.
 
crash16 is offline crash16
2010-05-29 , 00:39
Posts: 286 | Thanked: 117 times | Joined on Jan 2010
#4257
Originally Posted by Crom View Post
ok, this tread is too large and searching is impossible to do and get good answers.
The Titans kernel seems to be so complicated that a noob like me shuld stay away.
What i want is a kernel i can use with flasher 3.5 and is 125 - 900 or 125 - 1000 mhz.
Does anyone got a link to a kernel that works with PR 1.2?
here you go mate
http://rapidshare.com/files/39273580...00mhz.zip.html
 
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zvogt is offline zvogt
2010-05-29 , 00:46
Posts: 118 | Thanked: 67 times | Joined on Dec 2009 @ Saint Louis, MO, USA
#4258
Originally Posted by Crom View Post
Titans kernel seems to be so complicated that a noob like me shuld stay away.
As someone who's used both, I really think that titan's kernel is the MUCH easier method. If you're comfortable flashing the kernel, then I promise you that installing titan's kernel from App Manager is an order of magnitude easier than that. Just instal the kernel and the power settings app. swith to root in xterm and type:
kernel-config load ideal
You'll be all set with a GREAT configuration.
 
Crom is offline Crom
2010-05-29 , 01:06
Posts: 79 | Thanked: 11 times | Joined on Oct 2009 @ Norway
#4259
Originally Posted by zvogt View Post
As someone who's used both, I really think that titan's kernel is the MUCH easier method. If you're comfortable flashing the kernel, then I promise you that installing titan's kernel from App Manager is an order of magnitude easier than that. Just instal the kernel and the power settings app. swith to root in xterm and type:
kernel-config load ideal
You'll be all set with a GREAT configuration.
I have been looking into the Titans kernel, but it seems that i can read page up and down indefenetly on how the power settings and ewerything shuld be, without being a bit smarter on the subject..
I have flashed my kernel before. Just flash and smile. Works out of the box. No power settings and 250000 here and 12500 there, or what do i know about the settings...
OMG! All that is out of controll.

@ Crash16: That's what i was looking 4.
__________________
Is it not strange that we fear most that which never happens? That we destroy our initiative by the fear of defeat; when in reality, defeat is a moust useful tonic and should be accapted as sutch.
 
igorgomes is offline igorgomes
2010-05-29 , 01:29
Posts: 18 | Thanked: 5 times | Joined on Apr 2010 @ Sao Paulo
#4260
Hello all,

Just flashed PR1.2 (with eMMC) and Titan's v37 afterwards. Somehow, I got a problem:

Right after the needed reboot, I try to "kernel-config load ideal" and my N900 suddenly restarts. Trying to limit it to 900 MHz, same.

I'm seeing a very common case of 1GHz overclock... Any hints?
 
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