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How to stop CPU beep in Ubuntu Linux?

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http://lpilinux.com – 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 shoul (HowTos)