Is something using a lot of CPU time? run top, and look at the load averages at the top right. (number of tasks waiting running/waiting to run averaged over the last 5/10/15 minutes).
If it's not close to zero, something's keeping your CPU busy. Is your CPU idling at low speed, like it should be? run cpufreq-info, or if it's not installed, look at /proc/cpuinfo (the clock speed there is updated by the kernel's cpufreq framework). And cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor (ondemand is good, userspace is ok too if there is a userspace daemon checking the load and deciding what speed to set the CPU to.) Core 2 CPUs have a built-in temp sensor that reports a relative temp, relative to the max temp. e.g. on my desktop $ sensors coretemp-isa-0000 Adapter: ISA adapter Core 0: +59.0°C (high = +86.0°C, crit = +100.0°C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +58.0°C (high = +86.0°C, crit = +100.0°C) (sensors is in lm-sensors, and you have to configure it. You can just modprobe coretemp, and do grep . -n /sys/devices/platform/coretemp.0/temp1_* (I use grep here as an easy way to combine file names with file contents). I get: /sys/devices/platform/coretemp.0/temp1_crit:1:100000 /sys/devices/platform/coretemp.0/temp1_crit_alarm:1:0 /sys/devices/platform/coretemp.0/temp1_input:1:59000 /sys/devices/platform/coretemp.0/temp1_label:1:Core 0 /sys/devices/platform/coretemp.0/temp1_max:1:86000 ) see bug 264290 for more info about core 2 temp sensors, and a problem that seemed like it was caused by high temps, but has gone away for me with 2.6.27-3. -- WARNING: Intrepid might burn down MacBook Pro https://bugs.launchpad.net/bugs/262550 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs