On Fri, Jan 27, 2012 at 7:55 PM, Genes MailLists <lists@xxxxxxxxxxxx> wrote: > On 01/27/2012 01:40 PM, Tom Gundersen wrote: > > Welcome! > > Thank you! > > > > >> (2) One smallish potential problem zone on laptop is the new power > >> applet - profiles are gone and it is no longer possible to choose a > >> 'powersave' vs 'performance' via a toggle. > > > > This seems to be working as intended > > (http://www.kde.org/announcements/4.8/plasma.php), so nothing that we > > should do anything about (if you think it should change it should be > > taken up with upstream). > > Agreed completely - was just making a comment ... > > > > > That's an annoying bug (both with CLI and with GUI workarounds imho). > > If you know where in the stack the problem is > > I need to work on it to track it down further and confirm it is still > happening with current kernel/plasma et al - in the past it has taken a > couple of sleep/wake cycles to trigger ... > > > (plasma/solid/upower/kernel), please file bug upstream. If not, file a > > bug at bugs.archlinux.org and we'll try to figure it out :) > > > >> There is a toggle to 'turn off power management - useful for > >> presentations on battery I suppose ... tho when I tried it earlier on > >> battery it did not seem to restore performance mode for me ... I need to > >> investigate that further tho'. > > > > If it persists, please file bug :-) > > > > Will do ... > > > gene > > > > Hello Gene, I have a W520 too and I can share what I did for power management in KDE: - first of all, I suggest you to install tlp [1] from aur - I wrote a little bash script [2] to set cpufreq's governor and lcd's brightness, located in /root/governor.sh - enabled wheel group to use it without password with the following in sudoers: %wheel ALL=(ALL) NOPASSWD: SETENV: /root/governor.sh - in KDE's systemsettings -> power management, I enabled "run script" on profile load, with the following settings: AC profile -> "sudo /root/governor.sh ac" BATTERY profile -> "sudo /root/governor.sh bat" using these settings my laptop correctly switches profile on AC->BAT (and viceversa) events Cheers, Morris [1] - https://aur.archlinux.org/packages.php?ID=48464 [2] - http://pastie.org/3268259
