acpidump

The Environment: Dell Latitude E5420 laptop, from 2011, latest BIOS (A14), 8gb RAM, Intel Core i5-2430M processor FreeBSD AMD64 RELEASE 14.0-p4, standard kernel. The Issue: The following message appears at boot: ACPI: \134_SB.AMW0.WQMO: 1 arguments were passed to a non-method ACPI object...

On my ThinkCentre everything works without issues, until the temperature goes over ~60° Then, CPU fan stops for couple of seconds and starts blowing at full speed. While temperature is decreasing (down to under 40°) fans continue to blow and after 2-4 minutes computer hangs and only hard reboot...

Hi, How could I try and debug, and hopefully fix, the ACPI tables dumped by acpidump? If I run acpidump -t, I get: ... Type=INT Override BUS=0 IRQ=9 INTR=9 Flags={Polarity=active-lo, Trigger=level} */ acpidump: RSDT entry 21 (sig SSDT) is corrupt /*...

I fixed an ACPI problem with an old motherboard. Here, I document the steps I used to repair it: Trying FreeBSD 12.0 on an old Pentium 4 machine, with Intel D915GAV motherboard, latest BIOS version. Everything seems to be working OK except that I have an ACPI error report in dmesg on boot...