Kernels and Overheating

[Aleph]

Hi friends,

I was reading this post at the Crunchbang forum about overheating and how to solve it.

http://crunchbang.org/forums/viewtopic.php?id=23445

Have we in PCLinuxOS the same problem about this?

Have we a solution?


Thanks.

[kjpetrie]

There is (or was - I haven't looked recently) a 3.4 kernel in testing.

[Aleph]

There is (or was - I haven't looked recently) a 3.4 kernel in testing.

Hi kjpetrie

then, this mean we don't have solution for the kernel 3.2? the only solution is to be testing?

[agmg]

You can install this kernel to try it out and if it doesn't work for you, you can go back to 3.2

You don't have to be a Tester to do this. Just edit the properties of the mirror you are using so under Section(s) it reads:

main updates nonfree kde games xfce4 testing

Install the kernel (3.4.11), don't remove your current one and reboot.
Give it a little time on first boot.

[Old-Polack]

You can install this kernel to try it out and if it doesn't work for you, you can go back to 3.2

You don't have to be a Tester to do this. Just edit the properties of the mirror you are using so under Section(s) it reads:

main updates nonfree kde games xfce4 testing

Install the kernel (3.4.11), don't remove your current one and reboot.
Give it a little time on first boot.

... and don't forget to remove testing from the Section(s): box after installing the kernel, and also click the Reload link before shutting down Synaptic and rebooting.

[agmg]

Thanks O-P

[Just17]

There is (or was - I haven't looked recently) a 3.4 kernel in testing.

Hi kjpetrie

then, this mean we don't have solution for the kernel 3.2? the only solution is to be testing?

Have you seen this problem when using PCLinuxOS? .....  with 3.2 or 3.4 kernels?

[Aleph]

Thanks agmg and Old-Polack,

and which is your advice for a laptop with a temp about 60ºC, to stay using the 3.2 or 2.6.38 kernels or install the 3.4.11?

[agmg]

Maybe it's not the kernel that causes the overheating but something else?

Have you tried cleaning your laptop lately?
What is your CPU?
My Core2Duo T6600 2.2GHz rarely goes over 55ºC on full load (and that is on hot summer days).
I'm using kernel 3.2.18-pclos2.pae.bfs.
How do you read the temperatures?

[Aleph]

Maybe it's not the kernel that causes the overheating but something else?

Have you tried cleaning your laptop lately?
What is your CPU?
My Core2Duo T6600 2.2GHz rarely goes over 55ºC on full load (and that is on hot summer days).
I'm using kernel 3.2.18-pclos2.pae.bfs.
How do you read the temperatures?

My CPU is similar 2.2Ghz, is a Lenovo T61.

Yes is clean.

I read  the temperatures by lxtemp, now are:
temp 1 52ºC
temp 2 54ºC
temp 3 31ºC
temp 4 55ºC
temp 5 17ºC

And it's cold at home...

[agmg]

I guess it's a little high but not worrying...

Have you checked if there is a process or an application using your CPU?
What's the CPU load when computer is idle?

[Old-Polack]

Thanks agmg and Old-Polack,

and which is your advice for a laptop with a temp about 60ºC, to stay using the 3.2 or 2.6.38 kernels or install the 3.4.11?

There's an old saying... if it ain't broke... don't fix it.

If you are not experiencing any problems with the kernel you are presently using with your hardware, what do you hope to gain by installing a different kernel? Newer kernels usually support newer hardware, as well as the older hardware. If you are actually experiencing problems with the present kernel, then a newer one may well correct that problem, but could also possibly create a different problem. You won't know until you try. If you install a newer kernel, and don't remove the older kernel, you can still boot to either, and compare each to the other. I've regularly had systems with 8-10 different kernels installed. My present system has 9 installed kernels;

[root@fatman ~]# ls -l /boot |grep vm
lrwxrwxrwx 1 root root       21 Dec 30 16:21 vmlinuz -> vmlinuz-3.6.11-solcp1
-rw-r--r-- 1 root root  2291936 Jul 17  2011 vmlinuz-2.6.38.8-pclos3
-rw-r--r-- 1 root root  2245440 Apr 17  2012 vmlinuz-3.2.15-pclos1
-rw-r--r-- 1 root root  2238560 Apr 17  2012 vmlinuz-3.2.15-pclos1.bfs
-rw-r--r-- 1 root root  2240480 Apr 23  2012 vmlinuz-3.2.16-pclos1
-rw-r--r-- 1 root root  2236528 Apr 23  2012 vmlinuz-3.2.16-pclos1.bfs
-rw-r--r-- 1 root root  2243392 May 12  2012 vmlinuz-3.2.17-pclos1.bfs
-rw-r--r-- 1 root root  2235136 May 22  2012 vmlinuz-3.2.18-pclos1.bfs
-rw-r--r-- 1 root root  2208688 Feb 21  2012 vmlinuz-3.2.7-etjr2
-rw-r--r-- 1 root root  2684784 Dec 22 10:47 vmlinuz-3.6.11-solcp1

My current default kernel is the 3.6.11, as shown by the vmlinuz link, highlighted in blue. For the most part the 3.x.x kernels work better with my hardware than the 2.6.38 kernel did, but it's hard telling the difference between the various 3.x.x kernels. They all seem to work equally well. For that matter, the 2.6.38 kernel was perfectly acceptable, before the 3.x.x kernels arrived. None of the kernels posed any specific problems, it's just that the 3.x.x seem to boot and run a bit faster.

For reference, the current hardware is;

Gigabyte GA-970A-UD3 Motherboard
AMD FX 4100 Zambezi 4-core CPU
nVidia GeForce 9800 GT Graphics card
16 GB G.SKILL DDR3 1600 RAM
Antec BP550 PSU
4 Seagate Hard Drives - Total capacity 5.75 TB

[Aleph]

What's the CPU load when computer is idle?

@agmg Lstask show this:

CPU: 2-3%
- conky
- lxtask
- gvfsd-trash
- yad
- sleep
- update notifier
- wbar
- clipit
- lxpolkit

There's an old saying... if it ain't broke... don't fix it.

O-P ,I think I'll stay with my old kernel

[agmg]

I would try the 3.4.11 kernel, just for fun. (and to satisfy my curiosity ) See if it makes any difference.
I had installed it for a while but didn't notice any changes. Dropped it because it was non-bfs.
You can always come back to your current kernel in no time

[pags]

I would try the 3.4.11 kernel, just for fun. (and to satisfy my curiosity ) See if it makes any difference.
I had installed it for a while but didn't notice any changes. Dropped it because it was non-bfs.
You can always come back to your current kernel in no time

It's also non-PAE...otherwise, I would have tried it, as well.

Oh well.  All in good time.