David Brownlee <abs@NetBSD.org> writes:

> On Sat, 19 Nov 2005, Jared D. McNeill wrote:
>
>> On 17-Nov-05, at 6:32 AM, Steven M. Bellovin wrote:
>>
>>> In message <Pine.NEB.4.63.0511171439340.8510@angelic.cynic.net>,
>>> Curt Sampson w
>>> rites:
>>>> So, I finally made my choice and went out and got a Thinkpad T42.
>>>> It seems to be working fine so far, though I've not tried X11 yet.
>>>> However, I'm not at all familiar with any kind of power
>>>> management, and
>>>> I'm wondering what I should be using on this machine. Do I just start
>>>> apmd and powerd in rc.conf, and go with the manual pages from there?
>>>> Does anybody have any handy scripts or anything like that?
>>>>
>>> Use apm only.  Powerd requires ACPI, which (as far as I know) isn't
>>> really useful yet on laptops, since you can't do suspend/resume.
>>
>> For what it's worth, I had suspend/resume (ACPI S1 and S3) working
>> on my Dell Latitude D600. -current doesn't provide a way to trigger
>> a suspend, so here's the (old) patch I used:
>>
>> 	http://www.invisible.ca/~jmcneill/netbsd/d600/acpi-sleep-sysctl.patch
>>
>> You can trigger a sleep with 'sysctl -w hw.acpi.sleepstate=<n>'
>> where 'n' is the ACPI sleepstate (1, 3, 4, etc).
>>
>> There was a bug in the D600 firmware where resume would fail to
>> re-initialize the display adapter if it entered S3 while undocked,
>> but apart from that our ACPI suspend/resume code works
>> flawlessly. Hopefully others have better luck on different hardware.
>
>  	Would there be any sense in committing this as a (default
>  	undefined) option to make it easier for people to play with
>  	this stuff?

This causes a panic on my laptop, but since crashing a machine with
securelevel == 0 is easy with root access I see no problem committing
this.

-- 
Rui Paulo - rpaulo@fnop.net