Change/Disable Sound Popup

[lah7]

@stevecook172001 , this is likely the "pop up" when the volume up or down keys are pressed.

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See here for a way to "disable" the pop up:

How can i disable popup notification for volume control?

I’ve never seen an option that does this neither. There is a way! This involves changing what the keyboard shortcuts do. In the Keyboard Shortcuts options, disable the shortcuts for “Volume up” and “Volume down” by clicking on them and hitting Backspace. At the bottom, create two new custom shortcuts with these commands: Decrease Volume amixer -D pulse sset Master 5%- Increase Volume amixer -D pulse sset Master 5%+ You can change 5% to a different number if you like. …

I can remember this pop up may look a bit different depending on the window manager in use -- like Marco or Compiz... but I think they're both the same now.