cpu temp after formatting

[rudra-b]

Dear friends,
few days back, I had to reinstall f11. Now i am facing one problem that the temperature is increasing to very high.

$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +58.0°C (high = +85.0°C, crit = +85.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Core 1: +66.0°C (high = +85.0°C, crit = +85.0°C)

i have no clue why this is so, while just before the reinstallation, it was about 40-48 etc.
what to do? I am attaching the firstbootX.log(as pdf)

[Gödel]

run 'top' and see if anything has high cpu usgae

[rudra-b]

nop...this is not the case!!i m nt idiot enough to run high cpu jobs and complain abt temp increase.

Is there any possibility of problematic installation?

[Gödel]

Well we do get them here you know

Add the cpu frequency scaling applet to gnome panel and see if the scaling is adjusting "On Demand", and not set to "Performance" or max frequency, if not click the applet and adjust it.

The only thing that could affect cpu temps is high load or a faulty/dusty cpu fan, I doubt the latter would have changed after a F12 install.

Of course, there's always the possibility that the sensor software is doing something different or has a bug in F12, but I haven't noticed it myself on a core 2 duo.

[rudra-b]

basic prblem is it was all ok before re-installation of f11.
may there be any fault in installation itself? should i try to install again?

[Gödel]

Have you checked the cpu frequency? Scaling might have been disabled after the update:

watch -n1 grep MHz /proc/cpuinfo

Does your cpu support frequency scaling, what's the output of 'cat /proc/cpuinfo' and 'lsmod | grep cpu'?

[rudra-b]

These are the output

$watch -n1 grep MHz /proc/cpuinfo
Every 1.0s: grep MHz /proc/cpuinfo Wed Dec 9 22:14:45 2009

cpu MHz : 800.000
cpu MHz : 800.000

$ lsmod | grep cpu
cpufreq_ondemand 6344 2
acpi_cpufreq 8864 0

$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU T5800 @ 2.00GHz
stepping : 13
cpu MHz : 800.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm
bogomips : 3989.82
clflush size : 64
power management:

processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 Duo CPU T5800 @ 2.00GHz
stepping : 13
cpu MHz : 800.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm
bogomips : 3989.80
clflush size : 64
power management:

---------- Post added at 01:56 PM CST ---------- Previous post was at 01:24 PM CST ----------

so, any suggestion?

[marko]

Originally Posted by rudra-b

nop...this is not the case!!i m nt idiot enough to run high cpu jobs and complain abt temp increase.

Is there any possibility of problematic installation?

You wouldn't necessarily have to run a high cpu job for there to be high cpu usage.
Sometimes a package will have a bug or a missing device isn't handled right and
the OS looks frantically for a device that isn't there.

I've seen Xorg take off for no reason I can determine and use a lot of cpu. It's still a good idea to run top or ksysguard (if you use KDE desktop, press Cntl+Esc) to check that some
process isn't running hard.

[Gödel]

install and run powertop (as root), it will give you an accurate summary of what is running on the cpu and the distribution across frequencies (p-states)

see if anything unusual is causing a large number of wakeups

run f11 from a livecd see if sensors show the same (may have to install lm_sensors)

how are you so positive about the cpu temp before installation, did you have a monitor running constantly, or did you magically anticipate this problem?

[rudra-b]

I had lm_sensors installed...so, it was not problematic to check

This is my powertop output

Cn Avg residency P-states (frequencies)
C0 (cpu running) (23.4%) 2.00 Ghz 2.3%
polling 4.0ms ( 0.1%) 1.60 Ghz 0.2%
C1 mwait 0.0ms ( 0.0%) 1200 Mhz 0.2%
C2 mwait 0.3ms (10.4%) 800 Mhz 97.4%
C4 mwait 0.7ms (66.1%)

Wakeups-from-idle per second : 1218.5 interval: 10.0s
no ACPI power usage estimate available

Top causes for wakeups:
52.8% (1064.0) <kernel core> : hrtimer_start_range_ns (tick_sched_timer)
20.2% (406.3) skype : hrtimer_start_range_ns (hrtimer_wakeup)
10.5% (212.4) <interrupt> : uhci_hcd:usb4, uhci_hcd:usb6, HDA Intel
5.3% (106.0) npviewer.bin : hrtimer_start_range_ns (hrtimer_wakeup)
2.5% ( 51.0) <interrupt> : ehci_hcd:usb2, uhci_hcd:usb3, uhci_hcd:usb5
1.9% ( 38.7) USB device 2-2 : HUAWEI Mobile (HUAWEI Technology)

pls tell me what i can do?

[Gödel]

reproduce the lower temps from a livecd or go back in time and do a screenshot ;to prove they were lower

does the temp stay constantly higher, for hours on end?

[rudra-b]

in some lucky time, i do have:
$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +47.0°C (high = +85.0°C, crit = +85.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Core 1: +48.0°C (high = +85.0°C, crit = +85.0°C)

[Gödel]

ok, run 'top', 'powertop', 'watch grep MHz /proc/cpuinfo' and 'watch sensors' in side by side terminals and post a screenshot when the temps are high.

[wojtekjs]

I'm having similar problem with core 2 duo P8700 and fedora 12. Minimal core temp is 51 and 71 Celsius.
Is it possible that:

cat /proc/cpuinfo
[..]
power management:

has samothing to do with it? Maybe the voltage is to high?