Ubuntu
gnome-settings-daemon package

  1. Bug #1248368
  2. Comment #32

Comment 32 for bug 1248368

Revision history for this message
Hai NGUYEN VAN (psaxl) wrote :

Sometimes deleting `.pulse/` is enough. I do not really understand where the problem is coming from.

Source: http://askubuntu.com/questions/387379/ubuntu-12-04-volume-up-down-mute-stopped-working