Stop CPU beep in Ubuntu/Debian

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http://thelinuxblog.net – The CPU beep is a really irritating thing in Linux distros and sometimes the graphical sound manager does not work when shutting it up. Fortunately there is a simple way to do it in terminal. In Ubuntu (and distros based upon it) type: gksudo gedit /etc/modprobe.d/blacklist In Debian type: su gedit /etc/modprobe.d/blacklist And add the following line to the file: blacklist pcspkr Save it and reboot. Now the CPU beep should be disabled! (Distributions)