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Hi all,

I am using Slackware64 13.37 on a Lenovo SL500 Thinkpad laptop. It has triple boot ;

Slack64
WIn7 32bit
Snow Leopard 10.6.6

When on Win7 and Snow Leopard cpu and other resources are at normal level. But when I pass to Slack64 (where I do %80 of my work) laptop heats too much when compared to other operating systems. There is file indexing and nothing much more. Why this machine heats too much in this os ? I would appreciate recommendations.

Hi,
probably you don't have enabled the cpu frequency scaling.Check with lsmod, if acpi-cpufreq module is loaded and check also that you have enabled a governor (ondemand usually works fine) http://slackwiki.org/CPU_Frequency_Scaling.Anyway to be sure ,try to check also the load average of your system with the utility top (launch it from a bash shell),maybe there is a process stuck or some issue with the ACPI support of your notebook.

@y33t: which tool do you use to check the CPU usage?

acpi-cpufreq is loaded. I check using system monitor and "top" utility from command line. When usb bulk transfers are on I Noticed that the heat is producing more. It might be a hardware related problem but all functionality works ok so far.

I asked you about the tool because if you use the KDE CPU monitor it doesn't work.
If you use the disk the KDE monitor tells you that the CPU is working, but it's not, if you use "top" instead should show you that the CPU usage (during the transfer from USB) it's almost 0%.

Yes I am using KDE System Monitor., why doesn't it work I thought it did. USB doesn't draw that much of power from cpu but I observed that copying files to hard drive from usb is much smoother in other operating systems as I mentioned.