High temperature in toshiba laptop

[Guest]

Hi!

I have a toshiba tecra a7 with double boot window xp/kubuntu jaunty. I am (sadly) writing from the windows xp installation. In kubuntu the temperature of the laptop is to high, specially the area to the right of the touchpad. I queried the internal detectors and in kubuntu is always 15 to 20 degrees Celsius higher than in windows. I read that some programs do not inform the temperature correctly, but the difference is quite clear at bare hands. I have no (extra) application running. Just the OS after login in.

Just to give some details, most of the hardware (wireless, touchpad, etc) has been successfully detected and configured by kubuntu. I have not tested the fingerprint reader, the card reader, the external vga output nor the parallel port (why the heck someone will put this in a "modern" laptop!)
The power saving features seems to be working as I was able to change the lcd intensity from the power saving configuration. There is also possible to change the dynamic frequency but I was not able to verify that this is really doing something. The possibility to turn off a processor is disabled.

Any ideas?

Thanks in advance,

H.

[Detonate]

Re: High temperature in toshiba laptop

You may want to review this recent thread.

http://kubuntuforums.net/forums/inde...2746#msg182746

[Guest]

Re: High temperature in toshiba laptop

Thanks for your answer. Indeed, I tried using top and powertop to diagnose what is going on. The most active tasks are xorg and plasma. And the processor is idle 94-97%. The temperature gets higher as soon as I start opening applications (firefox, kdevelop4, dolphin) and gets much higher than it does if I open in Windows XP similar tasks.

In windows, I have disabled (using the device manager) some of the hardware that I do not normally use (fingerprint reader, parallel port, firewire port, modem, ethernet connection). I do not know if this really removes the power from these devices. But if it does, this could be the reason. How do I do the same in kubuntu jaunty?

Thanks,

H

[vinnywright]

Re: High temperature in toshiba laptop

you can kill or sudo kill eney thing...........but your line........And the processor is idle 94-97%.

97% is not idle could you post the top readout?

ps aux list's prosses's and you get the PID# to kill.

of corse top will do that to....... hit k and then the PID# of the ofending proses.

of corse if it's a root proses you half to open top sudo top

cant remember just how to disabel a proses perminent right now.

VINNY

[Windy]

Re: High temperature in toshiba laptop

Just a wild guess...
Do you (by any chance) have an HP printer installed?

[jensoko]

Re: High temperature in toshiba laptop

I have a similar problem. I'm on an IBM Thinkpad T61 and just upgraded to Jaunty today from Intrepid. When running top, my top line comes up as follows:

4841 jsoko   20  0 145m 26m 18m R  97 1.3 532:30.09 kded4

As far as I can tell, this isn't the plasma desktop, but rather whatever 'kded4' is that's eating major power. Firefox comes in a waaay distant second.

I haven't really tweaked hardly anything from my upgrade. Any help would be much appreciated--I use my laptop in my lap a lot and my biscuits are burnin'!

[doctordruidphd]

Re: High temperature in toshiba laptop

As far as I can tell, this isn't the plasma desktop, but rather whatever 'kded4' is that's eating major power. Firefox comes in a waaay distant second.

This seems to be a common problem when upgrading. You will need to kill all instances of kded4 while kde is running, shut it down, and restart. One way of doing this is to open konsole and type "pkill kded4". Another way is to hit CTRL-ESC, scroll to all instances of kded4, and kill them. Then restart.

[linxuser]

Re: High temperature in toshiba laptop

I have an A105 satellite and I've noticed it runs the cooling fan more when running kubuntu vs. winDoze.
My old satellite had a P4 processor and even in winDoze on warmer days would go into auto-shutdown.
No warning just would quit, not saving anything. Hence my switch to current laptop. w/mobile dual 2 processor. It runs much cooler. I came to question in hindsight why toshiba made a laptop with a 2.8MHz P4 in the first place. It was/is a nice computer except the occasional no notice, instant shutdown. Good they put that safety feature in it though. mobile processors run cooler an I guess mobile dual 2 processor, cooler still.

[jensoko]

Re: High temperature in toshiba laptop

This seems to be a common problem when upgrading. You will need to kill all instances of kded4 while kde is running, shut it down, and restart. One way of doing this is to open konsole and type "pkill kded4". Another way is to hit CTRL-ESC, scroll to all instances of kded4, and kill them. Then restart.

Thanks for this. I restarted without killing anything and right now it seems to be doing okay...or at least, better. Xorg is running about 25-36% of CPU and the little temperature gauge plasma applet has my cores running at around 118 and 129 F...and I don't automatically smell frying bacon when the laptop's on my lap.

I'm going to monitor it and see if any of my other programs might be having a problem or two.