Oh I think I can guess what the problem is. Any settings remembered by the GUI/daemon/session may get overridden by this in /etc/pulse/default.pa:
### Use hot-plugged devices like Bluetooth or USB automatically (LP: #1702794)
.ifexists module-switch-on-connect.so
load-module module-switch-on-connect
.endif
If you remove that load-module line then it might do what you want. Please try it.
Oh I think I can guess what the problem is. Any settings remembered by the GUI/daemon/session may get overridden by this in /etc/pulse/ default. pa:
### Use hot-plugged devices like Bluetooth or USB automatically (LP: #1702794) switch- on-connect. so switch- on-connect
.ifexists module-
load-module module-
.endif
If you remove that load-module line then it might do what you want. Please try it.