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Linux - Laptop and Netbook Having a problem installing or configuring Linux on your laptop? Need help running Linux on your netbook? This forum is for you. This forum is for any topics relating to Linux and either traditional laptops or netbooks (such as the Asus EEE PC, Everex CloudBook or MSI Wind).

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Old 05-05-2009, 01:57 PM   #1
Dasc
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Registered: Jul 2004
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Fan control on HP Pavillion dv7 1199el


I recently bought a new laptop and I'm now trying it out as a linux host for virtual development machines (mostly one at a time) in virtualbox.
this is my first try with linux as a desktop @ work, so far everything is working (almost) out of the box but I'm a bit concerned with fan speed management.

I installed several system monitors and they agree in reporting these temperatures (idle host and idle VM, cpu load about 20%):
cpu - mobo (2 sensors) -> ~33C
what I understand should be the gpu -> ~45C
and that's ok with me.

my worries start when cpu load raises:
sensors report constantly increasing temperatures going in the 45C (cpu) - 60C (gpu) range, with +7C spikes
and that's with just 60% cpu load peaks, 30-40% bottoms for a few seconds (30-60 tops)

I can see something is happening with fan speeds, since before installing NVIDIA drivers gpu temperature got in the 80C range in a few minutes while idle (that's dangerous btw..) but still, fan noise doesn't change noticeably, while at pc boot I can clearly hear the fan can spin much faster.

luckily I'm working on low load procedures at the time, but I don't know how much this will last..
I'd like the fan control to be more "aggressive" but I didn't manage to find any setting around (followed a couple guides)
For example I tried with lmsensors and ksensors but they seem to fail detecting any fan controller device and BIOS has just a "fan always on" option (which is enabled).
Any hints?

Distro is Kubuntu 9.04 + NVIDIA drivers
 
Old 05-10-2009, 03:14 PM   #2
business_kid
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I had this. I tortured myself for a month with a 64 bit HP 6715s which gave nutty temp readings and no graduation (In my case the fan stayed on 100%). The 4 fans are actually 4 speeds.

I grabbed a fedora kernel and cobbled it for my system and all the problems vanished. I had used Slamd64(=Slackware) but this caused the problems.

They are fixed now on slamd64 current which has a 2.6.29 kernel. Otherwise, grab a fedora kernel config and cobble it for your needs.
 
  


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