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Poll: Do you think its possible to overclock the N900?!
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Posts: 40 | Thanked: 8 times | Joined on Apr 2010
#2621
Originally Posted by titan View Post
I have maemo22 from extras-devel installed
and turned it into the "ideal" kernel by creating /etc/event.d/kernel-maemo
WARNING: be careful, a tyop may brick your device!!
Code:
start on started dsme
stop on starting shutdown
service
console none
script
  echo 1 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load
  #echo 75 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
  #echo 150000 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
  # default
  #echo "30 30 38 48 54 48 60 60 60 60 60 60 60 72 72" > /sys/power/vdd1_opps_vsel
  #echo "90000000 90000000 180000000 360000000 400000000 430000000 430000000 430000000 430000000 500000000 500000000 500000000 500000000 520000000 520000000" > /sys/power/dsp_opps_rate
  # ideal
  echo "30 30 30 30 33 38 45 45 48 48 54 54 60 72 72" > /sys/power/vdd1_opps_vsel
  echo 500000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
  echo 850000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
end script
with "start kernel-maemo" you can activate it without rebooting

I installed maemo22 kernel, and set it to ideal kernel, but after i make a call, the min cpu freq reset to 250mhz?
 
Posts: 946 | Thanked: 1,650 times | Joined on Oct 2009 @ Germany
#2622
Originally Posted by oldnetdog View Post
I installed maemo22 kernel, and set it to ideal kernel, but after i make a call, the min cpu freq reset to 250mhz?
yes, that's a know bug of the telephone app and the only difference to the "ideal" kernel
until we have support for disabling certain frequencies.
telephone always tries to set the minimum to the minimum available and not the
one active before the phone call.
for the ideal the minimum is 500, for maemo22 it is 250000 (unless you specifiy 124999).
 

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Posts: 40 | Thanked: 8 times | Joined on Apr 2010
#2623
Originally Posted by titan View Post
yes, that's a know bug of the telephone app and the only difference to the "ideal" kernel
until we have support for disabling certain frequencies.
telephone always tries to set the minimum to the minimum available and not the
one active before the phone call.
for the ideal the minimum is 500, for maemo22 it is 250000 (unless you specifiy 124999).
maemo22 kernel is less power consumption than ideal kernel?
 
Posts: 946 | Thanked: 1,650 times | Joined on Oct 2009 @ Germany
#2624
Originally Posted by oldnetdog View Post
maemo22 kernel is less power consumption than ideal kernel?
by default, no. default settings = stock kernel.
but you can lower the voltages manually which may save power
 

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Posts: 40 | Thanked: 8 times | Joined on Apr 2010
#2625
Originally Posted by titan View Post
by default, no. default settings = stock kernel.
but you can lower the voltages manually which may save power
now I use this setting which ideal kernel used:

echo "30 30 30 30 33 38 45 45 48 48 54 54 60 72 72" /sys/power/vdd1_opps_vsel

and the min cpufreq set to 500mhz, max cpufreq set to 900mhz,
after call, the min cpufreq reset to 250mhz

for normal usage, will this setting with maemo22 take less power consumption than the maemo21 ideal kernel?

Last edited by oldnetdog; 2010-04-13 at 13:52.
 
Posts: 946 | Thanked: 1,650 times | Joined on Oct 2009 @ Germany
#2626
Originally Posted by oldnetdog View Post
now I use this setting which ideal kernel used:
and the min cpufreq set to 500mhz, max cpufreq set to 900mhz,
after call, the min cpufreq reset to 250mhz
for normal usage, will this setting with maemo22 take less power consumption the ideal kernel?
the is no "normal usage". just test it for your usage pattern and check whether is it an improvement for you.
you need to set the 500 lower limit after every phone call until we have a daemon for that.
 

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Posts: 40 | Thanked: 8 times | Joined on Apr 2010
#2627
Originally Posted by titan View Post
the is no "normal usage". just test it for your usage pattern and check whether is it an improvement for you.
you need to set the 500 lower limit after every phone call until we have a daemon for that.

thanks titan, i will test it for days.

hope I will soon see the daemon for reset min cpufreq after each phone call.
 
Posts: 22 | Thanked: 4 times | Joined on Jun 2009
#2628
hi to all

Titan and Letho great work.

I have runnig maemo21 xlv 125/1000 since sunday. no crashes.

I have two questions:
1)The device never get to 125 must of the time it runs in 250. I have installed all the necesary scipt in event.d. Is this normal?

2)The default multimedia player stops playing videos. I try to re-install the codecs and reboot the device several times. Still videos just dont show. It just show the waiting points in the screen but it never start. does the kernel could show this behavior? music files plays fine, so does video using kmplayer.

thanks in advance,

Ezmendriz
 
Posts: 946 | Thanked: 1,650 times | Joined on Oct 2009 @ Germany
#2629
1) for 125Mhz you need to set 124999. but I don't recommend 125 anyway.
2) videos work perfect for me (ideal kernel settings). do they play if you flash the stock kernel?

Originally Posted by ezmendriz View Post
I have two questions:
1)The device never get to 125 must of the time it runs in 250. I have installed all the necesary scipt in event.d. Is this normal?

2)The default multimedia player stops playing videos. I try to re-install the codecs and reboot the device several times. Still videos just dont show. It just show the waiting points in the screen but it never start. does the kernel could show this behavior? music files plays fine, so does video using kmplayer.

Ezmendriz
 
Posts: 992 | Thanked: 995 times | Joined on Dec 2009 @ California
#2630
Originally Posted by Mandor View Post
Just to follow up on my experience with the xlv kernel. I have tried up to 1000MHz and the phone was stable.

Unfortunately, I keep getting this error message (Unable to play media. Media format not supported.) when trying to play any video with the Media Player. [/I])
It has nothing with overclocking, it is a bug.

Try this - http://talk.maemo.org/showpost.php?p...3&postcount=62
 

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