Antonello Cruz wrote: > Mark Haywood wrote: >> Antonello Cruz wrote: >>> Aubrey Li wrote: >>>> On Tue, Apr 28, 2009 at 3:05 AM, Henrik Johansson >>>> <henrikj at henkis.net> wrote: >>>>> >>>>> My power management works fine when I first boot my Lenovo T61, >>>>> but after >>>>> putting it into suspend mode it will always run on the highest >>>>> frequency. >>> I see the same behavior with a Dell XPS 1330M >>> I've notice that if I disconnect the power adapter and then >>> reconnect, it goes to a more same behavior. >> So that I can do some investigation ... I assume you are running >> CPUPM in poll-mode? > That's right, I've attached my power.conf file > > > Since I cannot type (apparently) here is what happens: > If I suspend/resume, after resume powertop report max P-state > (2001Mhz(turbo) 100%) and it seems the system is stuck at that cpu > frequency. This is confirmed with > kstat -m cpu_info -s current_clock_Hz > > If I unplug the power supply, the cpu frequency drops to 800MHz. When > I plug the power supply back in, the frequency goes up to 2001Mhz and > gradually goes down to 800MHz again. Frequencies in all steps are > confirmed with > kstat -m cpu_info -s current_clock_Hz
Folks really ought to use powertop instead of the current_clock_Hz kstat now. Unfortunately, I think current_clock_Hz will be a confusing kstat now that PAD has integrated. You might still see that you are not leaving the 2001MHz P-state, but I would verify with /usr/bin/powertop. Thanks, Mark > > > Antonello > ------------------------------------------------------------------------ > > _______________________________________________ > pm-discuss mailing list > pm-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/pm-discuss
