Binary patched kernels for Pipo models

[giouncino]

I'm sorry, but I do not speak English well. I'm Italian ..... I'd say that putting a kernel mod, I force the connection to 2g. I therefore fail to take advantage of the 3g ...

You are right, with Jelly bean (i do not know if KitKat does the same) any kernel mod seems to affect 3G performance/stability for unknown reasons...at the moment

PS: I'm Italian too

[annaepi]

You are right, with Jelly bean (i do not know if KitKat does the same) any kernel mod seems to affect 3G performance/stability for unknown reasons...at the moment

PS: I'm Italian too

However, wait for a version of Kit Kat that allows me to use sky go .. at this time I can not give up the 3G, because the 2G is slow ..
Ps: Even you Italian? how beautiful

[stevejc]

I have posted the kernel of M8HD some posts above: http://www.freaktab.com/showthread.p...l=1#post156709

And the modified script that I'm trying to use here

giouncino have you tried to patch the kernel of M8HD ?

Then I can test it, with my script I can't do anything about DDR.

But with CPU to 1704 and undervolted, I ve a good solution with KiKat, only 0.2% per hour in deep sleep.

[giouncino]

giouncino have you tried to patch the kernel of M8HD ?

Then I can test it, with my script I can't do anything about DDR.

But with CPU to 1704 and undervolted, I ve a good solution with KiKat, only 0.2% per hour in deep sleep.

I've had some personal trouble that wasted my spare time in the previous days.
I will make some tests on M8HD kernels this evening.

Stay tuned!

[giouncino]

However, wait for a version of Kit Kat that allows me to use sky go .. at this time I can not give up the 3G, because the 2G is slow ..
Ps: Even you Italian? how beautiful

Did you try the stock libril I've posted on some previous pages? It will improve 3G signal strength, even if you need to give up on deep sleep with that...

a presto,
ciao!

[giouncino]

FIRST ATTEMPT FOR M8HD - TOTALLY UNVERIFIED

giouncino have you tried to patch the kernel of M8HD ?

Then I can test it, with my script I can't do anything about DDR.

But with CPU to 1704 and undervolted, I ve a good solution with KiKat, only 0.2% per hour in deep sleep.

This is a first attempt to make a valid kernel for M8HD...
You can try this one.
I cannot give you any warranty if it is working or not.
The main issue I can see is that after the modification the table 8 and 9 changed their default name as follow:

WAS: "256 DDR_FREQ_NORMAL" to: "1 DDR_FREQ_SUSPEND"
and WAS: "1 DDR_FREQ_SUSPEND" is: "2 DDR_FREQ_VIDEO"

this is due to how the system variables of the script are set, on following tests I will change the system variable tables too, but I prefer to have some feedback about this kernel mod, but the name of frequency could be not so important (i suppose...). I left untouched the relationship between the "normal freq" of table 8 and table 9 in terms of frequency difference:

was:
== Table 8 at offset 10224340 ==
MHz mV
528 1250 256 DDR_FREQ_NORMAL

== Table 9 at offset 10224356 ==
MHz mV
200 950 1 DDR_FREQ_SUSPEND
460 1150 256 DDR_FREQ_NORMAL

is:
== Table 8 at offset 10224340 ==
MHz mV
720 1250 1 DDR_FREQ_SUSPEND

== Table 9 at offset 10224356 ==
MHz mV
200 950 2 DDR_FREQ_VIDEO
652 1150 1 DDR_FREQ_SUSPEND

here is the file:
kernel_M8HD_cpustock_gpu600_ddr720_test_1.zip

[stevejc]

This is a first attempt to make a valid kernel for M8HD...
You can try this one.
I cannot give you any warranty if it is working or not.
The main issue I can see is that after the modification the table 8 and 9 changed their default name as follow:

WAS: "256 DDR_FREQ_NORMAL" to: "1 DDR_FREQ_SUSPEND"
and WAS: "1 DDR_FREQ_SUSPEND" is: "2 DDR_FREQ_VIDEO"
.......

Thanks, I have tested it.

Same result as my test : poor fps in Antutu test.
Can't reach more than 14 fps, with kernel stock reach 20.5

Antutu score : 17700 / Riley 1.6 : 19500

So maybe the number is significant.

[giouncino]

Thanks, I have tested it.

Same result as my test : poor fps in Antutu test.
Can't reach more than 14 fps, with kernel stock reach 20.5

Antutu score : 17700 / Riley 1.6 : 19500

So maybe the number is significant.

The good: the tablet boot!

then I will modify the script as soon as I can to get the correct number!

thanks for the prompt testing

[stevejc]

The good: the tablet boot!

then I will modify the script as soon as I can to get the correct number!

thanks for the prompt testing

You get it.

I have change DDR table

[1250000, 667001],

by

[1250000, 667256],

And now get 20500 !

[giouncino]

You get it.

I have change DDR table

[1250000, 667001],

by

[1250000, 667256],

And now get 20500 !

On which table?
Which is the name your script gave to that value?

[stevejc]

On which table?
Which is the name your script gave to that value?

on the first DDR table number 8. just one value

my %ddr_profiles = (
"ddrstock" =>
[
# [1100000, 400002],
[1250000, 528256],
],
#
"ddr667" =>
[
# [1100000, 400002],
[1250000, 667256],
],

My tablet doesn't work stable at 720 with 4.2.2

[giouncino]

on the first DDR table number 8. just one value

my %ddr_profiles = (
"ddrstock" =>
[
# [1100000, 400002],
[1250000, 528256],
],
#
"ddr667" =>
[
# [1100000, 400002],
[1250000, 667256],
],

My tablet doesn't work stable at 720 with 4.2.2

Reopen the mod kernel with the script to see how it is called the modified freq:
Ddr suspend
Ddr normal
Ddr video
Or what else?

[stevejc]

Reopen the mod kernel with the script to see how it is called the modified freq:
Ddr suspend
Ddr normal
Ddr video
Or what else?

With a test at 720 I've got this with modified kernel

== Table 8 at offset 10224340 ==
MHz mV
720 1300 256 DDR_FREQ_NORMAL

== Table 9 at offset 10224356 ==
MHz mV
200 950 1 DDR_FREQ_SUSPEND
460 1150 256 DDR_FREQ_NORMAL

In fact D33 give me his modifed script tat he makes for TV Stick
For TV stick, there are two values for DDR, I make a mistake when I change the values

This is the change he made (you notice 256 value)

# DDR profiles
# the final digit of the frequency signifies the following:
# 1 DDR_FREQ_SUSPEND
# 2 DDR_FREQ_VIDEO
# 4 DDR_FREQ_VIDEO_LOW
# 8 DDR_FREQ_DUALVIEW
# 16 DDR_FREQ_IDLE
# 256 DDR_FREQ_NORMAL
# only 1, 2 and 256 seem to be used in the source code for KitKat Android sticks and even though 2 is set it doesn't seem to be used. Worse - it causes instability in the CS919 TV Box so I removed it


my %ddr_freq_type_map = (
0 => "",
1 => "1 DDR_FREQ_SUSPEND",
2 => "2 DDR_FREQ_VIDEO",
4 => "4 DDR_FREQ_VIDEO_LOW",
8 => "8 DDR_FREQ_VIDEO_LOW",
16 => "16 DDR_FREQ_IDLE",
256 => "256 DDR_FREQ_NORMAL"
);

This is my working script : here

[giouncino]

With a test at 720 I've got this with modified kernel

== Table 8 at offset 10224340 ==
MHz mV
720 1300 256 DDR_FREQ_NORMAL

== Table 9 at offset 10224356 ==
MHz mV
200 950 1 DDR_FREQ_SUSPEND
460 1150 256 DDR_FREQ_NORMAL

In fact D33 give me his modifed script tat he makes for TV Stick
For TV stick, there are two values for DDR, I make a mistake when I change the values

This is the change he made (you notice 256 value)

# DDR profiles
# the final digit of the frequency signifies the following:
# 1 DDR_FREQ_SUSPEND
# 2 DDR_FREQ_VIDEO
# 4 DDR_FREQ_VIDEO_LOW
# 8 DDR_FREQ_DUALVIEW
# 16 DDR_FREQ_IDLE
# 256 DDR_FREQ_NORMAL
# only 1, 2 and 256 seem to be used in the source code for KitKat Android sticks and even though 2 is set it doesn't seem to be used. Worse - it causes instability in the CS919 TV Box so I removed it


my %ddr_freq_type_map = (
0 => "",
1 => "1 DDR_FREQ_SUSPEND",
2 => "2 DDR_FREQ_VIDEO",
4 => "4 DDR_FREQ_VIDEO_LOW",
8 => "8 DDR_FREQ_VIDEO_LOW",
16 => "16 DDR_FREQ_IDLE",
256 => "256 DDR_FREQ_NORMAL"
);

This is my working script : here

I understood that analyzing modded script.
For your information, on M6pro kitkat releases there is ONLY one table for RAM (and no traces of 256 DDR_FREQ_NORMAL or equivalent).

[stevejc]

I understood that analyzing modded script.
For your information, on M6pro kitkat releases there are ONLY one table for RAM (and no traces of 256 DDR_FREQ_NORMAL or equivalent).

Can we mode the GPU as Randy asks ?

I don't know what values to set.