>
> > That means I managed to narrow down the issue. It’s firewall with
> > default policy DROP instead of REJECT. It also says something about Xorg
> > doing
> > something on network I have no idea what....
>
> OK, It's even weirder - it's not firewall. It's a network. When I
> disconnect RJ45, no issues, no freezes. When I connect it back and
> start using GUI app from within LXC container, it starts freezing. I
> need to narrow down if it's Network Manager or maybe it's just when a
> host network interface has IP...
It's DNS on host ("> /etc/resolv.conf" fixes the problem). I know I
have some issues with the DNS but I had no idea that this might have
such an effect. So Will was right - DNS. I just didn't realize I
should debug DNS outside of a container (on host) ;-).
Thank you both Marco and Will!
