[TheRealDeadMan]

Don't think that crash log is showing anything about that... On screen it was showing this:

LibreELEC (Milhouse.next): devel-20191209221944-#1209x-gd0f5bf5 [Build #1209x][FAILED] Failed to start Xorg Server. 
See 'systemctl status xorg.service' for details. 
[DEPEND] Dependency failed for Fluxbox Window Manager. 
[ OK ] Reached target Graphical Interface.
       Starting Intel switch to full range...
[ OK ] Started intel switch to full range.
       Starting Medi Media Center...
[ OK ] Started Kodi Media Center.
[ OK ] Reached target Medi Medlacenter Interface.

It's not crashing, it just doesn't like your AMD Vega GPU.

Can you install #1209x again, connect with ssh and run:

text:


journalctl -a | paste

paste /var/log/Xorg.0.log

then post both urls. Thanks. 

Here you go:

LibreELEC (Milhouse.next): devel-20191209221944-#1209x-gd0f5bf5 (Generic.x86_64)
LibreELEC:~ # journalctl -a | paste
http://ix.io/24dv
LibreELEC:~ # paste /var/log/Xorg.0.log
http://ix.io/24dw
LibreELEC:~ #