Hi:
I see some 15 degrees of difference of CPU temperature between FreeBSD9 and Debian GNU/Linux with the same hardware (Toshiba Satellite C650d).
GNU/Linux usually shows (with cpufreq utils) 40-50 degrees celsius whereas FreeBSD9 shows at least 54-63 degrees of celsius when starting up. At this point of writing it is showing 55.5 degrees celsius.
The CPU is with amdtemp enabled:
Added to /boot/loader.conf, the following:
/etc/rc.conf has:
What else can I do or where do I look up further to bring down the temperature? I feel thermal management is pretty important in any OS (both for lengthening the life of physical hardware and green technology).
Update: Tried with loading acpi_toshiba kernel module, neither it brings down the temperature nor it allows the toshiba keyboard combinations (with Fn + Fx where x is 1-12) works as stated in the acpi_toshiba(4) man pages!
I see some 15 degrees of difference of CPU temperature between FreeBSD9 and Debian GNU/Linux with the same hardware (Toshiba Satellite C650d).
GNU/Linux usually shows (with cpufreq utils) 40-50 degrees celsius whereas FreeBSD9 shows at least 54-63 degrees of celsius when starting up. At this point of writing it is showing 55.5 degrees celsius.
The CPU is with amdtemp enabled:
Code:
# dmesg | grep CPU
CPU: AMD Athlon(tm) II P320 Dual-Core Processor (2094.87-MHz K8-class CPU)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
SMP: AP CPU #1 Launched!
amdtemp0: <AMD CPU On-Die Thermal Sensors> on hostb4
Added to /boot/loader.conf, the following:
Code:
#for laptop power manangement
amdtemp_load="YES"
hint.p4tcc.0.disabled=1
hint.acpi_throttle.0.disabled=1
#for reduction of power by sound device
hint.pcm.0.buffersize=65536
hint.pcm.1.buffersize=65536
hw.snd.feeder_buffersize=65536
hw.snd.latency=7
/etc/rc.conf has:
Code:
#for laptop power management
powerd_enable="YES"
powerd_flags="-i 85 -r 60 -p 100"
performance_cx_lowest="C2"
economy_cx_lowest="C2"
What else can I do or where do I look up further to bring down the temperature? I feel thermal management is pretty important in any OS (both for lengthening the life of physical hardware and green technology).
Update: Tried with loading acpi_toshiba kernel module, neither it brings down the temperature nor it allows the toshiba keyboard combinations (with Fn + Fx where x is 1-12) works as stated in the acpi_toshiba(4) man pages!