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This is a new feature from 15.04 in ubuntu-driver-common. Ubuntu will now automatically try to find hardware and their additional drivers and packages to have a better more stable (hopefully) system with less user hassle. For example in 14.10 nvidia optimus GPU drivers had to be installed from a separate PPA but in 15.04 the system knows that they are there ...


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In Short Your system configuration is probably fine. Gnome-system-monitor is simply reporting the wrong number. No need to worry. As already mentioned in a comment above, the “System” tab is gone in Ubuntu 14.04. In More Detail You have hit a hard upper CPU number limit that is set in libgtop (a library which is used by gnome-system-monitor). Quoting ...


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Check if your program is controlled by cpulimit application # cpulimit -l 30 /bin/yourprogram & The above command will start application but will not allow application to use more than 30% of cpu cpulimit.1.html cpulimit examples


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To see CPU temperature in in thousandths of a degree C, use the following command: cat /sys/class/thermal/thermal_zone0/temp To see detailed temperature information for other system temperature it is best to install lm-sensors using: sudo apt-get install lm-sensors Then you can run sudo sensors-detect to detect the sensors in your system and type yes ...


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Not all pstates are available when using acpi-cpufreq. You can check the available frequencies (pstates) via: sudo cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies Is 2100 listed? If it is listed, what do you get for: grep MHz /proc/cpuinfo and cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_setspeed Based on your comments, it ...


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I have set it in .bashrc as an alias (and as root), because I experienced similar problems. The aliases look like this: alias performance="echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor" alias powersave="echo powersave > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor" alias ondemand="echo ondemand > ...



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