When removing the HDMI monitor and displaying it with the HDMI dongle, the resolution problem was solved.

Language environment is fixed problem.
It does not solve the problem of the ZWO driver crashing.

By the way, although this system seems to be based on Ubuntu 18.04, the desktop environment uses LXDE, and the configuration files of monitors and language environment
It was in /home/pi/.config/.

monitor
/home/pi/.config/autostart/lxrandr-autostart.desktop

language
/home/pi/.config/user-dirs.locale

The Kstars configuration file was also in the same place.

/home/pi/.config/kstarsrc
/home/pi/.config/klanguageoverridesry

We also changed this file, but the language has not switched.

on the ZWO ASI120 - were you saying the cam works with PHD2, but not for KStars/Ekos?

otherwise, if it is also not working with PHD2, I would put my order on hold.

thanks a lot, Helge

ZWO does not work in either environment.

I have the NanoPC-T4 which is also an ARM 64 (RK 3399) running Lubuntu-desktop-xenial (16.04)
The Friendly eflasher version of Lubuntu had several bugs and missing parts in it that it was not usable, until I downloaded the fixes.
Now it runs great, and I have no trouble with the monitors. I did, however, finally decided to add a headless HDMI dongle and that works ever better.
I also noticed there is a lot of differences between VNC clients, and "Chicken on the VNC" was the best and fastest client for Mac.
PK

Is your Lubuntu a 32-bit version of distributed with FrendlyElec?

If this is an ASI120MM or MC camera, meaning the USB2 version, then you need to apply a firmware patch to make it work on Linux. And then it will only work in 8 bit mode. Please search this forum for a solution as it has been discussed many times before.
I have an ASI120MC-S (i.e. USB3 version) and it works flawlessly on Linux.

Firmware patch has already been applied.

It works on RPi 3 (ARM 32 Bit, Ubuntu MATE), Orengi Pi (ARM 32 Bit, Armbian), Beelink AP 34 (INTEL 64 Bit, Ubuntu 16.04), but it does not seem to work with the driver for ARM 64.
(Does it work on 64 bit system for ARM 64?)

Hmm I used to have an ASI120MC (USB2) as well and flashed the firmware. I never could get it to work on my Debian Linux 64 bit laptop either but then I never tried 8 bit video. Not sure if that's related or not.

In comparison, Intel CPU Ubuntu is the most stable.

At ARM, RPi 3 is now stable, but at the beginning it was very unstable.

In this report, NanoPiM 4 (ARM 64 bit, lubuntu 18.04), ARM 64 bit version system and OS version is 18.04, I feel that correspondence has not advanced yet.
(There are also some applications that can not be installed.)

Overview

Trouble with NanoPi M4 (lubuntu 18.04, 64 bit OS)

1. You can not switch languages.
(All necessary drivers for switching Kde - 10, installed language pack etc are installed)

Because PHD 2 and other languages ​​change, I think that it is a problem of Kstar & Ekos. (There was a similar problem with previous OSX version.)

2. The ZWO driver does not work.

It is confirmed with ASI120MC.
Here I confirmed with the driver of LinGuider, PHD 2, but that did not work at all.

Since the system is 18.04, ARM 64 bit version, optimization seems to be inferior to other environments.

I hope it will be fixed at the time of updating.

The fact that the ASI120MC doesn't work is not because of INDI (i.e. the dirver) but because the Linux kernel doesn't accept the USB packets sent by the camera. ASI themselves admit that this is an issue and recommend to upgrade the camera to ASI120MC-S, which is USB3 and fully functional on Windows, Linux and Mac.

Mr. wvreeven

ASI120MC had a problem at the initial stage of Unix type OS, but it is somewhat unstable, but at present it is operating in most environments.

For ARM type CPU, it is 16.04 and it operates with 32 bit OS.
(RPi 3, OrengePi)

With the INTEL type CPU, it can also operate on 16.04 and 64 bit systems.

I also own a MAC.
At first, we did not correspond, but now it works with the efforts of the development team.

ARM 64 bit system, 18.04 Seems to be causing problems.
(There was something that could not install other astronomical software as well.
I wrote the result I installed on the thread of Nanopi M4. )

Ubuntu of the ARM type seems to take time to stabilize.....