On Wed, 2017-09-06 at 12:08 +0430, Farhad Mohammadi Majd wrote: > This system has two OS: Debian v9 & Fedora v26, I installed PulseAudio > on Debian and tested this system with one speaker that has standalone > power and it does'nt work, this means headset and standalone > speaker neither don't work on this system without your explained hack. Yes, that's expected. The hardware doesn't know what you plugged in, so the behaviour is the same whether it's a headset or a speaker or a toaster with a 3.5 mm audio cable glued on its side. What you're calling a "hack" is a proper fix that will be included in the next PulseAudio release (if my patch gets approved by then). -- Tanu https://www.patreon.com/tanuk