On Sat, 2008-11-29 at 14:04 +0100, Tore Anderson wrote: > Many settings are not adjusted when (dis)connecting mains: > - /proc/sys/vm/laptop_mode > - /sys/class/scsi_host/host*/link_power_management_policy > - /sys/class/net/wlan0/device/tx_power > - Hard drive APM (hdparm -B) > - Various tricks to prevent waking hard drive too often: > - Increasing dirty_writeback_centisecs and readahead > - Remounting file systems with -o relatime Most of this control belongs in the kernel, and then in userspace we use something like PMQoS to set a system latency. This is what I'm pushing for in F11. See http://blogs.gnome.org/hughsie/2008/11/09/gnome-power-manager-and-devicekit-power/ and http://blogs.gnome.org/hughsie/2008/11/06/devicekit-power-latency-control/ Laptop tools and power.d are userspace hacks that need to go away. I don't think making the user aware of power settings is a useful thing to do. I also don't think we should waste power when on AC -- we should do aggressive power saving even when on AC power as long as this does not affect desired system latency. Richard. -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
