Tom Ashcraft writes:
The problem is that *sometimes* when I use the 'action button' icon from either the 'main menu' or the 'panel' to suspend, shutdown, etc.; or, if I have to plugin or unplug the external charger/power supply for whatever reason, it emits an ear-splitting beep that makes anyone nearby jump right out of their skin and develop an instant case of PTSD.
Does anyone know how I can disable this?
First thing to figure out is whether this sound is the "system beep". I had a Dell Laptop some years back where the system beep was crazy loud. I don't know why a manufacturer would do that, but sometimes they do. If you type this: echo -e \\a (try it a couple of times, for me it didn't work the first time) does it make the same annoying loud beep? Try: sudo rmmod pcspkr and if it's the system beep, you probably won't hear it any more. I wrote about that here: https://shallowsky.com/blog/linux/taming-system-beep.html On that Dell with the loud beep, I didn't want to remove it entirely (it's useful in vim and in some other contexts). My solution was this: amixer -q -c 0 set Beep 5 I don't know if that still works under pulseaudio; I wasn't using pulseaudio on that machine. You can also use xset b volume pitch duration to make the system beep quieter, shorter and higher: if you make it short enough and high enough, it'll just be a subtle click. But that only works under X and might not help with the shutdown tone. Here are some other ways to get rid of the system beep: https://linuxconfig.org/turn-off-beep-bell-on-linux-terminal ...Akkana