Hi Radek,
thanks for the information about .xz-format. Either I forgot about it or did not realize any more that it exists
I did not enhance the usage of zRam. My Pi uses now ~380 from 860MB Ram using Kstars and Ekos. But I have to add, that
I increased the avaiable ram toward more graphics ram from 64 to 128MB which is recommended for RealVNC and should apply to VNC as well. This can be don done via
sudo raspi config
Advanced Options -> Memory Split
I encounter now a much more responsible screen. I tried also Real-VNC (it IS a better product, than the standard vnc server), but I had severe problems with multiple startups of 'Xnvc-core' instances which I could not resolve (and cannot due to high work volume) - they ate up all volume.
Then I
disabled the automatic update check (apt-check) which costs a lot of memory and speed. The Pi was almost not usable at startup.
sudo nano /etc/apt/apt.conf.d/10periodic
APT::Periodic::Update-Package-Lists "0";
APT::Periodic::Download-Upgradeable-Packages "0";
APT::Periodic::AutocleanInterval "0";
APT::Periodic::Unattended-Upgrade "0";
Next is probably not necessary due to the altering of the file before:
sudo nano /etc/apt/apt.conf
APT::Periodic::Update-Package-Lists "0";removed apparmor and conky
APT::Periodic::Unattended-Upgrade "0";
This next should be done, it creates a special startup file for the astroberry user to disable the autostart of the update-notifier:
mkdir -p ~/.config/autostart
cp /etc/xdg/autostart/update-notifier.desktop ~/.config/autostart
nano ~/.config/autostart/update-notifier.desktop
[...]
X-GNOME-Autostart-enabled=false
[...]
I also
removed apparmor and conky completetly - they only make trouble / cost ram:
sudo apt-get remove conky* apparmor
When I will get Real-VNC running I am happy
Greets from a really nice place on the landside near Berlin hanging out with my astro-friends
I will keep this particualar
post #24176
updated when I add more successful changes.
Axel