waking up from zzz(8)

[Nate Lawson]

On Tue, 4 May 2004, Mikhail Teterin wrote:
> =Use a serial console. Sounds like your system is waking up but not
> =fully. The screen may be helped by loading acpi_video.
>
> I don't think, there is a serial port on this laptop. It has a built-in
> "soft-modem", but no free serial port.
>
> I loaded the acpi_video:
>
> 	hw.acpi.video.crt0.active: 0
> 	hw.acpi.video.tv0.active: 0
> 	hw.acpi.video.out0.active: 0
> 	hw.acpi.video.out1.active: 1
>
> and will try to zzz again tonight.
>
> Should I be concerned about any of these values, though:
>
> 	hw.acpi.supported_sleep_state: S3 S4 S5	<-- No S1?

Nothing surprising here.  Few systems have S1.

> 	hw.acpi.power_button_state: S5
> 	hw.acpi.lid_switch_state: S1
> 	hw.acpi.standby_state: S1
> 	hw.acpi.reset_video: 1
> 	hw.acpi.disable_on_poweroff: 1

I should make these default to min(hw.acpi.supported_sleep_state) instead
of just S1.  But no problems here either.  You can try setting
hw.acpi.reset_video=0 to see if it helps your screen resume.  Check out
the ACPI section from the FreeBSD handbook.  Some people put a lot of
effort into documenting things and it seems that no one has read it.

-Nate