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[KERNEL][3.0.21+][HD video working now on 16Gb NT] Nook Tablet ICS kernel development

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fickendichdu
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I do know that this is a development thread. The issue I stated on 1 you think would be resolved because titles has been updated to HD video working. Now in regards to the font size being smaller and larger I thought could attribute to the reason HD not working.

The formatting of the system may seem a little redundant. When I would switch to a different Rom either cm7 or 9 and then back I would have reboots. Do that one extra step and no reboots.

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little8020
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Originally Posted by fickendichdu View Post
I do know that this is a development thread. The issue I stated on 1 you think would be resolved because titles has been updated to HD video working. Now in regards to the font size being smaller and larger I thought could attribute to the reason HD not working.

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I know that netflix works on cm9 but the cm10 thread says that hardware decoding doesn't work so that's why you get the black screen and audio, (cm9 with 2.x kernel does that too)
Att Galaxy S3 CM11, Nook tablet CM11

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ibilln
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Originally Posted by sxypapi View Post
Hello guys. has anyone has a mirror link to this kernel? any help will be appreciated
Anyone? Link at OP broken...
 
Rebellos
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(Last edited by Rebellos; 20th August 2012 at 06:24 PM.)
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Quote:
Originally Posted by Zippy Dufus View Post
Hello,

I built using the ducati_test and made two flash attempts. This build would not boot - black screen only with backlight on.
Thanks. Is it a trouble for you to upload whole .zip of that build? I'd like to catch UART dmesg and test it abit.

If it's any kind trouble, don't bother yourself.


//edit:
This is a concept to test out, I've got troubles testing it atm. ^^
For rather advanced users.
Just notice pathes are "AFAIR", probably these differ abit in real.
switch governor to "userspace" (echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_current_governor )
This should disable DVFS
experiment with frequencies (echo <desired_freq> > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed )
Try to hang system on every frequency. It's possible that on some frequencies it will hang more often, on some less often, on others wont hang at all. It's also possible that frequency won't matter at all and it will hang equally often on all freqs.
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Zippy Dufus
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Originally Posted by Rebellos View Post
Thanks. Is it a trouble for you to upload whole .zip of that build? I'd like to catch UART dmesg and test it abit.

If it's any kind trouble, don't bother yourself.
I'm always willing to help on this but I'm now traveling and my time and computing environment are more restricted.

I'm currently testing how stable this build is on airport and hotel wifi networks. I did have a crash this morning where it went into the state that the backlight remained on and I had the hold down the power button for a while (10+ seconds) to completely shut it down. I would be interested if the kernel is still accessible via SSH but I do not have such access now.

My knowledge of UART is almost nothing but if you can point me to where I can read up on it, I may find some time on the weekend to play with it.

Also, could you explain demetris_l's comments in this post? I don't understand the difference of flashing a kernel versus flashing the whole build package. In fact, I quickly looked inside the builds zip file and couldn't recognize a file that would be the kernel. I'm a Fedora Linux user and thought that I should be able to find the kernel file.

I'm pleased with this alpha build of CM10 and would suggest that the focus would be to fix the kernel in it first and return to CM9 afterwards. CM10 appears to be a couple bugs short of awesome!

Cheers.
Nook HD+ - cm-11.0-20140719-UNOFFICIAL-ovation
Samsung Galaxy S - cm-11-20140719-UNOFFICIAL-galaxysmtd
Nook Color - cm-11-20140704-UNOFFICIAL-encore
Nook Tablet (lost) - cm-10.1-20130419-UNOFFICIAL-acclaim
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Rebellos
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Err, ducati_test is ordinary 3.0+ kernel, and it should be as useable in ICS as in JB, and in theory in GB and stuff. So shouldn't matter if you flash CM9 or CM10.
Feedback on my development is highly appreciated, but first you should read this GUIDE and watch this MOVIE.

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Demetris
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boot.img is kernel + ramdisk.
Rebellos in theory All true
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Rebellos
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Lawl, why noone wrote in kernel thread that underclocking does prevent random reboots... I've been suspecting it for some time but haven't suspected someone tested it out already in ROM threads, wuuut. I still need some input with these tests: http://forum.xda-developers.com/show...&postcount=724
Feedback on my development is highly appreciated, but first you should read this GUIDE and watch this MOVIE.

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Pretty owsom Android/Kernel dev tips&tricks: http://omappedia.org/wiki/Android_How-tos

Git HOW-TO by eagleeyetom: http://forum.xda-developers.com/show...php?p=31304826
15-minutes GIT introduction: http://try.github.com
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Demetris
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(Last edited by Demetris; 21st August 2012 at 03:33 AM.)
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For not advanced users use this

http://forum.xda-developers.com/atta...4&d=1310073004
It might work the same.
Notice that is kinda old version of setcpu freely available to xda members taken from here:
http://forum.xda-developers.com/showthread.php?t=505419
Report back if it works, thanks

---------- Post added at 05:08 AM ---------- Previous post was at 04:47 AM ----------

For advanced users that will test this following Rebellos quide i will add some helping hints.

You can use these commands in adb shell or while running nook tablet within a terminal application.

echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

This command will change ondemand (default governor) to userspace then you need to Check Available frequencies with:

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

Then you will get response back from system like:
300000 600000 800000 1008000

So let's say we need to e.g. Switch to 800Mhz, we type this:

echo 800000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed

Then we need to check if our changes took effect by issuing:

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq

We should see a response back from system with:
800000
So now we succesfully set our CPU at 800mhz speed with no options to scale up or down.

I hope i helped.

Also this is how you activate both cores:

chmod 666 /sys/devices/system/cpu/cpu1/online
echo 1 > /sys/devices/system/cpu/cpu1/online
chmod 444 /sys/devices/system/cpu/cpu1/online

To Deactivate Core 1....

chmod 666 /sys/devices/system/cpu/cpu1/online
echo 0 > /sys/devices/system/cpu/cpu1/online
chmod 444 /sys/devices/system/cpu/cpu1/online
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Demetris
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This is crash with 800mhz userspace governor.
adb shell cat /proc/last_kmsg > kmsg.txt
http://pastebin.com/pzRCeZFr

This is crash with 1GHz userspace governor

http://pastebin.com/H0K6Fd0Y

And this is after i disable wifi from rom by deleting firmware and modules and having connected usb on Nook tablet(if not connect usb no last_kmsg output file)

http://pastebin.com/vaRyzrmR

Notice how brightness goes down then up by itself
In the log shows brightness had gone from 101 to 0 and then came back up from 0 to 102!
We dont have brightness control

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