DaemonForums  

Go Back   DaemonForums > OpenBSD > OpenBSD General

OpenBSD General Other questions regarding OpenBSD which do not fit in any of the categories below.

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1   (View Single Post)  
Old 23rd November 2010
MihaiM MihaiM is offline
New User
 
Join Date: Nov 2010
Posts: 3
Thanked 0 Times in 0 Posts
Default CPU power saving done correctly

Hey! I installed OpenBSD 4.8 on my laptop (Asus K50AB) and among the things I'm interested in is this power saving feature. I did not manage to make it work but before reporting to the devs, I'd like to know if I've done everything correctly, because I have no idea whether my hardware is not supported (yet) and it should not work or I missed something from the documentation (and web discussions).

So, I understand that all I need to do is to configure the apmd_flags option in rc.conf, which I set to "-C" (economic). Other than that, I disabled the daemon and tried to lower hw.setperf manually. Nothing worked (checked the cpu frequency with $ apm), as far as I understand, I should have seen an apm* device in dmesg.

My questions are:
- based on this information, is my hardware power-saving unsupported by the system?
- could I try something else that might work? (like enabling some option at boot time, building a custom configured kernel - with something like "asus acpi", changing a certain sysconfig option or enabling something like hal)

Notes:
- if this tells you something, I used to set this option on FreeBSD, months ago, for CPU frequency scaling to work: hint.acpi_throttle.0.disabled="1". It worked without touching it in one version but not in a newer one (I forgot the numbers, I think 8.0 release was working and stable was broken, needing that tweak).
- I did not yet tried to check for the availability of the following option in config, which I just found while I'm not on obsd: acpiasus. I have the feeling that this is not the trick, though.
Reply With Quote
 

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Saving automatically downloaded binary packages IdOp NetBSD Package System (pkgsrc) 6 23rd November 2009 06:00 PM
startx not starting correctly - XOrg 7.4_2 Mantazz FreeBSD Ports and Packages 1 8th July 2009 04:17 PM
VNC not viewing correctly disappearedng FreeBSD General 6 30th August 2008 05:03 PM
Firefox profile not saving tonywob FreeBSD General 4 20th May 2008 12:20 PM


All times are GMT. The time now is 11:41 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content copyright © 2007-2010, the authors
Daemon image copyright ©1988, Marshall Kirk McKusick