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-   -   Compiling custom kernels for P1.1 (with fiasco-gen) (https://talk.maemo.org/showthread.php?t=43420)

nightfire 2010-04-17 23:02

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
Well, glad it fixed it, but it's kinda strange the powersaving mode is giving you trouble. I guess it could be an AP compatibility issue, especially if you've seen it before.

On another note, everyone check out these voltages I'm running now!

Code:

VDD1_OPPS_VSEL="17 17 20 30 33 35 40 43 45 47 50 53 58 64 70"
I sat and tweaked each individual voltage whatever the device was stable at, plus 2. Can't wait to see what my battery life is like now. :)

I'm currently using 250 / 500 / 750 / 1ghz.

smirnnoff_gurl905 2010-04-18 01:16

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
Quote:

Originally Posted by nightfire (Post 615122)
This does sound like a wifi driver problem, but my wifi got faster when I switched to titan's kernel; I think there were some driver improvements in 2.6.28.10.

I suspect it has to do with power saving; try turning it off to see if it fixes it; not a permanent solution but just another data point -

(from memory)
Settings->Connections
Edit your connection.. next, next, next, advanced
Flip over to the last tab, and there should be a powersaving dropdown box; select Off

If it fixes it, this may be a new bug.

hi im ciel
from canada i have nokia n900 version :3.2010.02-8.002
everything works fine... but the wifi and the bluetooth is not working when i search for my router my n900 says "no connection available... even the bluetooth
i tried x-terminal i key in 'help' its says :no bt adapter
can u help me pls i never tried flashing cause i just get this phone from my sister... i dont know anything about maemo os ...
thank you very much

smirnnoff_gurl905 2010-04-18 01:20

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
can u teach how to do this im new to maemo just had my n900 for a week
thnxs

titan 2010-04-18 07:00

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
did this problem only occur after installing the kernel-power-flasher?
If not, then this is not the appropriate thread for such questions.
This thread is only about the "community" kernel.

Quote:

Originally Posted by smirnnoff_gurl905 (Post 615435)
hi im ciel
from canada i have nokia n900 version :3.2010.02-8.002
everything works fine... but the wifi and the bluetooth is not working when i search for my router my n900 says "no connection available... even the bluetooth
i tried x-terminal i key in 'help' its says :no bt adapter
can u help me pls i never tried flashing cause i just get this phone from my sister... i dont know anything about maemo os ...
thank you very much


titan 2010-04-18 07:07

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
Quote:

Originally Posted by nightfire (Post 615122)
This does sound like a wifi driver problem, but my wifi got faster when I switched to titan's kernel; I think there were some driver improvements in 2.6.28.10.
I suspect it has to do with power saving; try turning it off to see if it fixes it; not a permanent solution but just another data point -
If it fixes it, this may be a new bug.

I can confirm that disabling power-saving reduces latency from 50ms -> 5ms
but it increases the battery drain drastically.
There are several WLAN bugfixes in the PR1.2 patches which might have caused
the higher latency. the IPv6 support and the 2.6.28.10 patches could be alternative causes but I suspect its the PR1.2 fixes.
I'll do a test with a kernel w/o the those fixes.

smirnnoff_gurl905 2010-04-18 07:18

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
Quote:

Originally Posted by titan (Post 615636)
I can confirm that disabling power-saving reduces latency from 50ms -> 5ms
but it increases the battery drain drastically.
There are several WLAN bugfixes in the PR1.2 patches which might have caused
the higher latency. the IPv6 support and the 2.6.28.10 patches could be alternative causes but I suspect its the PR1.2 fixes.
I'll do a test with a kernel w/o the those fixes.

thnxs titan.the wlan n bt is not working...and my other n900 the battery fried lol... @ocing 900mhz ..
get back to me..

rooted 2010-04-18 10:01

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
Quote:

Originally Posted by nightfire (Post 615349)
Well, glad it fixed it, but it's kinda strange the powersaving mode is giving you trouble. I guess it could be an AP compatibility issue, especially if you've seen it before.

On another note, everyone check out these voltages I'm running now!

Code:

VDD1_OPPS_VSEL="17 17 20 30 33 35 40 43 45 47 50 53 58 64 70"
I sat and tweaked each individual voltage whatever the device was stable at, plus 2. Can't wait to see what my battery life is like now. :)

I'm currently using 250 / 500 / 750 / 1ghz.


@titan
@nightfire

Can you provide the WHOLE table of voltages with kernel values and corresponding voltages. Which is the lowest possible, the highest possible and the formula and/or table for all possible voltages?

titan 2010-04-18 10:07

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
check the wiki and this table

17 = 0x11 = 0.812V x 0 MHz = 0
17 = 0x11 = 0.812V x 125 MHz = 83
20 = 0x14 = 0.850V x 250 MHz = 181
30 = 0x1e = 0.975V x 500 MHz = 475
33 = 0x21 = 1.012V x 550 MHz = 564
35 = 0x23 = 1.038V x 600 MHz = 646
40 = 0x28 = 1.100V x 700 MHz = 847
43 = 0x2b = 1.137V x 750 MHz = 970
45 = 0x2d = 1.163V x 810 MHz = 1095
47 = 0x2f = 1.188V x 850 MHz = 1199
50 = 0x32 = 1.225V x 900 MHz = 1351
53 = 0x35 = 1.263V x 950 MHz = 1514
58 = 0x3a = 1.325V x 1000 MHz = 1756
64 = 0x40 = 1.400V x 1100 MHz = 2156
70 = 0x46 = 1.475V x 1150 MHz = 2502


Quote:

Originally Posted by rooted (Post 615807)
Can you provide the WHOLE table of voltages with kernel values and corresponding voltages. Which is the lowest possible, the highest possible and the formula and/or table for all possible voltages?


nightfire 2010-04-18 17:33

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
I'm curious if this voltage map is stable for anyone else. Been 24 hours and no lockups, oopses, segv's, or anything.

debernardis 2010-04-18 17:50

Re: Compiling custom kernels for P1.1 (with fiasco-gen)
 
Quote:

Originally Posted by nightfire (Post 616350)
I'm curious if this voltage map is stable for anyone else. Been 24 hours and no lockups, oopses, segv's, or anything.

I have merged your voltages with mine, and presently running a some days-old Titan's kernel, 2.6.28-maemo22, 500 to 950 MHz, with the following table:

"17 17 20 30 33 35 40 43 45 46 50 53 58 64 70"

No problems whatsoever.


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