Overclock the N900? - Page 132 - maemo.org

torres76 | # 1311 | 2010-04-06, 14:45 | Report

Originally Posted by Ronaldo View Post

to resore fw info

apt-get install --reinstall mp-fremantle-generic-pr

then Restart

wont work says E: could not open lock file ?var/lib/dpkg/lock - open (13 pe mission denied)

fixfox | # 1312 | 2010-04-06, 14:49 | Report

Originally Posted by michalurban View Post

Just curious - why is everybody so anxious to get that info back?

Because "Nokia Software updater" does not recognise the phone until that info is restored.

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titan | # 1313 | 2010-04-06, 14:51 | Report

Originally Posted by dimkit View Post

i have install the new kernel flasher maemo, then i write to x terminal as root the command
echo 900000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
but the freq stays at 600 what do i do wrong

did you shutdown and reboot after installation?

Ronaldo | # 1314 | 2010-04-06, 14:58 | Report

Originally Posted by torres76 View Post

wont work says E: could not open lock file ?var/lib/dpkg/lock - open (13 pe mission denied)

u need to "sudo gainroot" 1st

dimkit | # 1315 | 2010-04-06, 15:04 | Report

Originally Posted by titan View Post

did you shutdown and reboot after installation?

i install the kernel , i restart my phone
and then i write the command , but nothing

titan | # 1316 | 2010-04-06, 15:09 | Report

Originally Posted by dimkit View Post

i install the kernel , i restart my phone
and then i write the command , but nothing

you need to install rootsh and execute "sudo gainroot" before that.
if it still doesn't work post the output of "uname -a"

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breakthru | # 1317 | 2010-04-06, 15:48 | Report

Hi titan,

I switched to your kernel because the idea of being able to limit the cpu as I please without re-re-flashing the kernel is brilliant!

I know that you have excluded 125MHz from your kernel but I was wondering whether you would implement it in the following versions of your kernel if 125MHz ever proved to contribute to battery life while not causing stability issues. This way people using your kernel would only have to update it from the App manager and continue using it as they please...

Great work by the way, by everybody who contributed to this thread...

Fumanchu | # 1318 | 2010-04-06, 15:53 | Report

Of course, I have also gained root, and found that the command does not result in success for me either.
Using the uname -a command results in a string of information ending with; arm71 unknown... will post the full string later when I get back

*Linux Nokia-N900-42-11 2.6.28-omap1 #10 PREEMPT Sat Apr 3 09 :01:04 EDT 2010 arm71 unknown*

michalurban | # 1319 | 2010-04-06, 15:59 | Report

Originally Posted by titan View Post

There is a new stable overclockable kernel in extras-testing.
Installation is very simple: install the package kernel-flasher-maemo (section system in HAM), shutdown and cold boot. There's no need for reflashing etc.

The default limit is at stable 600MHz. This is the same setting as the stock kernel and is safe.

This kernel makes it possible dynamically change the maximum frequency up to 1.2GHz (supported frequencies are 250,500,550,600,700,750,800,850,900,950,1000,1100, 1200MHz)
Warning: Overclocking may damage your device and is at your own risk!
You can manually increase the limit until your device fries using, e.g. for 600MHz

Code:

sudo gainroot
echo 600000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq

To permanently fix the limit edit /etc/pmconfig.
Unlike the other kernels in this thread it can also more of use the intermediate frequencies which might be the reason why it is stable for me at 1GHz.

Apart from overclocking, this kernel has a lot of other features
(2.6.28.10, PR1.2 patches etc) see http://talk.maemo.org/showthread.php?t=43420
It also retains the version info in Settings -> Product info.
If it works well for you, please vote at
http://maemo.org/packages/package_in....6.28-maemo19/

PS: 125MHz is deliberately not included, see http://talk.maemo.org/showpost.php?p...&postcount=141

Good luck!

Just installed your experimental 125-1200 kernel, works great, thx!

Im gonna write a simple script setting the upscale and downscale freq, after that Ill upload it.

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titan | # 1320 | 2010-04-06, 16:00 | Report

Originally Posted by Fumanchu View Post

Using the uname -a command results in a string of information ending with; arm71 unknown... will post the full string later when I get back

*Linux Nokia-N900-42-11 2.6.28-omap1 #10 PREEMPT Sat Apr 3 09 :01:04 EDT 2010 arm71 unknown*

this means the installation failed as the output should look like this:
Linux <hostname> 2.6.28.10maemo-omap1 #1 PREEMPT Tue Apr 6 13:21:33 EEST 2010 armv7l GNU/Linux
you seem to be running an old firmware (PR1.0). PR1.1 should be the minimum required.
I'll add that to the description.