Openelec Build for OPI PC and 2 now with HW decoding

jernej

Ok, I uploaded last 3.4 images and I'm not taking any bug/feature reports/requests anymore. I will play with mainline kernel from now on and if I manage to do something useful, I will publish here.

cbm80

jernej replied at 2016-3-23 02:13
Where did you find those values? I'm following those published at: https://github.com/linux-sunxi/ ...

Values for dvfs are from the user tkaiser from armbian forum (here his nickname is bronco). He did really strong research to lower overheating also in idle mode. His dvfs values decrease voltage at 480MHz to keep low temperature.
Regarding script.bin I could provide full set of them. But cannot guarantee that I will have always time. It's a little time consuming because I have to do it under Linux, I use OPiPC with Linux distro via ssh. It is not very convenient.
But I looked at binary form of script.bin and it seems that there are 2 bytes which should be replaced for new values. Most convenient would be if anybody provide simple Windows tool to change resolution in ready script.bin without touching anything else.
Such executable could be placed on FAT partition of OpenELEC.

jernej

cbm80 replied at 2016-3-22 23:01
Values for dvfs are from the user tkaiser from armbian forum (here his nickname is bronco). He did  ...

I know tkaiser/bronco well. He usually opens an issue on github if there is something wrong with DVFS settings, but granted, Armbian is using different settings.

Currently, I'm a bit pissed off due to unstable nature of 3.4 kernel. As I said, I will try to avoid this madness with mainline kernel and basically nothing of that (script.bin, DVFS, etc) will matter anymore. It was already a big win to use mainline U-Boot.

cbm80

I have generated new script.bin files. In my case in idle mode OPiPC temperature is about 45C, before it was rather 50.

stillka

Hi,

4k is not working on Orange Pi One 512MB :-(, it's only problem of this device and 1GB devices are fine?

jernej

stillka replied at 2016-3-23 07:43
Hi,

4k is not working on Orange Pi One 512MB :-(, it's only problem of this device and 1GB devices  ...

4K H265 video works fine on my OPi2.

cbm80

But on OPiOne 4K mostly finished in memory problem.

jernej

In the last 24h few interested things happened - new H3 kernel from Allwinner was published and a proper fix for video stuttering was published. Please test this OPiPC image: https://mega.nz/#!gJA3XKCB!wudqR ... kq2U9Y2AxcSW5mC8MBo

I reenabled power button, but it still doesn't work. Please don't mind the LEDs.

cbm80

Yesterday I was watching more using recent 0322 version and I didn't notice any visible stuttering during playback. It is little noticable in RSS scroll. So maybe stuttering in video was fixed in recent version too, at least I couldn't notice anything obvious. What are the changes in the kernel?

jernej

cbm80 replied at 2016-3-24 06:16
Yesterday I was watching more using recent 0322 version and I didn't notice any visible stuttering d ...

Yes, RSS video feed should also be fixed. There is still something problematic with it - after video playback, it needs more CPU, but this is another story. You can try another test. On older images (everything else than image posted 2 posts back), watch RSS feed when you plug in USB keyboard. It freezes for second or two. Basically, entire Kodi freezes, but it is most visible on RSS feed. On latest image, there is no such freeze.

There is enormous amount of kernel changes. Diff file against loboris kernel is 96MB in size. However, I couldn't find any changelog yet, so the only thing I could say is that they updated practically everything and added few new drivers. I didn't manage to trigger kswapd issue for example, but that is not definitive.

BTW, I also included new/old DVFS settings as you suggested.