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: this

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.

1 Answer 1


I found this guide. I was able to boot turning off ACPI by adding the acpi=off flag in grub.

Then I followed the guide above and was able to boot without acpi=off:

  1. If using sysdemd with rc.local disabled:

    systemctl enable rc-local.service
  2. Edit

    sudo systemctl edit --full rc-local
  3. Add to rc.local

    echo "disable" > /sys/firmware/acpi/interrupts/gpe6F

There were still a few of the ACPI error messages, but they did not affect booting.

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