Thanks for testing. Does it work when you play a video from USB stick?
I'm asking, because I want to know whether the HDHomeRun add-on overwrites the config.txt setting, or LE / Kodi for all sources.
Another config.txt option you could try is hdmi_drive=1. This should kill the HDMI audio completely, because it's DVI mode.
At config.txt remove hdmi_force_edid_audio=1 and add hdmi_ignore_edid_audio=1 instead.
Something's wrong. I tried version 2.4.0 linked in the thread you referenced - no videos play at all any more (several addons). Version 2.4.2 won't even install from zip file.
The instructions at my linked posting are all you need. You did something else for whatever reason. 
You have to enable LIRC by creating the config file /storage/.config/lircd.conf. Read here for details.
The Pimoroni HyperPixel (Touch Version) seems to work, too, if you are able to buy it somewhere.
Just login by SSH and "reboot". The next boot should work normally with your config.
Downgrade to 9.0.2 to avoid safe mode issues.
PS: Suggested power supply for RPi 3 is 2.5A.
Hi bartkauz,
I'm using RPi 3B+ with LE 9.0.2, and the Joyn add-on runs fine.
Update your ISA add-on this way.
I understand that you have to be sure before you buy. I'm German, so I had a look at German language Google results, too:
LibreELEC at RPi 3 with Touchscreen (German)
Maybe Google becomes your friend again, if you use the Google translation for this site. 
First he need to test the touchscreen with evtest program if he get correct (or any) data or not. If touchscreen doesn't work with evtest then he can think of better options.
Correct, proof of concept has to be first. I'm skeptical about it, but I'm thinking in a more abstract way.
I did a little more research about connecting a touchscreen to an RPi. Using the DSI port is the official way to connect one, and it's approved to work with LE. To make an USB touchscreen work, you need high speed USB to transfer display data, but your Rock64 doesn't have it. The fact that it works on Armbian is because it's not optimized for media output.
Get some DSI touchscreens, and you will make it until Halloween.
Your first log has a CEC adapter error, so I would disable CEC.
I would stay with 9.0.2 until 9.2 is final, because it's the most stable release for all RPi lower than version 4B.
Thanks for testing! Then I'm running out of ideas, because using the same image / config leads to different results on RPi 2 / 3.
PS: Be sure to have the jack completely plugged in at your RPi 2.
Can you test composite while HDMI is active? Maybe composite only works when HDMI is connected.
PS: Do you have the composite issue at your RPi 3, too?
At /usr/share/kodi/system/setting/settings.xml the GUI definitions and default values are stored. They are read-only by concept.
Unfortunately <maximum> is part of the GUI definitions, and not editable by overwriting it at /storage/.kodi/userdata/guisettings.xml.
PS: It should be possible to write a slideshow as a Python script. Then you can set the pause as long as you want.
Read here about using composite A/V.
I uploaded the logs via the suggested options in that mode here: http://ix.io/1xhr
You are using LE 9.0.2 on RPi. This combo is known to run very stable.
2019-10-05 20:35:11.438 T:1936855056 ERROR: CProfileManager: error loading special://masterprofile/profiles.xml, Line 0
Failed to open file
2019-10-05 20:35:11.438 T:1936855056 NOTICE: special://profile/ is mapped to: special://masterprofile/
2019-10-05 20:35:11.438 T:1936855056 FATAL: unable to load profileMy bet is a broken microSD card. Follow my above advice to check or repair the card.