Hi listers
here is a laptop with
[root@myhost ~]# cat /etc/fedora-release
Fedora release 7 (Moonshine)
[root@myhost ~]#
worked well until 10 days ago. then, the laptop started its fan, and
drove down its cpuspeed to about a quarter of the speed before. if i run
the system-monitor, the cpu is busy always about 30 %, whereas before it
was busy only about 6 %.
The fan from then on is never stopped and the CPU stays low in
performance from then on. i have to do a power down (either pm-hibernate
or halt/reboot) in order to make it come up with the "full" performance
and stay there for a while. after that, the fan starts again and the cpu
slows down.
after some googling i tried the following:
[root@myhost ~]# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
997500
[root@myhost ~]# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
731500
[root@myhost ~]# echo "997500"
>/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
[root@myhost ~]# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
997500
[root@myhost ~]#
i also changed the parameters of the cpuspeed program, so that now it
comes up with:
1413 ? Ss 0:01 cpuspeed -d -p 90 45 -m 731500 -M 997500 -n
all to no avail.
i also checked to see, whether in the BIOS the intelCPUstepping is
enabled, and it is enabled.
i understand, that the fan at a certain point in time starts turning.
but i don't understand, why at the same time, the cpu slows down.
has anyone got an idea, where this immediate change stems from and how i
could stop it?
thanks in advance for any reply
suomi
