Baldurs Gate 3. Seemed expensive, complicated, and not my type of game at the time.Oh, how wrong I was.
Your EC is on the latest version, I don’t think it changed at allThe ISOs should be identical to fwupdmgr. They might also need Windows.
https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-t580-type-20l9-20la/downloads/ds502394-bios-update-utility-bootable-cd-for-windows-10-64-bit-linux-thinkpad-p52s-t580?category=BIOS%2FUEFI
run tlp recalibrate? Rolling back firmware probably doesn’t help because it might not be reverting the EC firmware, which is used with the battery btw battery information is in /sys/class/power_supply/BAT* if you want to check the raw values It might also help if you report the BIOS and EC versions you see in the BIOS setup.
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