Solved laptop temperature

fernandel

fernandel

Hi!

I did some changes on Thinkpad T495 related to powerd and fan.
For fan I did:
Code: 
sysctl dev.acpi_ibm.0.fan=0
sysctl dev.acpi_ibm.0.fan_level=1
RPM is 2700 and works all the time.. Settings before were 1 for fan and 1 level.
And in /etc/rc.conf I have:
Code: 
powerd_enable="YES"
powerd_flags="-a adaptive -b adaptive"
performance_cx_lowest="Cmax"
economy_cx_lowest="Cmax"
Do I need to put fan settings in /etc/sysctl.conf or stay as I did? Should I change something related to powerd, please?
Thank you.
 
I would suggest that you instead of powerd uses Intel speedshift by adding to set machdep.hwpstate_pkg_ctrl=0 in /boot/loader.conf and using sysctl to adjust the values for dev.hwpstate_intel.%d.epp between 0 and 100 depending on the choice of performance vs efficiency desired. This is much more efficient than powerd on systems after skylake (at least on intel).

These values should be as you did suggest yourself in /etc/sysctl.conf
 
larshenrikoern said:
I would suggest that you instead of powerd uses Intel speedshift by adding to set machdep.hwpstate_pkg_ctrl=0 in /boot/loader.conf and using sysctl to adjust the values for dev.hwpstate_intel.%d.epp between 0 and 100 depending on the choice of performance vs efficiency desired. This is much more efficient than powerd on systems after skylake (at least on intel).

These values should be as you did suggest yourself in /etc/sysctl.conf
Click to expand...
Is this for Intel cpu? I have AMD.
 
They have something similar of-course. The equivalent AMD technologies are Cool'n'Quiet and PowerNow. I think the options are the same as on intel. Look in your bios setup to see what is enabled
 
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