I’m having an issue in linux mint 22.3 cinnamon where the GUI locks up but audio still plays and the mouse cursor still moves. The solution is to press ctrl+alt+f1 to take me to a terminal and then press ctrl+alt+f7 to go back to the GUI. Then everything works fine. Forgive me, I do not know what to call the terminal when accessing ctrl+alt+f1 other than tty1.
I also have an issue where when using a browser (librewolf / waterfox / zen) and using the pop out video window, sometimes over time it will lock in the main browser window and the solution is to minimise and restore the window. Sounds related.
I am new to linux and not sure where to start. I think there is something up with the cinnamon desktop environment but I do not know what. Hardware has been stress tested, multiple components, multiple days. I think it is a software issue but could be wrong, that is why I am asking for help.
Any help / thoughts much appreciated.
Thank you.


In addition to the info throwaway403 provided, the practical step you need to know is - at the login screen you can choose between wayland and x11 (although most people never notice the option),
reboot your machine, or just logout
on the standard version 22 cinnamon login screen you should see a little picture of a mountain in a circle click on that and it will give you a couple of options (cinnamon default, cinnamon software rendering, cinnamon on wayland)
choose one of the three you’re not currently using and then login
Try the other options if that doesn’t fix it. If none of them fix it then it prob isnt an X11/wayland issue
Note where you choose the x11 vs wayland changes depending on which display manager you’re using and whether you’ve installed any themes - so if it doesn’t look as described then click on stuff on the login screen until you find it - the only other things will be accessibility options and virtual keyboards unless you’ve installed something really left field
I have kept customisations to a minimum, I shall look into performing what you describe once I have confirmed I have appropriate backups, images and timeshift backups in place. I am nervous of changing anything related to the GUI as I do not want to end up in a situation where I am just booting into a terminal.
Thank you for you help, it has been most illuminating.