Auto-logout of Grafana

[Gerynant24]

Hi there,
I really love this display, it gives you all you need to see and is very decorative.

But I have a problem with Auto-logout. After around 12 hours, the chromium returns to the Login page. Since this is a wall display with a Raspberry Pi3b & Grafana 6.5, it's a real problem for me and as a newbie I don't know how to solve it. I've seen references to a Grafana.ini file but there doesn't seem to be one on the Pi.
I've tried some cumbersome ways to resolve it, like programming Chromium to restart and daily reboots, but I end up crashing the Pi if I do that too often.

Is there a way to stop the auto log-out? Or a work-a-round to keep the graph showing?

Hope you can help me please.

[mihailescu2m]

You can try and connect from the raspberry pi to the grafana container:
docker exec -it grafana bash
then try to edit the grafana config file, adding something like:

login_maximum_inactive_lifetime_days = 365
token_rotation_interval_minutes = 525600

[Gerynant24]

I tried the command you suggested about, but I really am a bit of a novice with this, the command returned:
groups: cannot find name for group ID 1000
I have no name!@grafana:/usr/share/grafana$

I don't know where to find the grafana config file either, any additional help with be most useful please?