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Install php-tidy Module / Extension
Whenever you compile a new kernel, there are always new modules. The best way to make sure you have the correct modules loaded when you boot is to add all your modules in the modules.autoload file (they will be commented) and uncomment all those modules you need.
Also a good way to keep track of the available modules in your system.
For other distros you may have to change the name of the file to /etc/modprobe.conf
To ensure that it will never come back, you can edit /etc/modprobe.d/blacklist
Add "blacklist pcspkr" sans quotes