Re: Some powerd(8) defaults

[Marc Balmer <mbalmer%NetBSD.org@localhost>]

Am 06.05.11 13:38, schrieb Jukka Ruohonen:
> Hello.
> 
> Here are some proposed changes to the powerd(8) scripts which I find good
> enough to be enabled by default. Also other suggestions are welcomed.
> 
>   1. Provide a generic "sleep" script and link the current "sleep_button"
>      and "lid_switch" to it appropriately. This means that the default action
>      upon closing the laptop lid changes to "suspend". By default, we already
>      resume (in-kernel) automatically when the lid is opened.
> 
>   2. By default, stop/start the cron(8) deamon upon changes in the AC adapter.
>      This behavior is already in the script, but it was commented out.

Please don't fiddle with cron(8).  It should run all the time,
regardless of the adapter.

> 
>   3. New laptops are notoriously bad at thermal management. Currently NetBSD
>      lacks a well-defined thermal management interface, but the least we could
>      do is to gracefully shutdown the system when "sensor_temperature" is
>      called with "critical" or "critical-over" events. This has saved my
>      ThinkPad many times from the CPU's forceful shutdown detector.
> 
>   4. Before the "low-power" event is called in "sensor_battery", use wall(1)
>      to display a warning during the earlier event. This was requested by
>      jakllsch@ and jmcneill@.
> 
>   5. Even though NetBSD also lacks an uniform interface to control the
>      display brightness levels, use the acpivga(4)'s sysctls (and possibly
>      other MD sysctls) to set the brightness to, say, 75 % when the AC
>      adapter is disconnected, and set it back to 100 % when the power cord
>      is again plugged.

The rest sounds more or less sane, modula what Joerg already mentioned
(config file)