Description of problem: I have recently updated from Fedora 23 to Fedora 25. I have two audio outputs, "HDA NVidia Digital Stereo (HDMI 4)" and "Built-in Audio Analog Surround 5.1". When I start the game "X-COM Enemy Within" from Steam, it creates two playback streams "game.x86_64: Playback Stream" and "game.x86_64: Simple DirectMedia Layer". I cannot move "game.x86_64: Playback Stream" between the outputs. However, when it starts, it can use either, depending what is the default at the time. Just cannot switch. I also do not get any error message. It also worked fine on Fedora 23. It works for the other stream from the same application. Version-Release number of selected component (if applicable): pavucontrol-3.0-6.fc24.x86_64 How reproducible: Every time. Steps to Reproduce: 1. Start "X-COM Enemy Within" 2. Start pavucontrol 3. Try to change target output of "game.x86_64: Playback Stream" to the other one Actual results: Target output does not change, no error message. Expected results: Target output changes, or, at least I get an error message to know why it cannot change. Additional info: Worked fine on fully updated Fedora 23.
Never mind, I have figured it out. Still not sure why it worked on Fedora 23 though. First I have found that problem is in Pulse Audio: ~ $ pacmd list-sink-inputs | grep -E '(index|application.name =)' index: 12 application.name = "mplayer" index: 14 application.name = "game.x86_64" ~ $ pacmd list-sinks | grep -E '(index|mixer_name)' * index: 0 alsa.mixer_name = "Nvidia GPU 60 HDMI/DP" index: 1 alsa.mixer_name = "Realtek ALC892" ~ $ pacmd move-sink-input 14 1 Moved failed. Then I have found that there is a DONT_MOVE flag. ~ $ pacmd list-sink-inputs | grep -E '(index|application.name =|flags)' index: 12 flags: application.name = "mplayer" index: 14 flags: DONT_MOVE START_CORKED application.name = "game.x86_64" Then it was just matter of web search and correct configuration for OpenAL in ~/.alsoftrc [pulse] allow-moves=yes