Translator:
I have saved option 1920x1080p 60, but sometimes after restart/reboot, Kodi chooses a very low resolution (720x480 or something similar) not supported by my TV.
I've tried this:
https://kodi.wiki/view/raspberry_pi_faq#tv_is_not_detected_unless_powered_on_first
but it did not help.
RPi3, Kodi 18.2, LibreELEC 9.0.2
EDIT
I returned to the previous version: 17.6, LibreELEC 8.2.5. In this version everything (resolution and Rii mini i8) works as it should.