I think Mint uses systemd, so after rebooting, you should be able to review the system log from the previous boot with this command:
journalctl --boot=-1
The kernel might still be running even when the display is frozen. If that’s the case, you can try rebooting more gently than a forced power-off would do. While holding down the Alt key, type these keys in order, with a couple seconds between each tap: SysRq R E I S U B
https://en.wikipedia.org/wiki/Magic_SysRq_key
Note: SysRq is disabled by default on some distros, and unsupported by some keyboard controllers. You can check (when the system is not frozen) by holding Alt and typing SysRq H while watching the output of sudo dmesg --follow. If it’s working, you should see a help message.
For what it’s worth, what you’re describing sounds like it might be a GPU driver misbehaving, perhaps in response to power saving events. If you have an Nvidia card, you might try a different driver version. Otherwise, you might try an older or newer kernel version.































Not to be confused with the MMO ganker hell that also has Albion in its title.