Hi there,
My laptop is thinkpad T400, FreeBSD 13.0 release upgraded from 12.2, default kernel.
Question as titled.
Following the instructions on this forum and other resources, I've tried to tweak config files to lower the power consumption. In /etc/rc.conf, these are added:
In /boot/loader.conf, these are added:
By running
It doesn't look right to me. What am I doing wrong or missing?
My laptop is thinkpad T400, FreeBSD 13.0 release upgraded from 12.2, default kernel.
Question as titled.
Following the instructions on this forum and other resources, I've tried to tweak config files to lower the power consumption. In /etc/rc.conf, these are added:
Code:
powerd_enable="YES"
powerd_flags="-a hiadaptive -b adaptive"
performance_cx_lowest="Cmax"
economy_cx_lowest="Cmax"
kld_list="acpi_ibm"
In /boot/loader.conf, these are added:
Code:
hw.pci.do_power_nodrive="3"
hint.p4tcc.0.disabled="1"
hint.acpi_throttle.0.disabled="1"
compat.linuxkpi.fastboot="1"
compat.linuxkpi.semaphores="1"
compat.linuxkpi.enable_rc6="7"
compat.linuxkpi.enable_dc="2"
compat.linuxkpi.enable_fbc="1"
Code:
% sysctl dev.cpu.{0,1}.cx_usage
dev.cpu.0.cx_usage: 100.00% 0.00% 0.00% last 1186us
dev.cpu.1.cx_usage: 100.00% 0.00% 0.00% last 887us
By running
% top
, I see 99.x% idle.It doesn't look right to me. What am I doing wrong or missing?