[gentoo-user] re: a couple of power management questions

[gentoo-user] re: a couple of power management questions

[Alexander Kapshuk]

I've been setting up power management on my HP compaq laptop using this
article, http://www.gentoo.org/doc/en/power-management-guide.xml, as a
reference.

Just a couple of questions I thought I'd ask.

(1). CONFIG_ACPI_VIDEO seems to be missing in the 3.10.17-gentoo kernel,
but is available in 3.10.7-r1.
for f in /usr/src/*/.config; do echo $f; grep CONFIG_ACPI_VIDEO $f ||
echo $?; done
/usr/src/linux-3.10.17-gentoo/.config
1
/usr/src/linux-3.10.7-gentoo-r1/.config
CONFIG_ACPI_VIDEO=y
/usr/src/linux/.config
1

(2). I've got my current kernel set up to use the 'userspace' governor
by default.

grep ^CONFIG_CPU_FREQ_DEFAULT_GOV .config
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y

The settings below were set to use 'ondemand' by default, so I changed
them to 'userspace' to correspond to the kernel setting above. Is that
right, or should I have left it set to the original value, or set it to
something else?

/etc/laptop-mode/conf.d/cpufreq.conf
s/ondemand/userspace/
LM_AC_CPU_GOVERNOR=userspace
s/ondemand/userspace/
NOLM_AC_CPU_GOVERNOR=userspace

Thanks.