Could be signing, if removing secure boot changed behaviour. The proprietary nvidia kernal module needs you to enroll the key in MOK interface at boot after an install or some updates.
You should have gotten a blue screen at boot that said options like, continue or enroll MOK, delete MOK, cancel, etc.





Hardware folder (synced via sync thing). All hardware PDFs, notes images etc get subfolders by manufacturer. It is helpful for keeping track of use manuals, firmware or config settings for each piece of hardware.