Psamathe

Display resolution is fixed in to 1920x1080 (full HD) so KStars and Ekos can fit to a screen. If you need to change it or you prefer to use hdmi connected display instead of remote display over VNC just select your resolution in /boot/config.txt - see the very last line: hdmi_mode=16. You don't need to do it if you use remote display because you can do local scaling, which will autofit display to your screen size (see Scaling option in left side popup menu in your browser).

I need to take a look at these problems with listing available wireless networks. Anyway as already discussed a few posts before:

Dear Radek,

Whilst in principle I am getting better using astroberry server and Ekos every day, I am increasingly having issues with the noVNC connection, either the screen turns black or I am getting an error message, see attachment. I could not yet find out, what the reason is (also tested detaching PiFace, checked powering and so on). Now I wanted to try disconnecting WLAN/wifi, maybe it interferes? But how can I do it? The command wlanconf is designed for establishing the connection, how can I remove?

Many thanks in advance,

Helge

You get this type of error if (for some reason) GPS panel or INDI webmanager is not ready while opening the main page. You can just refresh the main page and it will disappear. I will take a closer look at this in the next release.
There's no tool for removing added wireless networks. However you can remove them manually by editing /etc/wpa_supplicant/wpa_supplicant.conf (or removing the file if you want to forget all wireless networks).
And the last but not least - I noted that sometimes you get a black screen when accessing your desktop over noVNC. I'm not sure why it happends and I suspect it's related to Xauthority. When it happens restart your RPi (over ssh). Restart always fixes this issue... at least until it happens again. The good news is that is does not happen during consecutive connections during same session, so you can safely restart before kstars and ekos are started.

I have removed wlan settings as suggested (thanks a lot!), unfortunately, I did not help. I need to refresh the main page over and over again, or switch the RPi off and on until I am getting connected so I can start KStar/Ekos. The connection keeps dropping off. Strange, it was not like that as the beginning. System became hardly usable - luckily it is raining...

Should I reflash the es card?

You mentioned I should try "restart" via ssh, - I receive a reply that I need to specify what to restart. Can you tell me what exactly I need to type in PuTTy-terminal (which job)?

There are some strange things happening with your system. I would strongly recommend reflashing.
What I mean by "restart your RPi (over ssh)" is to start terminal and or connect to the RPi over ssh and run "sudo reboot" - this will safely reboot your device.
Beware that switching RPi off and on by just disconnecting power plug is not safe. It will for sure corrupt your filesystem. It's just like disconnecting power plug of your PC. What you need to do is to safe shutdown (ex. sudo poweroff) or safe reboot (ex. sudo reboot). You should never unplug power before safe shutdown.

Dear Radek,

With rebooting I usually manage to get the system running again, after a few attempts. I reflashed the sd card, but issue is persisting. Could it be that it has to do with the certificate? (I saved the certificate on my laptop, and confirmed exception, following a security alert). Not sure what else I can do.

Btw: focuser runs smoothly, see picture.

Best, Helge

Best, Helge

Hi Helge
What issue stays unresolved? Can you confirm you follow guidelines in readme file ?

Hm...I find it difficult to admit, but since I have run an update of the operating system, as suggested in the guideline (sudo apt-get update), now seems fine!

Is there a way for force RPI3 to update time right away?

Something has changed and it seems to take 5 minutes or so for the NTP server to grab the correct time.

Do you mean updating time from the Internet or from GPS?

Internet please.

Ideally the time is updated from Internet or I can do manually.

Manually would be done from a remote site. Or done with Kstars syncing computer to device time.

As already described in this thread the system time is synchronized with NTP. It works in two modes: (1) if you have Internet connection NTP gets time from public NTP servers, (2) if you don't have INternet connection NTP gets time from GPSD server (assuming you have a gps connected to your raspberry). If you don't have INternet connection and gps connected to your raspberry the only option is to set the time manually.
Now, where the time setting delay may come from? NTP does not set the time in one jump. Instead it sets the system time in a few jumps, chasing the actual time. I believe this is for consistency of many processes running on a system. To get it quicker you need to install ntpdate and run it once at system boot. It will set the time and leave little distance for NTP to chase the exact time.
Anyway I would advice to use GPS module with RTC (real time clock) or just RTC module so your raspberry keeps the date and time between reboots.