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N900 is not recognizable on any of my devices (windows 10,7, xp) What can I do? (1)
to Nokia N900 by nieldk - 4 days ago - more...
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zombiegavins |
2010-05-06
, 16:05
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Posts: 150 |
Thanked: 20 times |
Joined on May 2010
@ UK
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#3481
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can someone give me the command lines to reinstall the default nokia kernel and remove kernel power, power settings and the advanced kernel packages as my phone seems to have become a teeny bit unstable
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2010-05-06
, 16:35
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Posts: 1,751 |
Thanked: 844 times |
Joined on Feb 2010
@ Sweden
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#3482
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Originally Posted by zombiegavins
Do you not read what ppl write for you? I took me time and explained everything for you...
can someone give me the command lines to reinstall the default nokia kernel and remove kernel power, power settings and the advanced kernel packages as my phone seems to have become a teeny bit unstable
Go back 8 posts and read it again!
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2010-05-06
, 18:31
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Posts: 24 |
Thanked: 6 times |
Joined on May 2010
@ Turku, Finland
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#3483
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Originally Posted by jakiman
I cant revert back to the stock with this command, it always tells about something missing or fu**ed up. I tried apt-get update and everything terminal suggested but no, still cant revert. Whats the matter?
1. Launch xterminal
2. sudo gainroot (assuming you have rootsh installed)
3. apt-get install --reinstall kernel kernel-flasher
4. reboot
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2010-05-06
, 18:44
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Posts: 1,751 |
Thanked: 844 times |
Joined on Feb 2010
@ Sweden
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#3484
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Originally Posted by Tzoni
Copy/paste the output of the error or the missing packages.
I cant revert back to the stock with this command, it always tells about something missing or fu**ed up. I tried apt-get update and everything terminal suggested but no, still cant revert. Whats the matter?
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2010-05-06
, 18:53
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Posts: 334 |
Thanked: 118 times |
Joined on Apr 2010
@ United Kingdom
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#3485
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Originally Posted by Tzoni
I cant revert back to the stock with this command, it always tells about something missing or fu**ed up. I tried apt-get update and everything terminal suggested but no, still cant revert. Whats the matter?
using pr 1.2 ? cant restore stock kernal on pr1.2 as not officially out yet so kernal cant be downloaded , guess only way may be deconstruct pr1.2 bin file if possible ? if your on pr 1.1 not a clue to the solution so sorry cant help only novice myself !
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2010-05-06
, 22:53
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Posts: 37 |
Thanked: 5 times |
Joined on Apr 2010
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#3486
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Would there be any benefits to disabling CPU scaling and enabling one constant frequency (e.g. 1000MHz)?
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2010-05-06
, 23:02
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Posts: 658 |
Thanked: 117 times |
Joined on Jan 2010
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#3487
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Originally Posted by vigilius
Yes that would most probably **** up your device.
Would there be any benefits to disabling CPU scaling and enabling one constant frequency (e.g. 1000MHz)?
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2010-05-06
, 23:30
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Posts: 992 |
Thanked: 995 times |
Joined on Dec 2009
@ California
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#3488
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No, it would not kill your N900.
In theory, it is better than scaling because:
1) higher frequency saves more energy - I am lazy to repeat all my measurement which shows that but you can browse this thread back.
2) no switching - no expenses on switching.
3) fast reaction.
But my measurements show that there is one disadvantage -
ARM has two VDD and VDD2 is used to power peripherals (bus, SGX etc). And it needs to be powered more with higher frequency. So, the energy consumption on high frequency is a little more in practice - in simple CPU intensive calculation it gives a better result but in case of day-to-day usage the peripherals eat this advantage.
However, it is not big and you may try in your N900, especially with different voltage setup.
In theory, it is better than scaling because:
1) higher frequency saves more energy - I am lazy to repeat all my measurement which shows that but you can browse this thread back.
2) no switching - no expenses on switching.
3) fast reaction.
But my measurements show that there is one disadvantage -
ARM has two VDD and VDD2 is used to power peripherals (bus, SGX etc). And it needs to be powered more with higher frequency. So, the energy consumption on high frequency is a little more in practice - in simple CPU intensive calculation it gives a better result but in case of day-to-day usage the peripherals eat this advantage.
However, it is not big and you may try in your N900, especially with different voltage setup.
| The Following User Says Thank You to egoshin For This Useful Post: | ||
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2010-05-06
, 23:38
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Posts: 1,729 |
Thanked: 388 times |
Joined on Jan 2010
@ Canada
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#3489
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Originally Posted by egoshin
i believe egoshin means that in higher frequencies, the power is more efficient for the reason being:
No, it would not kill your N900.
In theory, it is better than scaling because:
1) higher frequency saves more energy - I am lazy to repeat all my measurement which shows that but you can browse this thread back.
2) no switching - no expenses on switching.
3) fast reaction.
But my measurements show that there is one disadvantage -
ARM has two VDD and VDD2 is used to power peripherals (bus, SGX etc). And it needs to be powered more with higher frequency. So, the energy consumption on high frequency is a little more in practice - in simple CPU intensive calculation it gives a better result but in case of day-to-day usage the peripherals eat this advantage.
However, it is not big and you may try in your N900, especially with different voltage setup.
the CPU has less time and effort running from a low frequency to a higher which is needed, if your on idle @ 0mhz and runs an app which requires 1000mhz (for example) the cpu will run with all its efforts from 0mhz to meet the desired frequency.
__________________
if i did help you, just click "Thanks" on the lower right of my post. thanks!
"The best way to break a Spell is to prevent it from being cast in the first place"
N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
if i did help you, just click "Thanks" on the lower right of my post. thanks!
"The best way to break a Spell is to prevent it from being cast in the first place"
N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
| The Following User Says Thank You to gabby131 For This Useful Post: | ||
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2010-05-07
, 07:44
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Posts: 3,319 |
Thanked: 5,610 times |
Joined on Aug 2008
@ Finland
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#3490
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Locking to speeds that require overvoltage (the levels used at 550/600 MHz speeds with factory settings) is *EXACTLY* what is stated by Nokia engineers to be known to be able to kill the CPU - and from this thread, 1000MHz is not readily attainable without using those voltages.
Last edited by attila77; 2010-05-07 at 07:46.
__________________
Blogging about mobile linux - The Penguin Moves!
Maintainer of PyQt (see introduction and docs), AppWatch, QuickBrownFox, etc
Blogging about mobile linux - The Penguin Moves!
Maintainer of PyQt (see introduction and docs), AppWatch, QuickBrownFox, etc
Last edited by attila77; 2010-05-07 at 07:46.
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