Hardware

Replace cartridge: Open access to printer, press stop 5 seconds and repeat. You don't need to replace the cartridge, you can clean it carefully with some soft tissue.
Youtube: How to remove the print head

This might be useful when your machine shuts down unexpectadly under heavy loads: https://github.com/FlyGoat/RyzenAdj

For me it only happens in Windows when the batery is charging too. I think charging thresholds are a must. In linux we have tlp: https://linrunner.de/tlp/ and https://wiki.archlinux.org/index.php/TLP and https://github.com/linrunner/TLP :-D

I have an old external seagate ssd 2TB for backup called "BUP Slim BL". It was a challenge to enable the SMART capability on Ubuntu 20.10.

You might give this a go: sudo smartctl -d sat -T permissive --smart=on /dev/sda1

If that does not work, you might need:

echo options usb-storage quirks=$(lsusb | awk '/Seagate/ {print $6}'):u | sudo tee -a /etc/modprobe.d/ignore_uas.conf
sudo update-initramfs -u

The screen started flickering and the quick fix is to push down just above the keyboard in the middle and then the flickering stops. Looks like a loose connection of the cable connecting the screen with the motherboard.

Lenovo IdeaPad G580 Laptop Screen Replacement Procedure: https://www.youtube.com/watch?v=smGMmZzm9bc

Lenovo G580 Laptop Disassembly video, take a part, how to open: https://www.youtube.com/watch?v=84lV68WRKlQ