ACPI Problem: "acpi_tz0:_TMP value is absurd"

B J top_gun_canada at
Wed Mar 12 19:43:22 UTC 2008

I located a file for upgrading the BIOS for my Compaq
machine but it requires Windows to install it.  I
deleted the Windows that came with the machine several
months ago, so, for now, that option is out.

I created a file with the following commands:

sysctl hw.acpi.thermal.user_override=1
sysctl hw.acpi.thermal.polling_rate=1800
sysctl hw.acpi.thermal.user_override=0

and run it right after logging in as root using:

source xxxx

where xxxx is the file name.

The message:

acpi_tz0: _TMP value is absurd, ignored (-269.8C)

still appears, but not as often.  I could, of course,
adjust it later if temperature might become a problem
but, for now, the machine isn't on long enough for
that to be a concern.  It still doesn't fix the
problem of an incorrect temperature, but at least I
can read my monitor without it being cluttered with
those messages.


Never miss a thing.  Make Yahoo your home page.

More information about the freebsd-questions mailing list