https://bugzilla.kernel.org/show_bug.cgi?id=201539
--- Comment #47 from muncrief (rmuncrief@humanavance.com) --- (In reply to Jan Ziak (http://atom-symbol.net) from comment #46)
There is also the possibility to use question marks in the path:
/sys/class/drm/card?/device/hwmon/hwmon?
Thank you for mentioning that. If you only have one GPU that will indeed work. I have multiple GPUs, one Nvidia and one AMD, so I have to hard-code the card.