Hi guys. From couple of weeks inspired by this community I am playing around with Linux. Trying to get rid of Windows. I had a lot of buds before I even tried. Many years ago I gave chance myself few times as well. But now there is more and more reasons to get familiar with this stuff.

However.

I am trying to figure out witch distro will be the best for me.

So far I've tried Latest Mint, latest Ubuntu and Debian. All on my old Laptop (HP Compaq Presario 2100).
All of the distros has one issue. If system is doing NOTHING, consuming 40--60% of processor power. Making machine very unresponsive obviously.
What can be a reason? I did a test under my old PC (AMD 3200+) a bit better but still... up to 30%. More or less I know what is the Linux and how the architecture of this system works. But this seems to be common issue. And is not acceptable for me that machine consuming so much power on stand by mode. The only mid point is both machines are AMD powered. Is that can be a reason?

Thanks in advance.