Primary and external monitor blackout

  1. Create a file
  2. Click in order to save this file
  3. Press Delete key to input filename in Save dialog box.
  4. Press BackSpace key, primary and external monitor blinks with notification sound.

It has no problem in working. Is this normal ?

You are trying to backspace in an empty text box so it is alerting you that you are doing something wrong.

It likely will do the same thing at the command line if you were to hit backspace at the prompt instead of typing a line of text. My system does the same thing.

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It sometimes happens while browsing a webpage, but it has no notification sound. :shushing_face: