this post was submitted on 12 Jan 2026
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Set up SSH on it and make sure you're able to connect into it while it works normally, that way when the issue occurs you can do a quick test to see if the system itself is still up and running.
I'm not on Linux Mint / Cinnamon but I've occasionally seen GNOME sort of hang/freeze so the screen display becomes non-responsive. After a couple of times of that happening I ended up setting up SSH on the system and configured a SSH client on my phone so I can do a SSH connection into the desktop and force-logout my user (which apparently fixes the issue and brings my main desktop back to a normal login screen). I haven't quite figured out if it's Gnome issues or something to do with my Nvidia GPU.. though with Linux if Nvidia is involved then it's usually Nvidia, ugh.
Also if you're physically at the computer when it happens try unplugging/replugging in the monitor cable, maybe there's something wonky going on there or with the display connection.
Just some ideas to help you along :)