Re: et sinon, l'underclocking, c'est un truc de vieux

Pourtant dans le noyau, dans Device Drivers, il y a une rubrique Voltage and Current Regulator support :

CONFIG_REGULATOR:
Generic Voltage and Current Regulator support.
This framework is designed to provide a generic interface to voltage
and current regulators within the Linux kernel. It's intended to
provide voltage and current control to client or consumer drivers and
also provide status information to user space applications through a
sysfs interface.
The intention is to allow systems to dynamically control regulator
output in order to save power and prolong battery life. This applies
to both voltage regulators (where voltage output is controllable) and
current sinks (where current output is controllable).
This framework safely compiles out if not selected so that client
drivers can still be used in systems with no software controllable
regulators.
If unsure, say no.
--- Voltage and Current Regulator Support
[ ] Regulator debug support (NEW)
[ ] Provide a dummy regulator if regulator lookups fail (NEW)
< > Fixed voltage regulator support (NEW)
< > Virtual regulator consumer support (NEW)
< > Userspace regulator consumer support (NEW)
< > Analog Devices AD5398/AD5821 regulators (NEW)
< > Fairchild FAN53555 Regulator (NEW)
< > Intersil ISL6271A Power regulator (NEW)
< > Maxim 1586/1587 voltage regulator (NEW)
< > Maxim 8649 voltage regulator (NEW)
< > Maxim 8660/8661 voltage regulator (NEW)
< > Maxim MAX8952 Power Management IC (NEW)
< > Maxim MAX8973 voltage regulator (NEW)
< > National Semiconductors LP3971 PMIC regulator driver (NEW)
< > National Semiconductors LP3972 PMIC regulator driver (NEW)
[ ] TI/National Semiconductor LP8720/LP8725 voltage regulators (NEW)
< > TI LP8755 High Performance PMU driver (NEW)
< > TI TPS51632 Power Regulator (NEW)
< > TI TPS6236x Power Regulator (NEW)
< > TI TPS65023 Power regulators (NEW)
< > TI TPS6507X Power regulators (NEW)

On doit donc pouvoir faire quelque chose avec tout ça.