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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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AlMehdi is offline AlMehdi
2010-04-22 , 13:13
Posts: 1,751 | Thanked: 844 times | Joined on Feb 2010 @ Sweden
#3221
Originally Posted by HD.Canson View Post
ok now i got titans kernel working.

i am using the ideal kernel 500-950.

i changed the max freq from 850 to 950.

so far no problem with my phone. its flying like an angel.

But right now i need help from you guys about 2 questions.

1: how can i perma choice 500-950 ??
because when i reboot phone it goes to default ideal with 500-850.

2: why do the phone switch between 500 and 950 mhz so much??? even when the phone is in idle and cpu usage is like 3-5%.

Can i choice when the 950 should go on?? like 30 or higher % cpu usage activates the 950 mhz and under 30 % cpu usage the phone goes only in 500 mhz.


because right now it seems my phone never goes to idle. because it uses 950 mhz too much even when no programs are open.
You have missed the last step to make it permanent. Try to look in the wiki.maemo.org/Overclocking again. You need to make the /etc/default/kernel-power file and like you want it.
 
psrkn is offline psrkn
2010-04-22 , 13:25
Posts: 68 | Thanked: 4 times | Joined on Feb 2010
#3222
@Titan,
I am running Titan's lv 250-900 for awhile now, and just found the following error from dmesg:
[65016.122100] wl1251: ERROR Power save entry failed, giving up

I don't know what it is about. I did not set any smartreflex or anything else.Here is the info from the pmconfig:
# Power management configuration file
enable_off_mode 1
sleep_while_idle 1
sr_vdd1_autocomp 0
sr_vdd2_autocomp 0
clocks_off_while_idle 1
voltage_off_while_idle 1
scaling_governor ondemand
scaling_max_freq 900000
scaling_min_freq 250000
sleep_ind

Please help me on this issue.
Thanks.

EDIT : Aditional info from kernel-power:
~ $ /etc/default/kernel-power
#UP_THRESHOLD=75
#SAMPLING_RATE=150000
VDD1_OPPS_VSEL="30 30 38 48 48 54 54 54 54 54 54 54 60 72 72"
DSP_OPPS_RATE="90 90 180 360 400 430 430 430 430 500 500 500 500 520 520"
MIN_FREQ=250000
MAX_FREQ=900000
SMARTREFLEX_VDD1=0
SMARTREFLEX_VDD2=0
Last edited by psrkn; 2010-04-22 at 15:00.
 
imacmillan is offline imacmillan
2010-04-22 , 13:31
Posts: 111 | Thanked: 27 times | Joined on Apr 2010
#3223
Originally Posted by AlMehdi View Post
Yes, this has probably with too low voltage to the DSP. Try raise the voltage under VSEL for the 850mhz and see if it get's better.
Do you know how i would do this? I'm a bit of a beginner with all this but been trying to learn!

Would it just be a command from x terminal or would it require editing the "/sys/power/vdd1_opps_vsel values"

Or am i completely off track?!

Thanks in advance
 
nightfire is offline nightfire
2010-04-22 , 14:07
Posts: 310 | Thanked: 383 times | Joined on Jan 2010
#3224
Originally Posted by imacmillan View Post
Do you know how i would do this? I'm a bit of a beginner with all this but been trying to learn!

Would it just be a command from x terminal or would it require editing the "/sys/power/vdd1_opps_vsel values"

Or am i completely off track?!

Thanks in advance
As root under xterm, try this:

1 root@glamb-n900 [~]# cat /sys/power/vdd1_opps_vsel

In my case, it returns:

0 15 26 36 40 42 47 48 50 53 56 59 63 64 68

These are the voltage increase multipliers for all the defined frequencies:

Off 125 250 500 550 600 700 750 800 850 900 950 1000 1100 1200

So in this case, you'll want to increase the 10th value. In my case, it's 53, so bumping that to 55 would probably solve the problem. To do that temporarily:

echo 0 15 26 36 40 42 47 48 50 55 56 59 63 64 68 > /sys/power/vdd1_opps_vsel

To make it permanent, edit /etc/default/kernel-load, and update the line:

VDD1_OPPS_VSEL="0 15 26 36 40 42 47 48 50 53 56 59 63 64 68"

That should do it.

Note though that the processor may be downclocking for short periods while doing DSP related stuff (playing/recording video), and it may be at these voltages the DSP is crashing. So you may have to increase various voltages to get it stable. It takes some patience.

The DSP_OPPS_RATE variable in kernel-load species the frequencies of the DSPs across the CPU freq spectrum in the same way as VDD1_OPPS_VSEL specifies the voltage multipliers, so you can tune the DSP frequencies as well.

To test stability at a given frequency, you could lock the min and max scaling frequencies to the one you're interested in (250, 500, 850, whatever) for short periods to test.
Last edited by nightfire; 2010-04-22 at 14:15.
 

The Following User Says Thank You to nightfire For This Useful Post:
gabby131 is offline gabby131
2010-04-22 , 14:22
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#3225
Originally Posted by thecube View Post
can u pls post the names from the app on the screen
uhhhh? names?

Queen Beecon Widget
Desktop Command Execution Widget
 
izdroid is offline izdroid
2010-04-22 , 14:38
Posts: 5 | Thanked: 0 times | Joined on Jan 2010
#3226
Im using titans maemo24 with ideal settings running at 500-850MHz default.

Will it have a positive effect on battery life and CPU safety if I change to 250-805MHz???
Last edited by izdroid; 2010-04-22 at 14:41.
 
dimkit is offline dimkit
2010-04-22 , 15:08
Posts: 59 | Thanked: 7 times | Joined on Jan 2010
#3227
Im using titans power maemo flasher 24 and when ever i charge my phone , it resets the frequency to 600mhz.
Is this a bug or i am doing something wrong
 
nokian-series is offline nokian-series
2010-04-22 , 15:24
Posts: 169 | Thanked: 41 times | Joined on Apr 2010 @ Portugal
#3228
Like this (?):

Queen Beecon Widget


Originally Posted by gabby131 View Post
uhhhh? names?


Queen Beecon Widget
Desktop Command Execution Widget
 
gabby131 is offline gabby131
2010-04-22 , 15:34
Posts: 1,729 | Thanked: 388 times | Joined on Jan 2010 @ Canada
#3229
Originally Posted by nokian-series View Post
Like this (?):

Queen Beecon Widget


that's what im talkin about.

queen beecon is really useful

would you mind sharing the code for your temp? cant get the awk command right, and sometimes show a -40 after a cold boot.

thanks
Last edited by gabby131; 2010-04-22 at 15:37.
 
AlMehdi is offline AlMehdi
2010-04-22 , 15:40
Posts: 1,751 | Thanked: 844 times | Joined on Feb 2010 @ Sweden
#3230
Originally Posted by izdroid View Post
Im using titans maemo24 with ideal settings running at 500-850MHz default.

Will it have a positive effect on battery life and CPU safety if I change to 250-805MHz???
Yes, but not by much. It depends on the VSEL value discussed in the post above. I would also considering a change to the latest maemo25 kernel.
 
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