Re: Who's playing with scaling_max_freq?

[humbert.olivier.1@free.fr]

You might need to relaunch :
invoke-rc.d cpufrequtils restart
or maybe :
/etc/init.d/cpufrequtils restart

or something around this (at the top of my head).
Hope that helps.
Olivier

----- Mail original -----
De: "Stefan Monnier" <monnier@iro.umontreal.ca>
À: debian-user@lists.debian.org
Envoyé: Mercredi 27 Avril 2016 02:50:13
Objet: Who's playing with scaling_max_freq?

Max scaling_max_freq seems stuck at 1GHz even though it should be able
to go up to 1.83GHz.

    # echo 1833000 >/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq; cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
    1000000
    # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 
    1833000 1333000 1000000 
    #

This is on a Thinkpad T60 running Debian stable.  Any idea what might be
causing this?  Or at least, which part of the system might cause
scaling_max_freq to be (re)set to 1GHz right after I force-set it to 1.83GHz?
Would it be some daemon like systemd or rather than kernel?

This Thinkpad T60 is actually used as a desktop: it's parked in a dock
(with the lid is closed) where I have it connected to a keyboard and monitor.


        Stefan