ACPI on Tyan Motherboard
User Takawata
takawata at axe-inc.co.jp
Mon Aug 18 20:14:08 PDT 2003
In message <3F4187B4.9020504 at math.missouri.edu>, Stephen Montgomery-Smith wrote
:
>I have a Tyan S2462 Thunder K7 motherboard. I was hoping to get power-down to
>work. So I installed FreeBSD current with ACPI enabled. When I typed "shutdo
>wn
>-p now" the computer halted, and then the video card switched off, and the fan
>s
>kept running. The computer was frozen - even the power-off power-on button
>wouldn't work.
>
>Actually the power-off button doesn't work at all under FreeBSD-current. (It
>is
>a soft power-off button that dmesg shows is detected by the OS.)
>
>I should add that power-down works great with Windows 2000. Also, the power-o
>ff
>button works properly with FreeBSD-stable.
>
>I am thinking that maybe I need to wait a few more months until ACPI is fully
>debugged. On the other hand, maybe you guys would like to work on this. I ca
>n
>send all info like dmesg, and the kernel configuration (which is basically
>GENERIC with stuff removed, and SMP and pcm added, but actually it didn't work
>
>with the generic kernel either.)
>
>Is it possible that power is cut to the CPU's, but not to the fans? Is there
>anyway to tell?
>
>Will I have to "program" the ACPI (that is take the output of acpidump and edi
>t it)?
>
>It does seem to me that ACPI is working in some form, just not properly. If I
>
>boot up with ACPI disabled, then it works just as in FreeBSD-stable, that is,
>the power-off button works well.
Try
# sysctl hw.acpi.disable_on_poweroff=0
More information about the freebsd-current
mailing list