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" <monn...@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