Overclock odroid c2 in Libreelec

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Overclock odroid c2 in Libreelec

Unread postby plikmuny » Wed Feb 14, 2018 5:29 am

I searched this forum for overclocking odroid c2. All I found was ram overclock. I followed it and succeeded.
Now I want to have a script to overclock c2.
Is there a simple guide to do so?
Thanks in advance. Also pls tell me how to make the changes permanent once I reboot.
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Re: Overclock odroid c2 in Libreelec

Unread postby bgx » Wed Feb 14, 2018 8:54 pm

Look here:

http://odroid.com/dokuwiki/doku.php?id= ... t_cpu_freq

This works for me on libreelec also but expect not to much. If you rise it too much sometimes a core stuck.
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Re: Overclock odroid c2 in Libreelec

Unread postby plikmuny » Thu Feb 15, 2018 3:08 am

How do I access boot.ini once I flash Libreelec onto emmc?
Is there a program or ftp or computer?
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Re: Overclock odroid c2 in Libreelec

Unread postby bgx » Thu Feb 15, 2018 4:00 am

Just switch SSH on in libreelec and log in over SSH. Then you have to remount flash to read write. And then you can edit boot.ini with nano.

Gesendet von meinem MHA-L29 mit Tapatalk
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Re: Overclock odroid c2 in Libreelec

Unread postby andy5macht » Sun Feb 18, 2018 7:11 pm

Yes this works.
Commands you need:

for mounting:
Code: Select all
mount /flash -o remount,rw

for editing:
Code: Select all
nano /flash/boot.ini
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Re: Overclock odroid c2 in Libreelec

Unread postby plikmuny » Thu Feb 22, 2018 5:46 am

1752 frequency is unstable for me. All I can run is 1656 without any freezing or hangups. Is there a trick to run it at 1752 without freezing?
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Re: Overclock odroid c2 in Libreelec

Unread postby bgx » Thu Feb 22, 2018 6:55 am

Yes, shut up one core. I'm also on 1656. Thats more than enought :-)
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Re: Overclock odroid c2 in Libreelec

Unread postby andy5macht » Fri Mar 02, 2018 5:30 pm

i have found this post from wrxtasy on forum.kodi.tv where core-voltage seems to be pushed to get 1,75Ghz out of our loved C2. 8-)
https://forum.kodi.tv/showthread.php?ti ... pid2675402

@wrxtasy could you explain if and how we can use your patch for other releases/OS so we can all benefit from your efforts.
would be really nice! :mrgreen:
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Re: Overclock odroid c2 in Libreelec

Unread postby bgx » Fri Mar 02, 2018 8:27 pm

@andy5macht Nice finding. Try it. I'm on last leia from raybuntu and I tried gpu overclock and it work for me.
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Re: Overclock odroid c2 in Libreelec

Unread postby andy5macht » Sat Mar 03, 2018 2:16 am

I did.
GPU-Overclock works
RAM-Overclock works
CPU-Overclock works until 1680Mhz here, if I/we want more we have to use wrxtasy´s build i think.
Maybe other devs use the uboot-core-voltage patch as well, would love to try it :o

AmazonVOD in 1080p (SW-Decode) nealy works with these settings on Raybuntu´s LibreELEC leia21:
CPU: 1680Mhz
RAM: 1104Mhz
GPU: 792Mhz
Nealy works means: stuttering(frameskip) only on heavy bitrate scenes.
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Re: Overclock odroid c2 in Libreelec

Unread postby bgx » Sat Mar 03, 2018 8:33 am

Had the same on my C2 only on raybuntu leia 23. With GPU overclock the UI is much faster. Great, know is it like it should.
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Re: Overclock odroid c2 in Libreelec

Unread postby plikmuny » Thu Mar 08, 2018 6:33 am

On leid 23 this modified patched kernel not working... IT says not compatible with leia
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Re: Overclock odroid c2 in Libreelec

Unread postby plikmuny » Mon Apr 02, 2018 11:31 pm

andy5macht wrote:I did.
GPU-Overclock works
RAM-Overclock works
CPU-Overclock works until 1680Mhz here, if I/we want more we have to use wrxtasy´s build i think.
Maybe other devs use the uboot-core-voltage patch as well, would love to try it :o

AmazonVOD in 1080p (SW-Decode) nealy works with these settings on Raybuntu´s LibreELEC leia21:
CPU: 1680Mhz
RAM: 1104Mhz
GPU: 792Mhz
Nealy works means: stuttering(frameskip) only on heavy bitrate scenes.


Can you tell me how to do gpu /CPU/RAM overclock with latest rb build 24 pls
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Re: Overclock odroid c2 in Libreelec

Unread postby andy5macht » Wed Apr 04, 2018 4:29 pm

How i did this:
1. CPU:
Code: Select all
mount /flash -o remount,rw

Code: Select all
nano /flash/boot.ini
just modify the corrseponding line:
Code: Select all
setenv max_freq "1680"



2. RAM:
Code: Select all
wget http://dn.odroid.com/S905/BootLoader/ODROID-C2/c2_update_ddrclk.sh -O ram && chmod +x ram
./ram 1104



3. GPU:
Code: Select all
echo "echo 5 > /sys/class/mpgpu/cur_freq" >> /storage/.config/autostart.sh
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Re: Overclock odroid c2 in Libreelec

Unread postby plikmuny » Thu Apr 05, 2018 3:03 am

Does it work on latest build from Raybuntu's build or only in particular version? Which version of LE have you tried it?
Thanks in advance. .
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Re: Overclock odroid c2 in Libreelec

Unread postby andy5macht » Fri Apr 06, 2018 6:28 pm

It does work on all Builds i tried. As far as i know: Raybuntu >= RB21 and adamg from 20180404
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Re: Overclock odroid c2 in Libreelec

Unread postby plikmuny » Sat Apr 07, 2018 5:50 pm

Where did you get the adamg build for odroid c2?
As far as I know there is no build from adamg build for c2. Can you share a link to download and tell me how to update from rb24 build to adamg 04.04.18 build?
Thanks in advance.
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Re: Overclock odroid c2 in Libreelec

Unread postby rooted » Mon Apr 09, 2018 10:27 am

plikmuny wrote:Where did you get the adamg build for odroid c2?
As far as I know there is no build from adamg build for c2. Can you share a link to download and tell me how to update from rb24 build to adamg 04.04.18 build?
Thanks in advance.
Maybe this?:

https://libreelec.adamg.co.uk/releases/devel/
User avatar
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Re: Overclock odroid c2 in Libreelec

Unread postby legómina » Mon Apr 09, 2018 4:19 pm

This build is not compatible with odroid c2.
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Re: Overclock odroid c2 in Libreelec

Unread postby plikmuny » Tue Apr 10, 2018 2:04 am

legómina wrote:This build is not compatible with odroid c2.
rooted wrote:
plikmuny wrote:Where did you get the adamg build for odroid c2?
As far as I know there is no build from adamg build for c2. Can you share a link to download and tell me how to update from rb24 build to adamg 04.04.18 build?
Thanks in advance.
Maybe this?:

https://libreelec.adamg.co.uk/releases/devel/


True...it's not compatible with c2
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Re: Overclock odroid c2 in Libreelec

Unread postby phobos » Fri Jun 01, 2018 11:26 pm

andy5macht wrote:I did.
GPU-Overclock works
RAM-Overclock works
CPU-Overclock works until 1680Mhz here, if I/we want more we have to use wrxtasy´s build i think.
Maybe other devs use the uboot-core-voltage patch as well, would love to try it :o

AmazonVOD in 1080p (SW-Decode) nealy works with these settings on Raybuntu´s LibreELEC leia21:
CPU: 1680Mhz
RAM: 1104Mhz
GPU: 792Mhz
Nealy works means: stuttering(frameskip) only on heavy bitrate scenes.


How do i check if the gpu is on 792Mhz?
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Re: Overclock odroid c2 in Libreelec

Unread postby flappy81 » Sat Jun 09, 2018 8:41 pm

Is there no way to edit the RAM and GPU frequencies like the CPU? I'm doing it by plugging the eMMC into a card reader and edit the boot.ini it with Notepad++ in Windows.
Linux is beyond me.
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