I just did a system update and upgrade on my Arch desktop. Just after getting past GRUB, I get this scrolling on the screen forever:
ACPI Exception: AE_NOT_FOUND, while evaluating GPE method [_L6F]...
ACPI Error: [PGRT]_Namespace lookup failure, AE_NOT_FOUND...
ACPI Error: Method parse/execution failed [\_GPE._L6F]...
What's going on? I found http://jhshi.me/2015/11/14/acpi-error-method-parseexecution-failed-_gpe_l6f/index.html and tried to implement it from my LiveUSB, but it didn't work.