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SubjectRe: halt does not shut the system down
Dick Johnson wrote:

> John Sigler wrote:
>
>> http://bugzilla.kernel.org/show_bug.cgi?id=9148
>>
>> Writing 15361 (i.e. 0x3C01) to ACPI_REGISTER_PM1A_CONTROL appears to
>> hang my system in acpi_os_write_port(). What can I do about that?
>>
>> Another observation: if I connect a screen to the system's VGA port,
>> when I call 'poweroff' the screen goes into power saving mode. This
>> seems to indicate that the integrated video card is properly shut down.
>>
>> So the fans keep spinning, the LEDs keep shining, the LCD keeps
>> displaying, but the video card is shut down?
>>
>> Might this help pinpoint the problem?
>
> Check the BIOS to see if the "Power Button" is configured to
> shut the system down. Some BIOS configure APM to do what
> the power button does!

Here is the relevant BIOS menu.

Phoenix - AwardBIOS CMOS Setup Utility
Power Management Setup
+=====================================================+
| ACPI Function [Enabled] |
| MODEM Use IRQ [NA] |
| Soft-Off by PWR-BTTN [Instant-Off] |
| CPU THRM-Throttling [50.0%] |
| Resume by Alarm [Disabled] |
| x Date(of Month) Alarm 0 |
| x Time(hh:mm:ss) Alarm 0 : 0 : 0 |
| |
| ** Reload Global Timer Events ** |
| Primary IDE 0 [Disabled] |
| Primary IDE 1 [Disabled] |
| Secondary IDE 0 [Disabled] |
| Secondary IDE 1 [Disabled] |
| FDD,COM,LPT Port [Disabled] |
| PCI PIRQ[A-D]# [Disabled] |
| |
+=====================================================+

+===================================+
| Soft-Off by PWR-BTTN |
|-----------------------------------|
| Instant-Off ..... [v] |
| Delay 4 Sec. ..... [ ] |
| |
|-----------------------------------|
| ^V:Move ENTER:Accept ESC:Abort |
+===================================+

'Instant-Off' is the appropriate setting, right?

In a different menu, there are two other (relevant?) options:

PWRON After PWR-Fail [On]
Watch Dog Timer Select [Disabled]

Regards.
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