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2010-07-14
, 02:45
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Posts: 958 |
Thanked: 483 times |
Joined on May 2010
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#62
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why isn't smartreflex enabled by default?!
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2010-07-14
, 02:57
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Posts: 27 |
Thanked: 15 times |
Joined on Jan 2010
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#63
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Originally Posted by JorgeFX
I enabled smartreflex on both vdd1 and vdd2. I read somewhere if you enable them the reverse order, your suppose to more battery life, but i didnt find that to be so.
did you enabled smart reflex on vdd1 and vdd2 ? or just on one of them?
One of the reasons why Nokia didnt activate it by default is because it sometimes makes the N900 unstable. By unstable I mean it results in frequent resets. In my experience, my N900 works perfect.
Battery life for a device is pinnacle to its usage and success. I dont think much attention is directed toward that field, but it should. I wish i knew more terminal commands in reference to SMART REFLEX.
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2010-07-14
, 02:58
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Posts: 129 |
Thanked: 11 times |
Joined on Jan 2009
@ New York, NY
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#64
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Sorry, I'm a bit new to this, but what is smartreflex? Is it a program? How does it work?
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2010-07-14
, 03:30
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Posts: 958 |
Thanked: 483 times |
Joined on May 2010
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#65
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http://processors.wiki.ti.com/index.php/SmartReflex
it's basically a feature of the OMAP chips of which one is on our N900. it does power management.
it's not a program. think of it as a toggle switch on the chip. you enable it by sending some data to the chip which you can do very easily in linux (linux has a very interesting way of interfacing with this via a filesystem-like interface unlike windows).
it's basically a feature of the OMAP chips of which one is on our N900. it does power management.
it's not a program. think of it as a toggle switch on the chip. you enable it by sending some data to the chip which you can do very easily in linux (linux has a very interesting way of interfacing with this via a filesystem-like interface unlike windows).
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2010-07-14
, 03:49
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Posts: 137 |
Thanked: 34 times |
Joined on Jul 2010
@ United States
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#66
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hey all just letting you know that smartreflex is included in the qcpufreq app which allows for overclocking as well with an easy to use gui
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2010-07-14
, 03:57
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Posts: 306 |
Thanked: 350 times |
Joined on Oct 2009
@ Sydney
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#67
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Originally Posted by Power
I typed "/sys/power/sr_vdd1_autocomp" in X Terminal but get a Permission denied message
Here's what I did in the shell:
root
echo 1 > /sys/power/sr_vdd1_autocomp
echo 1 > /sys/power/sr_vdd2_autocomp
Can you please explain how to do this, and how do I know it's working or not?
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2010-07-14
, 04:03
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Posts: 27 |
Thanked: 15 times |
Joined on Jan 2010
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#68
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Originally Posted by H3llb0und
sudo gainroot
I typed "/sys/power/sr_vdd1_autocomp" in X Terminal but get a Permission denied message
Can you please explain how to do this, and how do I know it's working or not?
echo 1 > /sys/power/sr_vdd1_autocomp
echo 1 > /sys/power/sr_vdd2_autocomp
That will enable Smart Reflex
To check:
cat /sys/power/sr_vdd1_autocomp
If it enabled you will see: 1
If it is not you will see: 0
Last edited by shazzy84; 2010-07-14 at 04:08.
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2010-07-14
, 04:12
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Posts: 214 |
Thanked: 256 times |
Joined on May 2010
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#69
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Originally Posted by Power
I have a standby similar to yours, but the online time you claim to have for several hours (even if you are only online without doing anything) is what I find difficult to believe. That is why I ask you to give us a screenshot from batterygraph, but the first curve before you enabled smartreflex is not as flat as it should be to achieve more than 24hrs of online time, and again, that is what you claim to have.
Okay, I have been experimenting and I enabled smartreflex yesterday and this time Nokia N900 just lost about 1% battery idling with WiFi through the night (8-pm to 7 am), about 11 hours. Even more amazing! Not sure how it will affect my use time, but standby is wow!
Here's what I did in the shell:
root
echo 1 > /sys/power/sr_vdd1_autocomp
echo 1 > /sys/power/sr_vdd2_autocomp
PS: See the break in the batteryeye graph, strange aye? That's when I enabled smartreflex :-)
My batterygraph shows "a very more flat curve than yours" and my N900 don't achieve more than 24hrs even of intermediate usage. The maximum I can achieve is 17hrs of intermediate usage, with 2 or 3 hours of online time and light IM over wifi, like 1hr of browsing time full over wifi, and some web checking during the day over wifi/2.5G, a few calls like 1hr tops, 5 pictures tops, some note taking, some spreadsheet, some appointments managing, like 50 sms tops, and very little music playing. With all that, 17hrs is like heaven to me.
PD: I have the titan's custom kernel with the Starving setting and smartreflex enabled on VDD1 only because enabling it for VDD2 is unstable for me.
Last edited by JorgeFX; 2010-07-14 at 04:30.
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2010-07-14
, 04:32
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Posts: 142 |
Thanked: 8 times |
Joined on Jul 2010
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#70
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Originally Posted by JorgeFX
Well said man.....i also thought how he got that much standby with a grap like that......
I have a standby similar to yours, but the online time you claim to have for several hours (even if you are only online without from batterygraph, but the first curve wifi/2.5G, a few calls like 1hr tops, 5 pictures tops, some note taking, some spreadsheet, some appointments managing, like 50 sms, and very little music playing. With all that, 17hrs is like heaven to me.
btw ur standby also luks awesome(17hrs)...can u brief ur settings???
i get only 12-13 hrs with light usage
that graph luks like it'll give a standby of max 12 hrs if it went like that all the way
@Power--care 2 xplain????we are confused
Last edited by s33; 2010-07-14 at 04:39.
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btw the bug with hildon-desktop consuming high CPU is typically triggered when you go in and out of the application list via the task manager at the top left corner. do it a few rounds and it immediately triggers the high CPU usage. i avoid this problem by putting shortcuts on my desktop.