>> I have Thinkpad T500 laptop with Fedora 14 KDE installed. Before the KDE
>> 4.6 update the idle CPU temperature was ~42C. However after the update the
>> CPU temperature varies between 48-50C.

> 50°C is a perfectly safe temperature for your CPU.

>> I noticed that the lm_sensors-lib package was also updated so I downgraded
>> it. But it didn't help. Testing the initial Fedora 14 KDE LiveUSB the CPU
>> temperature was about 40C so it's not hardware problem.

> The change may be related to the fact that KDE's PowerDevil was using HAL
> for power management, and now uses upower instead.

I thought upower doesn't influence the fan speeds. I would appreciate if you'll point me for some differences between HAL and upower.
>> I did notice that the fan speeds differ from the LiveUSB system now (e.g.
>> for the same temperature LiveUSB fan speed is higher - so the CPU temp is
>> lower).
>Lower fan speed = less noise and less power consumption.

You know, right now the fan speed is much more aggressive and I have no idea why it changed. I just wonder if there is some kind of config for fan control.
>So why are you complaining? :-)

It's just the new behavior and it's unusual :)
--
Regards,
Yaroslav Sapozhnyk