CPU or GPU overclocking possible?


#42

Thnx mate really appreciate!
Thnx!


#43

I tried the Odroid_C2_u-boot from CoreELEC-S905.arm-9.0-nightly_20190131.tar and the max frequency is still 1536. Reverting back to the uboot from Libreelec allows 1752 again. I’ve been using these commands to write uboot onto the emmc:

dd if=Odroid_C2_u-boot of=/dev/mmcblk0 conv=fsync bs=1 count=112 status=none
dd if=Odroid_C2_u-boot of=/dev/mmcblk0 conv=fsync bs=512 skip=1 seek=1 status=none


#44

@zaphod24 as I said in my previous message, you will have to wait for the next nightly image.

You also have to add max_freq='1752' to your config.ini.


#45

Apologies, I thought the next nightly was tonight(time zone differences maybe?)

I’ll look at the 2/1 build.


#46

Maybe it is, I’m not sure, it’s out of my hands nightlies, but I know that the changes definitely work because one of our developers tested them.

Make sure you have the above line in your config.ini.


#47

It should already be included in 20190131.
Maybe you could try the config.ini change @adamg suggested.


#48

I believe my config.ini is correct, here is /proc/cmdline:

console=ttyS0,115200 BOOT_IMAGE=kernel.img boot=UUID=0806-3045 disk=UUID=81edefdb-c665-4570-9129-23d8610c699e no_console_suspend logo=osd1,loaded,0x3f800000,1080p60hz vout=1080p60hz,enable vout_mode=hdmi hdmimode=1080p60hz cvbsmode=nocvbs mac=00:1e:06:33:dd:90 consoleblank=0 max_freq=1752 maxcpus=4 hdmitx=cec3f quiet console=tty0 systemd.show_status=auto ssh

I used the dd commands mentioned earlier with the Odroid_C2_u-boot in nightly CoreELEC-S905.arm-9.0-nightly_20190131.tar. The same dd commands work with an older u-boot from the latest Libreelec beta.


#49

@zaphod24 another user already reported ocing works with latest nightly, link


#50

Yeah, I saw that. I’ll give the nightly a shot tonight, but I was hoping to stay on 8.99.1 and just replace the uboot for now.


#51

Well I’m not sure what the updater does different than what I did manually with dd and the Odroid uboot file from the latest nightly, but sure enough updating to it allows a cpu overclock again.

Sorry for the snipe hunt.