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The N900 is now 15 years old! (9)
to Nokia N900 by Arno_11 - 13 hrs, 9 mins ago -
Sailfish OS for the Motorola Moto G7 Power (XT1955-5) - (ocean) (4)
to SailfishOS by Maemish - 6 days, 1 hr ago - more...
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2011-11-14
, 12:18
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Posts: 5,028 |
Thanked: 8,613 times |
Joined on Mar 2011
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#2032
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Originally Posted by Gusse
Hey, let's remain on the sane side of the Force. If voltages below 20 result in problems while unlocking, I just imagine what may happen during more demanding (instant big differences in current) situations.
Turning display on from side switch at 125M with low voltages cause reboot (32wd_to).
Voltages below 20 seems to be problematic when device is waked with side switch. Sometimes it wake -up OK, but time to time nothing happens on screen and 32k WD kick-in causing reboot. Also if side switch is pulled several times (display on & off) then this is also causing reboot.
Otherwise 125:12,90 is OK if you won't let it go sleep/deep-sleep or what it is doing when display is off.
EDIT: Verified with 2 devices. No matter if SR is enable or not.
I'm also not 100% sure about risk of filesystem corruption because of "sneaky" undervoltage (one that doesn't result in reboots, but may result in CPU calculating with errors), but I do believe, that I encountered it once, long time ago. Despite being careful with things I install, many things started to act bizarrely, or just get plain broken, and it was getting worse over time. I was using so-called "ideal" undervolting profiles - without random reboots - and it was one and only time, when I had to reflash - after that, installing the same packages etc, but using custom profile with much higher voltages, I *never* encountered such problems again.
So, as I've said - I can't be 100% sure, but it seems to me that it isn't urban legend. Saving battery life is cool, but lets don't get over-excited with it, and remain in sane, 150% stable values, +1 value up, just in case
/Estel
__________________
N900's aluminum backcover / body replacement
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N900's HDMI-Out
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Camera cover MOD
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Measure battery's real capacity on-device
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TrueCrypt 7.1 | ereswap | bnf
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Hardware's mods research is costly. To support my work, please consider donating. Thank You!
N900's aluminum backcover / body replacement
-
N900's HDMI-Out
-
Camera cover MOD
-
Measure battery's real capacity on-device
-
TrueCrypt 7.1 | ereswap | bnf
-
Hardware's mods research is costly. To support my work, please consider donating. Thank You!
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2011-11-14
, 12:24
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Posts: 111 |
Thanked: 27 times |
Joined on Apr 2010
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#2033
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seems stable for me with 250-900 with SR enabled.
Could someone explain how the initial votages used - eg starving profile or ulv etc etc) will effect the smart reflex? cause my ideas on SR is that it intelligently adjusts the voltage? thanks in advance
Could someone explain how the initial votages used - eg starving profile or ulv etc etc) will effect the smart reflex? cause my ideas on SR is that it intelligently adjusts the voltage? thanks in advance
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2011-11-14
, 14:14
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Posts: 151 |
Thanked: 93 times |
Joined on Sep 2009
@ sofia, bulgaria
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#2034
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@freemangordon
I've successfully enabled/used 720p in the very beginning of the announcement, all was fine, just battery started to drain too fast (~10-12 hours max with moderate use). Therefore I restore my previous kp48 and everything was fine, but without 720p of course.
I can see that you've managed to fix SR, so it suppose to save some battery while kp49 + 720p, so I decide to try again with 720p/kp49.
I can see everything playing fine. I'm still measuring my battery duration, but I'm optimistic.
I want to help you, so this become a stable change, here are some info that could be in use for you. Let me know if you need more info, I would be glad to share or test anything. I've tried playing 720p content @500 and @805, both played ok:
# cat /proc/cpuinfo
# cat /sys/power/Efuse
# cat /sys/power/idcode
# kernel-config show
Надявам се някой ден да те почерпя няколко бири (или каквото пиеш) някъде в София. Безспорно си заслужил.
I've successfully enabled/used 720p in the very beginning of the announcement, all was fine, just battery started to drain too fast (~10-12 hours max with moderate use). Therefore I restore my previous kp48 and everything was fine, but without 720p of course.
I can see that you've managed to fix SR, so it suppose to save some battery while kp49 + 720p, so I decide to try again with 720p/kp49.
I can see everything playing fine. I'm still measuring my battery duration, but I'm optimistic.
I want to help you, so this become a stable change, here are some info that could be in use for you. Let me know if you need more info, I would be glad to share or test anything. I've tried playing 720p content @500 and @805, both played ok:
# cat /proc/cpuinfo
Code:
Processor : ARMv7 Processor rev 3 (v7l) BogoMIPS : 499.92 Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x1 CPU part : 0xc08 CPU revision : 3 Hardware : Nokia RX-51 board Revision : 2101 Serial : 0000000000000000
# cat /sys/power/Efuse
Code:
0089a5b5 009ac2ec 00aad595 00aac089 00abaffe 00ab95dd 00ab86c9 00bbfbbe 00bbecb4
# cat /sys/power/idcode
Code:
IDCODE: 4b7ae02f Production ID: 00000000 00000000 000000cc cafeb7ae Die ID: 1700e003 04036ecf 00000000 0ad80004
# kernel-config show
Code:
current kernel configuration: current frequency: 805 supported frequencies: 125 250 500 550 600 720 805 850 900 950 1000 1100 1150 min. frequency: 250 max. frequency: 805 avoid frequencies: 125 active frequencies: 250:38,180 500:48,360 550:54,400 600:60,430 720:60,520 805:60,600 850:60,600 900:60,600 950:60,600 1000:60,600 1100:72,600 1150:72,600 SmartReflex VDD1=1, VDD2=1 governor ondemand: ignore nice load= 0, up threshold= 95, sampling rate= 300000, powersave bias= 0
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2011-11-14
, 14:49
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Posts: 238 |
Thanked: 131 times |
Joined on May 2011
@ Bulgaria
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#2035
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Originally Posted by lidow
Надявам се някой ден да те почерпя няколко бири (или каквото пиеш) някъде в София. Безспорно си заслужил.
Last edited by disappear; 2011-11-14 at 16:03.
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2011-11-14
, 14:59
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Banned |
Posts: 778 |
Thanked: 337 times |
Joined on Jun 2010
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#2036
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Originally Posted by disappear
in mader russia, u kill me.
За пръв път се чувствам задоволство когато чета мнение в този форум.Иначе да безпорно freemangordon заслужава много повече от бира а и мисля че той има най-важното което човек иска да притежава нашето уважение
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2011-11-14
, 15:16
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Posts: 238 |
Thanked: 131 times |
Joined on May 2011
@ Bulgaria
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#2037
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Originally Posted by fahadj2003
in mader russia, u kill me
Second:then comment
and finally:nothing personal but very stupid opinion
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2011-11-14
, 15:24
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Posts: 238 |
Thanked: 131 times |
Joined on May 2011
@ Bulgaria
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#2039
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Ok.No problems
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2011-11-14
, 15:30
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Posts: 334 |
Thanked: 118 times |
Joined on Apr 2010
@ United Kingdom
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#2040
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Originally Posted by moepda
sorry to bump my post up but @freemangordan could you explain which bridgedriver ?
just a quick question... using freemangordans 720p files +kp49 for video and when installing the test kp49.deb files i was asked if i wanted to update my etc/modprobe.d/bridgedriver as package maintainer supplied newer version . i chose to keep my installed version but am not sure if i should install newer version ? videos still work (test.avi etc) but still not sure which is the best action to take...
*edit* , i see on the kp49 from 1st november that no bridgedriver is supplied in kernel-power-modules_2.6.28-10power49_armel.deb so is this new addition needed for my 720p ?
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| Tags |
| battery-status, bq27x00_battery, kernel, kernel-power, misiak4king, noobs-cant-read, pali4president, patches, readdirections, revolverspinyou |
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All times are GMT. The time now is 06:51.
With your expertise and all, would you mind explaining as to why I should leave dsp overclocking for higher frequencies like knobby when it actually works on my device at low? I even had 600/600, perfectly stable, but didn't see much of a difference with 520, so lowered back.
Thanks in advance.