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Re: acpi resume on dell d810
On Thu, Mar 18, 2010 at 03:21:44PM +0100, fulvio ciriaco wrote:
> I own a Dell Latitude D810 with NetBSD 5.0.2 (GENERIC) installed.
> zzz sends the laptop to sleep but pressing the power button does not resume
> the computing state, it boots the laptop instead.
Generally, the apm(8) is a legacy interface and it is better to use acpi(4)
directly for anything manufactured in the 2000s. Unfortunately the
documentation is badly behind the current state of affairs.
General steps to test the suspend/resume:
1. Boot into single user mode (see boothowto(9)).
2. Issue 'sysctl -w machdep.sleep_state=3'.
3. Cross your fingers.
The acpi(4) manual page describes 'machdep.acpi_vbios_reset' -sysctl
variable that might have something to do with the reboot when resuming. As a
first step you could try different values for this variable.
 Cf. the outdated http://netbsd.org/docs/power-mgmt/index.html
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