I'm working on Ubuntu 20.04 with Cinnamon 4.4.8 desktop. Some time ago I started to have issues with my displays: they either aren't detected or the layout is reset to default one. I tried to access display manager from settings from terminal. This is the output after selecting display manager:

cinnamon-settings True Using pam module (python3-pampy) Loading Display module ** CinnamonDesktop:ERROR:../libcinnamon-desktop/gnome-rr-config.c:666:gnome_rr_config_load_current: assertion failed: (gnome_rr_config_match (config, config)) Bail out! CinnamonDesktop:ERROR:../libcinnamon-desktop/gnome-rr-config.c:666:gnome_rr_config_load_current: assertion failed: (gnome_rr_config_match (config, config)) Aborted (core dumped)

Any hints how to fix it?

1

1 Answer

I needed to reinstall desktop environment. sudo apt-get install --reinstall cinnamon

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